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Jeep Wagoneer
SJ 1974–79

Factory gearing, tires, angles and brakes for the Wagoneer, 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
108.7 in wheelbase · 29.9 in front · 44.9 in rear overhang
in
Axle ratio3.54Factory
Crawl ratio22.6:1First × low × axle
Angles33 · 24 · 17°Approach, breakover, departure
Clearance7.7 inFactory figure
Highway mpg11Estimate, not EPA rated

Size

Wheelbase
108.7 in
Front overhang
29.9 in
Rear overhang
44.9 in
Height
66 in
Body
SUV
Stock tires
28.3

Transmissions and low range

GM Turbo Hydra-Matic 400 3-speed automatic
2.48 · 1.48 · 1
Low range, quadra-trac bw1339 (with low range)
2.57:1

Axles

Front
Dana 44 - unverified
Rear
AMC 20 / Dana 44 - unverified
3.54 ratio
All trims

Brakes

Front rotor
11.87 in, 301 mm
Front caliper piston
75.0 mm
Rear drum
11.00 in, 279 mm
Rear
drum (11 x 2.5 in)

Suspension

Front
solid axle on leaf springs
Rear
leaf springs, solid axle
Rear layout
Leaf springs

Fuel economy

Highway, not EPA rated
about 11 mpg
Where it comes from
Road test, conditions not stated (1978 Wagoneer Limited, 2bbl AMC 360 V8)

Every calculator, set up for the Wagoneer

Tire sizeBigger tires: speedo, clearance, angles and brakes.Compare tiresRegearHighway RPM on every ratio and mpg.Pick your gearsCrawl ratioHow slow it creeps, against other trucks.Work out crawlSpeedometerWhat it really reads on new tires.Fix your speedoLinksAnti-squat and what a lift does to it.Check your linksYour rigBuild sheet and measured angles.Start a build sheetLeaderboardsWhere the Wagoneer ranks against every stock truck.See where it ranks

Source: auto-brochures.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.