Toyota 4Runner
1986–89 IFS

Factory gearing, tires, angles and brakes for the 4Runner, 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
103 in wheelbase · 28.7 in front · 40.9 in rear overhang
in
Stock tireP225/75R1528.3 in tall
Axle ratio4.1–4.3Factory, by trim
Crawl ratio49.3:1Best trim: SR5 Turbo 22R-TE (1986-87)
Angles37 · ~21.8 · 22.5°Approach, breakover, departure (~ estimated)
Clearance10.6 in7.7 to 10.6 in by trim
Highway mpg17EPA, 20 with the manual

Tire upgrades, worked out

Deluxe/SR5 22R-E, 5-speed, 4.1s, from P225/75R15
TireHeightUnder the diffsSpeedo at 65RPM at 65Gears for dailyOpen
235/75R1528.9 in+0.3 in64 mph2,637Keep 4.1sOpen →
31x10.50R1531.0 in+1.4 in59 mph2,4564.56Open →
32x11.50R1532.0 in+1.9 in57 mph2,3794.56Open →
33x10.50R1533.0 in+2.4 in56 mph2,3074.88Open →
33x12.50R1533.0 in+2.4 in56 mph2,3074.88Open →
35x12.50R1535.0 in+3.4 in53 mph2,1765.29Open →

Stock turns 2,692 rpm at 65 in top gear. Flotation sizes are nominal; most measure a little short mounted.

Trims

5 we have figures for
TrimTireTransmissionAxleAnglesClearanceOpen
Deluxe/SR5 22R-E, 5-speedP225/75R155-speed manual4.137 · ~21.8 · 22.57.7 inUse →
SR5 22R-E, ECT 4-speed autoP225/75R154-speed automatic4.337 · ~21.8 · 22.57.7 inUse →
SR5 Turbo 22R-TE (1986-87)P225/75R155-speed manual, 4-speed automatic4.337 · ~21.8 · 22.57.7 inUse →
SR5/Deluxe V6 3VZ-E, 5-speed (1988-89)P225/75R155-speed manual4.137 · ~29.7 · 22.510.6 inUse →
SR5 V6 3VZ-E, ECT 4-speed auto (1988-89)P225/75R154-speed automatic4.337 · ~29.7 · 22.510.6 inUse →

~ Estimated from the wheelbase and ground clearance. No maker has published it for this truck yet.

Size

Wheelbase
103 in
Front overhang
28.7 in
Rear overhang
40.9 in
Height
66 in
Body
SUV
Stock tires
P225/75R15

Transmissions and low range

5-speed manual (W56), 22R-E
3.954 · 2.141 · 1.384 · 1 · 0.85
5-speed manual (R151F), 22R-TE turbo
4.313 · 2.33 · 1.436 · 1 · 0.838
5-speed manual (R150F), 3VZ-E V6
3.83 · 2.062 · 1.436 · 1 · 0.838
4-speed automatic (A340F, integrated transfer)
2.804 · 1.531 · 1 · 0.705
4-speed automatic (A340H) with VF1A transfer, V6
2.804 · 1.531 · 1 · 0.705
Low range, rf1a
2.276:1
Low range, a340f-4cyl
2.659:1
Low range, turbo
2.659:1
Low range, vf1a
2.566:1
Low range, vf1a-auto
2.659:1

Axles

Front
Toyota 7.5 in IFS front (passenger-side offset, 27-spline)
Rear
Toyota 8 in solid rear (heavier housing on Turbo and V6)
4.1 ratio
Deluxe/SR5 22R-E, 5-speed, SR5/Deluxe V6 3VZ-E, 5-speed (1988-89)
4.3 ratio
SR5 22R-E, ECT 4-speed auto, SR5 Turbo 22R-TE (1986-87), SR5 V6 3VZ-E, ECT 4-speed auto (1988-89)
Ratios made for it
4.56 · 4.88 · 5.29

Brakes

Front rotor
11.39 in, 289 mm
Front caliper piston
34.0 mm
Rear drum
11.61 in, 295 mm
Rear
drum

Suspension

Front
double wishbone IFS, torsion bars
Rear
leaf springs, solid axle
Rear layout
Leaf springs

Fuel economy

EPA highway, automatic
17 mpg
EPA highway, manual
20 mpg
Rated years
1986–1989, 4WD

Aftermarket bumpers

5 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 4Runner sees how it does on their tires and lift.