2016 Pierce County WI Fair: The Ellsworth Funsters Demolition Derby
Stock Truck Rules:
This is a low build class. Must remain stock other than stated in rules.
*All vehicles must have a number roof sign on roof, secured properly. Minimum size 12X12.*
1) 1/2 - 3/4 ton American made pickup, extended, crew cabs or Suburban are allowed. No 1 tons, 4X4
or frame swaps. Frames must remain stock and not shortened or altered in any way. No welding
other than specified. No adding extra braces in frame or engine cradles.
2) Hood may be chained with 3/8 chain, wired, or bolted in 6 separate locations. Two chains or wires
may go from core support to bumper. You will be allowed two ¾ rods welded to frame on the
backside of core support used for hood pin. You will be allowed a 5x5 inch washer, welded to top of
core support for hood pins to go through. Other 4 locations ¾ hood pins, wires, or chain must go
from sheet metal to sheet metal only.
Hood washers no larger than 5x5 inches ¼ thick, hood pins must be straight up and down 1 ft. max
length.
3) Option: You may have two window bars no larger than 3 in diameter or 2 #9 wires in windshield
opening to prevent hood from entering driver’s compartment for driver’s safety.
Doors may be chained two locations per seam or welded 24 inches of total weld outside only. (1/4
inch strap no wider than 2 inches).
4) Driver’s door may be welded solid and reinforced with a four inch piece of C-channel, no more than
six inches past front/back door seams for safety. You can have a driver’s window net also.
5) Tail-gate may be either chained in two locations per side or welded 24 inches total.
6) Front and rear bumpers may be changed to any stock automotive style bumpers. No stuffed bumpers
or pointies are allowed. No adding bumper brackets to frame.
7) Or you can use a five foot long max, 4X4 square tubing, 3/8” thick. Must be covered by a skin on
front side. Bumpers may be welded to the frame. Plus, you may use two 4x4x1/4” thick angle iron to
help secure bumper to frame on 2 sides.
8) Bumpers cannot be any lower that 24” at bottom. No lowriders.
9) Any ply tire allowed, stuffed, skid, ag ok, split rims allowed but ring must be fully welded. Rims
must remain stock no rim centers.
10) Front axle non leaf-spring trucks may install ¾” bolt in center of a-arm welded to spring pocket to
gain height. Stock leaf packs, no adding leafs, you may have 6 leaf clamps per leaf pack total, no
leaf conversions. May chain rear humps with one 3/8” chain per side from frame to axle tube on rear.
1/2 ton may swap to 3/4 ton rear ends, may be welded posi-traction, no bracing on rear ends. No
reinforcing upper A-frames.
11) May interchange engines and transmissions, with no adding engine cradles or extra braces in frames.
You may have 2 chains, or 2 pieces of flat stock ¼” x 3” bolted to motor and welded to frame. No
farther back than the first spark plug and no farther forward than the water pump.
12) Motor mounts may be welded solid. Block saver lower engine cradles allowed without pulley
protector. Distributor protectors or transmission protectors will not be allowed, frame must remain
stock other than specified. No radi-barrels must use a radiator, or loop hoses.
13) Transmission may be chained, bolted or wired to cross-member. Any driveshaft may be used. May
use slider.
14) Box may have 8 total locations of chains or up to 3/4” max bolts to secure box to frame with
5x5x1/4” washers. Six bolts in cab (3/4 max size bolts with plate size no larger than ¼ inch thick
2016 Pierce County WI Fair: The Ellsworth Funsters Demolition Derby
and 5x5 inches square). Bolts may be bolted through top of frame like factory or may weld to
outside of frame. Do not pin frame. May remove original body mounts.
15) Must have roll over bar mounted in front of box as close as possible to cab, must be bolted to box
floor ¾” bolt ¼”x5x5” washer. May have kickers two feet back from upright to support. Roll bar
cannot be attached to interior cage components. Box may be welded to cab total of 24”x ¼” x 3”.
16) Suburban are allowed 6 spots #9 wire behind rear seat.
17) Drivers Cage/ Roll Bar: Must have four point cage. This is safety.
18) A 4 point cage consists of 1 dash bar, 1 bar behind seat, 1 bar along drivers and passengers’ door.
Additional two front down bars, off dash bar which can connect to front cab mounts.
19) Two batteries max allowed on passenger floor, properly mounted and covered, no bungee straps.
Trans coolers allowed if deemed safe, do not use rubber unbraided transmission lines. Gas tank must
be removed and one relocated in front of box.
20) No folding box-sides over. May bolt fenders with six, 3/8 inch bolts to bolt fenders together with 2
inch washer max. No body creasing.
21) Stock steering components, may alter steering shaft from box to steering wheel. Tie rods cannot be
reinforced. May run after market brake/ gas pedal and shifter.
22) If frame bent, must run with bent frame. No frame repairs.
Questions on rules call Chad Boyd: 651-308-5882, Email: Boyd_Chad_Julie@Outlook.com