Ford F-250
1980–86 4x4

Factory gearing, tires, angles and brakes for the F-250, and what the usual upgrades do to it. Every number is from the maker's own figures unless the calculators say otherwise. A few figures here are still waiting on a factory document; the calculators mark them.

Use this truck in the calculators

133 in wheelbase · 28.66 in front · 46.6 in rear overhang

Angles38 · 20 · 27°Approach, breakover, departure

Clearance8.1 inFactory figure

Highway mpg12EPA, 14 with the manual

Trims

3 we have figures for

Trim	Tire	Transmission	Axle	Angles	Clearance	Open
F-250 4x4 (8.00x16.5D tires)	30.0	4-speed manual, 4-speed manual, 3-speed automatic	—	38^* · 20^* · 27^*	8.1 in	Use →
F-250 SuperCab 4x4 (opt. tire) (8.75x16.5E tires)	30.4	4-speed manual, 4-speed manual, 3-speed automatic	—	38^* · 20^* · 27^*	8.1 in	Use →
F-250 HD 4x4 (9.50x16.5E tires)	31.2	4-speed manual, 4-speed manual, 3-speed automatic	—	38^* · 20^* · 27^*	8.1 in	Use →

* The maker doesn’t publish this figure for that trim, so it shows the closest trim’s (same tire where we have one), or a close relative’s that shares the same body or front end. Hover the star to see which.

Size

Wheelbase: 133 in to 155 in
Front overhang: 28.66 in
Rear overhang: 46.6 in
Height: 80 in
Body: Pickup
Stock tires: 30.0, 30.4, 31.2

Transmissions and low range

4-speed manual (New Process NP435, 6.69 low): 6.69 · 3.34 · 1.79 · 1
4-speed manual (BorgWarner T-18): 6.32 · 3.09 · 1.69 · 1
4-speed manual (BorgWarner T-19, HD Ford): 6.32 · 3.09 · 1.68 · 1
3-speed automatic (Cruise-O-Matic / SelectShift, C6): 2.46 · 1.46 · 1
Low range, np208: 2.61:1
Low range, bw1345: 2.72:1

Axles

Front: Dana 44 TTB (F-250) / Dana 60 solid (F-250 HD, unverified)
Rear: 5,300-lb (F-250) / 6,250-lb (F-250 HD) full-floating rear; model names unverified

Brakes

Front rotor: 12.56 in, 319 mm
Rear drum: 12.00 in, 305 mm
Rear: drum

Suspension

Front: Twin Traction Beam on leaf springs (heavy models used solid Dana 60)
Rear: leaf springs, solid axle
Rear layout: Leaf springs

Fuel economy

EPA highway, automatic: 12 mpg
EPA highway, manual: 14 mpg
Rated years: 1984–1986, 4WD

Aftermarket bumpers

2 listed

Makers almost never publish angles, bottom heights or how far a bumper tucks, so these fill in as owners measure them. Measured yours? Add it on the rig page and every owner of this F-250 sees how it does on their tires and lift.

Front 1

OER 1980-86 Ford F150/F250/F350, Bronco Front Bumper w/o Impact Strip Holes, Chrome (TR17757S1)$281

Rear 1

Affordable Offroad fullfordrear Ford F250/F350 Superduty 1978-1998 Elite Rear Bumper Full Size60 lb · $885

Every calculator, set up for the F-250

Tire sizeBigger tires: speedo, clearance, angles and brakes.Compare tires RegearHighway RPM on every ratio and mpg.Pick your gears Crawl ratioHow slow it creeps, against other trucks.Work out crawl SpeedometerWhat it really reads on new tires.Fix your speedo LinksAnti-squat and what a lift does to it.Check your links Your rigBuild sheet and measured angles.Start a build sheet LeaderboardsWhere the F-250 ranks against every stock truck.See where it ranks

Source: oldcarbrochures.com.

Use at your own risk. These calculators are here to help you plan and to inform your decisions, not to sign off on a build. Many numbers are estimates worked out from factory figures, and some factory figures are not yet confirmed. Check every number against your own truck, its manuals and a qualified shop before you buy parts, cut, weld, lift, regear or drive on it. Long Range Desert Tools is not liable for anything you do based on these calculators or their results. The full terms are in our policies.

Ford F-2501980–86 4x4