Chassis & Frame

Full-depth "C" channel frame construction, crossmembers, sill lengths, standard and extended cab wheelbase dimensions, front bumper options, towing provisions, and frame accessories.

Configurator Cross-Reference – Red italic text indicates the topic location(s) in the Configurator.

Frame Construction (Frame – Frame Rails)

Frame Construction Standard

Straight full-depth, "C" shaped side member rails measuring 11" × 3.5" × .38" @ 21.5 lbs./ft, 120,000 psi min yield. Section Modulus (SM): 18.61 in³. Rated RBM: 2,233,200 in. lbs. minimum per rail from front axle to end of frame. Features:

25' length ladder type frame with 34" nominal width
Fabricated and reinforced tubular cross members
Fastened with torque prevailing SAE Grade 8 flanged head nuts and bolts
No rivets in frame assembly
No projections above top flange in identified CA/CT dimension

Crossmembers Standard

Recommended frame cross member spacing: 42"–48". Specify minimum "AF" frame requirements.

Inner Channel Liner Optional

Inner reinforcement channel, 10.12" × 3.0" × .25" thick. Increases Section Modulus to 28.08 in³, RBM to 3,369,600 in. lbs., weight to 34.3 lbs./ft. Required for: combination of snowplow and 25+ cy high compaction rear loader; chassis with greater than 25 cy rear loader; front loader over 40 cy total capacity; low profile (long) front loader body with tip-to-dump operation. Available on 25 ft. and 30 ft. frame rails.

Frame Sill Lengths (Frames – Frame Sill Length)

25' Frame Sill Length Standard

Std. Cab wheelbases up to 206" single axle or 194" tandem axle
Crew Cab wheelbases up to 194" single axle or 182" tandem axle

30' Frame Sill Length Optional

In lieu of 25' standard, for:

Std. Cab wheelbases 176"–248" single axle or 176"–248" tandem axle
Crew Cab wheelbases 176"–248" single axle or 176"–242" tandem axle

Wheelbases (Model – Wheelbase)

All wheelbases for single and tandem rear axles are in 6" increments. Measured from centerline front axle to centerline rear single axle and centerline of rear tandem. "AF" tolerance ±1" unless otherwise specified. Wheelbase options other than shown are not offered. Wheelbases shorter than shown require Engineering approval and additional charges to relocate air tanks and fuel tank.

Standard Cab Wheelbase Dimensions

Wheelbase (in)	"AF" 25 ft Sill (in)	"AF" 30 ft Sill (in)	Comments
128	115	N/A	Shortest single axle (SA) wheelbase
134	109	N/A
140	103	N/A	Standard SA WB on 25 ft Sill
146	97	N/A
152	91	N/A	Shortest tandem axle (TA) wheelbase
158	85	N/A
164	79	N/A
170	73	N/A	Standard TA WB on 25 ft Sill
176	67	N/A
182	61	N/A
188	55	115
194	49	109	Maximum TA WB on 25 ft Sill
200	43	103
206	37	97	Maximum SA WB on 25 ft Sill
212	N/A	91
218–248	N/A	85–55	Max SA & TA WB on 30 ft Sill at 248"

Extended Cab Wheelbase Dimensions

Wheelbase (in)	"AF" 25 ft Sill (in)	"AF" 30 ft Sill (in)	Comments
128	100	N/A	Shortest SA wheelbase
140	88	N/A	Standard SA WB on 25 ft Sill
152	76	N/A	Shortest TA wheelbase
170	58	N/A	Standard TA WB on 25 ft Sill
176	52	112
182	46	106	Maximum TA WB on 25 ft Sill
194	34	94	Maximum TA WB on 25 ft Sill
200–248	N/A	88–40	Max TA WB on 30 ft Sill at 248"

Front Bumper (Chassis – Front Bumper)

Flat Bumper – Painted Steel Standard

3/16" thick steel; formed 14.75" tall channel with 3" flanges, full width of cab; struts with shear blocks from bumper to frame; 21.0" ground clearance. Bumper extends 4" forward of cab front skin and 72" from center of front axle. Cut-back version available for front loader arm clearance.

FLAT BUMPER, ALUMINUM – OPTIONAL Optional

.25" thick aluminum; formed 14.75" tall × 94" wide channel with 3" flanges; struts with shear blocks; 21.0" ground clearance. Bumper extends 4" forward of cab front skin and 72" from center of front axle. Powder coat black finish.

Flat Bumper w/ Cut-Back – Steel Optional

3/16" thick steel; 14.75"H × 94"W; 10" cut-back ends for front loader arm clearance.

Swept Wing Bumper – One Piece, Painted Steel Optional

.25" thick steel one-piece bumper; 12.13"H × 96"W; full width of cab; 16.56" forward of cab skin; struts from bumper to frame; 20.5" ground clearance. Front tow eyes below bumper with snowplow hitch. Wing sweeps rearward 11.87". Available with or without mud guards; center or full top decking options.

Towing Provisions (Chassis – Tow Pins/Hooks Options)

Front Tow Loops Standard

Two (2) tow eyes mounted under front bumper.

Front Tow Pins Optional

Two (2) recessed pins mounted through front of frame with access through bumper.

Frame Options

Specify / Clear Frame Requirements Optional

Specific clear frame requirements for body installation, inside or outside of frame rails. Not required if Special Battery Box & Fuel Tank options are specified.

Snowplow Hitch Optional

One-piece swept-back bumper extended 16.56" forward of cab front skin, power up/down lift cylinder, electric control on dash. Includes hydraulic piping, valves, plow lights and directional turn lights. Does not include hydraulic pump, pump mountings, or plumbing to reservoirs. Cab tilt limited to 60° with snowplow hitch. Requires 20,000 lb. front axle and suspension.

Note: Pump requirements are 3–5 gpm flow, 400 psi down, 2,000 psi left/right, up and main pressure. Bumper is painted Black (N0001) at no charge. There is an up-charge for any color other than standard Gray or Black. Tow-eyes are included below the bumper with snow-plow hitch.

Control options available:

4-Way Controls (Up/Down/Left/Right), Pin Style Only — Optional: Left/right fitting connections are provided under front bumper, between plow hitch brackets. Customer to make connections to plow.
2-Way Controls (Up/Down), Pin Style or Socket Style — Optional: All controls & connections provided.

Notes: Tow eyes are included below frame and bumper with snow-plow hitch. Cut out in bumper provides greater hitch, and cab tilt angle for improved engine & FEPTO access. Optional components may be shown.

Front Skid Plate Optional (Chassis – Front Skid Plate)

Formed 10 ga steel, black powder coat finish.

FEPTO Crossmember Optional (Frame – Frame, FEPTO Crossmember)

Added crossmember in front of engine; includes hydraulic pump mounting bracket and vibration dampeners.