2024 Michindoh Truck and Tractor Pull Association Rules

 

Rules as of 11/19/2023

 

All changes highlighted in yellow.

 

General Rules:

 

 

 

 

1. Michindoh Classes are:

 

 

 

6,000lb. Stateline Pro Street 4x4 (points class)

 

6,200lb. 2wd Super Stock (points class)

 

 

6,200lb. 4wd Altered Stock (points class)

 

5,200lb. 2wd Pro Street (points class)

 

 

5,700lb. Michindoh Modified Rails (points class)

8,000lb. Hot Street Diesel  (NO points class)

 

Open (see rules) 100% Payback

 

 

2. If at the end of a given pulling season, any point’s class that had an average number of entries less than 3 over the course of that season. That class will be transitioned to a 100% payback and will not be a point’s class for the following season or may be dropped.

3. Class rules will not change throughout the current year unless there is a safety issue with

 a rule. The decision of the board to change a rule deemed to be a safety issue will require a

 majority vote of the board.

 

4. All drivers and vehicles in Michindoh classes must be paid Michindoh members and possess

 a Michindoh pulling vehicle number.

 

 

 

 

 

 

 

5. Classes will have a random pulling order from event to event.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6. Drivers in all classes must be entered before the start of the pull. Late entries for all

 

 

 

 

 

 

 

 

 

 

 

 

 

 

classes: If not registered ½ hour before posted start time, you will be fined $20.00 for late

 

 

 

 

 

 

 

 

 

 

 

 

entry fee.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7. If you cannot be at the pull on time, you may pre–enter by contacting someone who can be

 there on time.

 

 

 

 

 

 

 

 

 

 

8. If you break before your class starts, your entry fees will be refunded.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9. NO refunds after class starts.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10. The driver who is on the entry form MUST be the driver in the vehicle. If a substitute is

required, you must notify Michindoh officials before the vehicle is pulled up to the sled.

 

11. Drivers that make a full pull MUST be the drivers in the pull off. NO substitution will be

 allowed or the pull will be disqualified.

 

 

 

 

 

 

 

12. For general safety, the Head Tech Official and/or class tech official may inspect a vehicle

 at any time. This includes, but does not limit to: pumping for cubic inch, checking the fuel

system and any safety item, under the hood or in the drive train. All owners/representatives

of all vehicles at any pull site must allow an inspection to be done in his presence. A random

 pump ball will be used during registration to select who will be pumped. Anyone who refuses

 will be in direct violation of this rule and will be subject to disqualification under protest

teardown rules.

13. Only the official operating the pump and the owner of the vehicle being pumped will be

 

allowed near the vehicle while being pumped.

 

 

 

 

 

 

14. As soon as the sled returns and/or the start line officials call you, drivers must be ready to

 

pull. The driver will have THREE MINUTES to hook to the sled and tighten the chain.

 

After this time, the pull will be forfeited.

 

 

 

 

 

 

 

15. Contestant will be allowed 2 attempts to start the sled within the first 100 feet of the pull,

 

 

 

 

 

 

 

 

 

 

 

 

 

at the discretion of the starting flagman. Only 2 attempts allowed to start the sled in the

 

 

 

 

 

 

 

 

 

 

 

 

 

event of a pull off. Vehicles’ are not allowed to return to the pits if involved in a pull off.

 

 

 

 

 

 

 

 

 

 

 

 

 

16. The total weight of the pulling vehicle includes driver.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

17. Driver’s meeting takes precedence over all written rules.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18. Idle speed only while driving in pit area.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

19. All electric fuel pumps must be connected through the kill switch.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20. All pulling vehicles must have a 3–1/4” wide x 3–3/4” deep opening due to NTPA rule

 

 

 

 

 

 

 

 

 

 

 

 

changes on weight transfer hooks.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

21. All pulling vehicles must have reverse lights (white lights) and neutral start switches.

 

 

 

 

 

 

 

 

 

 

 

 

Light should be mounted near hitch. This is mandatory for all classes.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

22. There will be no “gimme” hooks for any driver or vehicle.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

23. All vehicles must have a working fire extinguisher.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24. Board of Director has precedence over all.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

25. All drivers must wear approved helmets and seat belts.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

26. All drivers must have valid state drivers license.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

27. An owner cannot change vehicle and keep same vehicle number and or transfer points.

 

 

 

 

 

 

 

 

 

 

 

 

28. With an incorporated safe shut down area, all tracks will be 300 ft long whenever

 

 

 

 

 

 

 

 

 

 

 

 

 

possible. Rather than starting a class all over, the head judge and sled operator may

 

 

 

 

 

 

 

 

 

 

 

 

 

utilize some of the shut down area to extend the finish line to a floating finish if the sled

 

 

 

 

 

 

 

 

 

 

 

 

is set properly, as long as the sled will stop the class within 30 ft of the original finish

 

 

 

 

 

 

 

 

 

 

 

 

 

line. A pulling track may be shortened from 300 ft, to maintain a 100 ft minimum

 

 

 

 

 

 

 

 

 

 

 

 

 

shutdown.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

29. Vehicles must have a one piece, 1/4” hydro form bell housing on any straight shift. If any

modifications are made, modified area must be ground smooth inside and out. All

 

vehicles using a clutch and flywheel assembly will run a full block saver plate of 1/8”

 

steel, with all bolts possible installed. Diesel powered vehicles are exempt from this rule.

30. All flywheels must be steel or aluminum and SFI approved. No cast stock flywheels

allowed. Each vehicle owner will sign a waiver on the membership form stating that they

are running a SFI approved flywheel.

 

 

 

 

 

 

31. All automatic transmissions must have SEMA approved scatter blanket and SFI approved

flexplate.

 

 

 

 

 

 

 

 

 

32. Block spacers to accommodate multiple disc clutches must be as substantial as the block

flange to retain flywheel. This will be at the tech official discretion.

 

 

 

33. All vehicles must have easy and ample access to hitch to hook chain.

 

 

34. All Reese style hitch inserts must be a class 5 or solid insert. With no movement in any

direction.

 

 

 

 

 

 

 

 

 

35. Any engine to be pumped or torn down is allowed 1% max tolerance, due to inaccuracy

of our measuring devices.

 

 

 

 

 

 

 

36. All vehicles must have working hydraulic brakes capable of sliding the tires when

applied.

 

 

 

 

 

 

 

 

 

 

Michindoh Points System

The point’s structure is as follows:

1st 15 place points + 15 hook points /10th 6 place points + 15 hook points

2nd 14 place points + 15 hook points /11th 5 place points + 15 hook points

3rd 13 place points + 15 hook points /12th 4 place points + 15 hook points

4th 12 place points + 15 hook points /13th 3 place points + 15 hook points

5th 11 place points + 15 hook points /14th 2 place points + 15 hook points

6th 10 place points + 15 hook points /15th 1 place points + 15 hook points

7th 9 place points + 15 hook points/16th and lower will receive zero place points + 15 hook points

8th 8 place points + 15 hook points                                                                       

9th 7 place points + 15 hook points                                                                       

 

Points Rules:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

To be eligible for 15 hook points, the competitors vehicle must compete in a point’s class, and

 

 

 

 

 

 

 

 

 

 

 

 

have paid an entry fee, passed inspection, and paid full Michindoh membership dues.

 

 

 

 

 

 

 

 

 

 

 

 

Points are awarded to the vehicle, not to the driver. Each pulling vehicle will receive

 

 

 

 

 

 

 

 

 

 

 

 

placing point at each pulling event. First place will be awarded 15 points, Second place will

be awarded 14 points, and so on.

 

 

 

 

 

 

 

If a pull is cancelled, 15 “show up” points will be issued to those vehicles already

 

 

 

 

 

 

 

 

 

 

 

 

entered. At the end of season, all competitors will drop their lowest “place points”/ and

 distance from that drop on the season. The competitor’s lowest place points may include

 a missed event. “Show up” andHook“ points cannot be dropped.

At the end of the pulling season if there is a tie in points between vehicles in the same

 

 

 

 

 

 

 

 

 

 

 

 

class, the distances that each of the vehicles pulled at each of the events will be added

 

 

 

 

 

 

 

 

 

 

 

 

together. Whoever has the furthest total distance will be awarded the points championship

 

 

 

 

 

 

 

 

 

 

 

On–track disqualifications (i.e. out of bounds, loss of weight, etc) will receive last place

 

 

 

 

 

 

 

 

 

 

 

 

points and last place payout in class. If there is more than one entry disqualified in a given

 class,the last place points and payout will be divided equally among the disqualified entries.

Protest and Tear Down Rules:

 

You may protest (if you are Michindoh member in the same class) to have any

 

vehicle pumped the night of a pull by presenting $350.00 to the president or vice

 

president present. If found to be illegal by the pump, the owner may tear down the

 

engine at their expense to prove it legal or be barred from competition for one year

from

violation. If the vehicle in question is found to be legal it will keep the $350.00 pump fee.

You may also protest to have a vehicle torn down (if you are a Michindoh

member in the same class). The person protesting must bring $750.00 cash to the

president or vice president present. The protest will be discussed. If the vehicle in

question is to be torn down, it will have the option to do it at the track or at the nearest

suitable location. The vehicle or engine will be impounded until the tear down. The tear

down must happen with–in three days of the protest. If the vehicle in question is found

to be legal, all protest fees will go to the owner.

Any vehicle found illegal and/or refuses to be protested or teched, will be barred

from competition for one year from violation. Unless, they are willing to pay a

reinstatement fee of $500.00 to the club and prove the vehicle is legal. Any money and

points won the day of the protest will be returned or withheld by the club. If the vehicle

in question refuses to refund winnings, the amount of those winnings will be added to

the reinstatement fee.

 

The tech–official for the class has the right to check any vehicle they feel may be in

violation of any rules without a protest fee with the permission of the board of directors.

Causes for Disqualification:

1. Loss of anything off the vehicle (i.e.: weights, parts, etc.) while it is in motion, except in

 

 

 

 

 

 

 

 

 

 

 

 

the case of breakage in the drive–line, until red flag is waved.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2. Loss of safety equipment or failure of safety equipment to function.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3. Excessive loss of liquid or steady stream, except in the case of internal breakage.

 

 

 

 

 

 

 

 

 

 

 

 

 

4. Illegal fuel and use of Nitrous Oxide.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5. Any part of your vehicle out of bounds from start to finish while under the green flag.

 

 

 

 

 

 

 

 

 

 

 

 

6. Unsafe operations of any vehicle in pits or on track (i.e.: no hole shots, excessive speed,

 

 

 

 

 

 

 

 

 

 

 

 

etc.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7. INTOXICATION of any driver or pit crew member or any smell of alcohol on a driver’s

 

 

 

 

 

 

 

 

 

 

 

 

breath.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8. Illegal equipment.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9. Leaving starting line under red flag.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10. Un–sportsman like conduct.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11. No reverse in vehicle.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12. If DQ for cheating, all points and money will be forfeited.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13. If a DQ vehicle will receive last place points in the class, and if more than 1 vehicle is

 

 

 

 

 

 

 

 

 

 

 

 

DQ, they share at the bottom of the list in the same order they were otherwise. Out of

 

 

 

 

 

 

 

 

 

 

 

 

 

bounds only.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Track Preparation:

 

A Michindoh safety tech or officer will be in charge of track preparation and

 

maintenance. All event personnel will be under their supervision. Failure of event

personnel to comply will mean cancellation of the event. This rule has been added to

provide better pulling tracks. Michindoh members will also be required to assist the

officers with other track work as needed at the pulls, such as lining up pulling vehicles,

flagging, etc.

 

 

 

 

 

6200lb. 4wd Altered Stock

Rules locked, 2023,2024,2025

With the exception of safety requirements approved by the board.

Must also follow all general rules listed above.

 

1. Hood modifications and upright headers are acceptable.

 

2. Tires must be D.O.T. approved for highway use and uncut. No recaps.

 

3. Protest rules in effect.

 

4. The decisions of the pulling officials are final.

 

5. Kill switches are mandatory. Electric fuel pumps must be wired through the kill switch.

 

6. Trucks must have a full body, no flat beds, if bed floor is removed it must be covered and

 

not visible to spectators.

 

7. Will allow racing seat.

 

8. Fuel tanks are allowed to be in front of vehicle if they are S.F.I. and have braided hoses

 

and pressure coupler. Batteries may be mounted out in front of the truck but battery must be

 

enclosed. No Batteries in cab.

 

9. All drivers are required to wear full face helmets and jackets and pants with a SFI rating

 

of 3–2a–1. Shoes also recommended.

 

10. All drivers are required to wear seatbelts.

 

11. All vehicles must have a working fire extinguisher.

 

12. No tilt bodies are allowed.

 

Weights:

1. Front weights to be a maximum of 60” from center of front axle.

2. No loose weights in cab.

Hitches:

1. Maximum hitch height is 26 inches, & minimum 36 inches from center of rear end

maximum of 48 inches.

2. You must use a steel plate hook point with a minimum 3 ¼ wide 3 ¾ deep hole.

3. Pivot point of hitch cannot be forward of center of rear axle. It must be below top of frame

rails, and hook point must be behind frame rail or body.

4. Hitches must be tight and have no movement in any direction.

Engines:

1. Maximum 514 cubic inch + 1% tolerance, naturally aspirated V8 engine.

2. Any single four–barrel carburetor is allowed.

3. No turbochargers or superchargers.

4. No fuel injection unless factory equipped.

5. Cast iron block and Any Conventional style head no spread port heads no big duke or big chief heads.

6. No pressurized fuels. No methanol alcohol fuel.

7. Front of engine block cannot extend more than 10 inches of the center of the front axle.

Front axle must be in stock location.

Harmonic Balancer:

1. All engines must be equipped with a harmonic balancer or dampener meeting SFI

Spec18.1.

2. All vehicals are required to shield all rotating mass mounted on the front of the

crankshaft, if unobstructed. Shields to be from frame rail to frame rail and top to

bottom. Shields to be a minimum of .125” steel or aluminum fastened by at least 2

evenly spaced 3/8” grade 5 bolts.

Transmissions & Drivelines:

1. Maximum wheel base 134 inches center to center.

2. Stock type one ton or two ton drive–lines are permitted. No planetary.

3. Drop box’s and Reverses are allowed.

4. May block frame solid.

5. Must have scatter proof bell housing or automatic transmission blanket, and S.F.I

flywheels.

6. No tube chassis are allowed.

U–joint shielding:

1. All u–joints and yokes must have a 360 degree cover, at least 6” long (covering entire

yoke and u–joint), 1/4” thick steel (3/8” thick aluminum). Inside diameter of shield will

be no more than 2" larger than u–joint. If cover is cut in half it must be fastened no farther

than 1” from ends with at least 3/8”– grade 8 bolts. Must be bolted a maximum of 6” from

bolt to bolt. All intermidiate shafts need covered 360 degrees. NO HINGE STYLE

fasteners permited. Must be securly fastened.

Drive shaft loops:

1. Drive shaft loops required (3/4” or wide), 1/8” or thicker steel (1/4” or thicker

aluminum). No more than 2” larger than the largest u–joint. If cut in half, must be bolted

within 1” from ends and a maximum of 16” apart from loop to loop (multiple loops). If

using a one piece cover it must be bolted a maximum of 6” apart the entire length and at

least 1” from ends. All fasteners must be at least 3/8”– grade 8 bolts. NO HINGE STYLE

permited. Must be securly fastened.

ALL THE ABOVE RULES WILL BE STRONGLY ENFORCED

DUE TO YOUR SAFETY AND THE SAFETY OF OTHERS.

THE OFFICIALS’ DECISIONS ARE FINAL!

**The Head of Class/Tech Official for each class will enforce all

of the rules! Every vehicle will be teched on a random basis at

some point throughout the season.**

 

6200lb. 2wd Super Stock

Rules locked, 2023,2024,2025

 

With the exception of Safety requirements approved by the Board.

Must also follow all general rules listed above.

Engines:

 

1. Maximum single 514 cubic inch 1% tolerance, naturally aspirated V8 engine.

 

2. Cylinder heads: two valves and one spark plug per cylinder. Aluminum heads are allowed. No

 

less than 24 degree head. No Hemi heads.

 

3. Legal aluminum heads: CHEVROLET: dart–320, 360, and Pro 1, Brodix 1 & 2, and all

 

Edelbrock. FORD: Cobra jet, Blue Thunder and TFS A460. CHRYSLER: Indy 444–1. Not

 

limited to these heads, but must meet A & B.

 

3a. Must have cast aluminum manifold.

 

3b. Must except stock rocker arm assembly.

 

4. The front of the engine block cannot extend more than 160 inches forward of the center of the

rear axle or 20 inches forward of the center of the front axle.

 

5. One carburetor, gasoline only, no pressurized fuels, no methanol.

 

Harmonic Balancer:

 

3. All engines must be equipped with a harmonic balancer or dampener meeting SFI

Spec18.1.

 

4. All vehicals are required to shield all rotating mass mounted on the front of the

crankshaft, if unobstructed. Shields to be from frame rail to frame rail and top to

bottom. Shields to be a minimum of .125” steel or aluminum fastened by at least 2

evenly spaced 3/8” grade 5 bolts.

 

Hitches:

 

1. Maximum height 30 inches.

 

2. Minimum 36 inches behind center of rear axle.

 

3. Maximum 48 inches behind center of rear axle.

 

4. Pivot point of the hitch can not be forward of the center of the rear axle.

5. Must be rigid at all hook points.

 

6. Must be no smaller than a 3 ¼ deep 3 ¾ wide opening at the hook point.

Tires & Wheels:

 

1.Can run any size street legal DOT tire. Maximum size 35x12.50 or 315–70–16 metric. Can run

34X18.0X15 pulling tires allowed.

2. No split rims; snap rings or dual wheels.

Transmissions & Drivelines:

1. Stock altered frames. No tube chassis.

2. Maximum wheel base 140 inches center to center.

3.All u–joints and yokes must have a 360 degree cover, at least 6” long (covering entire yoke and

u–joint), 1/4” thick steel (3/8” thick aluminum). Inside diameter of shield will be no more than 2"

larger than u–joint. If cover is cut in half it must be fastened no farther than 1” from ends with at

least 3/8”– grade 8 bolts. Must be bolted a maximum of 6” from bolt to bolt. All intermidiate

shafts need covered 360 degrees. NO HINGE STYLE fasteners permited. Must be securly

fastened.

4. Drive shaft loops required (3/4” or wide), 1/8” or thicker steel (1/4” or thicker aluminum). No

more than 2” larger than the largest u–joint. If cut in half, must be bolted within 1” from ends and

a maximum of 16” apart from loop to loop (multiple loops). If using a one piece cover it must be

bolted a maximum of 6” apart the entire length and at least 1” from ends. All fasteners must be at

least 3/8”– grade 8 bolts. NO HINGE STYLE permited. Must be securly fastened.

5. Must have a fully enclosed S.F.I. approved explosion proof bell housing on standard

transmission.

6. Must have S.F.I. approved flywheels for both automatic and standard transmissions.

7. Automatic transmissions must have S.F.I. approved flywheel shield and transmission blanket,

or tunnel shield.

8. Any rear axle is allowed.

Weights & Safety Rules:

 

1. Weights can be mounted anywhere on the truck in safe manner. No Loose weights in cab.

2. Weights cannot extend more than 60 inches forward of the center of the front axle, or any part

of the truck.

 

3. Driver must wear seatbelt.

 

4. Batteries must be in protective case and must have a battery disconnect switch on outside if

mounted in front. No batteries in cab.

 

5. Must be mounted and working fire extinguisher in the cab.

 

6. No gas tanks in the cab.

 

7. Must have working kill switches and they will be checked.

 

8. Brakes must hold vehicle.....steering brakes are allowed.

 

9. Must have radiator overflow.

 

10. Drivers must be at least 16 years of age and have a valid driver’s license.

 

11. No car bodies, vans, blazers, broncos, or fiberglass bodies allowed. With fiberglass hoods

being the only exception.

 

12. Hood required covering as much area as possible.

 

13. Engine side shields required (.100 for steel and .125 for aluminum), unless inner fenders are

installed.

 

14. No holes in firewall or floor larger than 1 inch.

 

15. Balancer must be S.F.I. approved or covered 360 degrees.