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Toyota Tech: Pickup and 4Runner Part Specifications
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Below are the specifications for different parts used on Toyota pickups and 4Runners. Part designations are given for standard items such as engines and transmissions. When no standard name is known, the application is noted. This is a living document that is meant to be all inclusive, but certainly there are details that have been missed. If you have information that you wish to have added to this document, please email Harry Wagner. Contributions of pictures listed as "Coming Soon" are appreciated, as they are needed to complete this document. Further information can be found listed by model year or VIN.



Body Styles

From left to right are the first, second, and third generation pickups.

From left to right are a Trekker, a 1st generation 4Runner, and a 2nd generation 4Runner.

Engines

From left to right are a 20R, 22R, and early model 22RE.

Model
Year
Max Horsepower
(@ RPM)
Max Torque
(@ RPM)
Cylinders
Displacement (ccm)
Fuel Delivery
Compression
Bore (mm)
Stroke (mm)
20R
1979-1980
90@4800
122@2400
4
2189
Carburetor
8.4:1
88
89
22R
1981-1987
96@4800
129@2800
4
2366
Carburetor
9.0:1
92
89
22RE
1985-1988
105@4800
137@2800
4
2366
Electronic Fuel Injection
9.3:1
92
89
22RTE
1986-1987
135@4800
173@2800
4
2366
Turbocharged, Electronic Fuel Injection
7.5:1
92
89
22RE
1989-1995
112@4600
142@3400
4
2366
Electronic Fuel Injection
9.3:1
92
89
3VZE
1988-1995
150@4800
180@3400
6
2958
Electronic Fuel Injection
9.0:1
87.5
90
3RZFE
1996-Present
150@4800
177@4000
4
2693
Electronic Fuel Injection
9.5:1
95
95
5VZFE
1996-Present
190@4800
220@3600
6
3378
Electronic Fuel Injection
9.6:1
93.5
82

From left to right are a late model 22RE, 22RTE, and 3VZE.


Transmissions

From left to right are a A340H and A340F (first picture), L43, L50, L52, and G52 transmissions.

Type
Year
Found Behind
Gears
Low Gear
Length
T-Case Shifting
Notes
L43
1979-1980
20R
4
3.67
20 3/4"
Top
 
L45
1981-1982
22R
4
3.93
???
Top
Integral bell housing.
L50
1981-1982
22R
5
3.93
???
Top
Integral bell housing,
input bearing prone to failure.
L52
1983
22R
5
3.93
???
Top
Integral bell housing.
G52
1984-1987
22R
5
3.93
25 1/4"
Forward
Front seal retainer uses 8 bolts. 
G54
1984-1987
22R
5
3.93
25 1/4"
Forward
 
A340F
1984-1999
22RE, 22RTE
4
2.80
???
???
 Found on vehicles with manual hubs and V6 models after '96.
A340H
1988-1995
3VZE
4
2.80
???
Mechanical Linkage on Side
Found on vehicles with ADD, transfer case integral to transmission.
W56
1985-1995
22RE
5
3.93
25 1/4"
Top (85-88)
Forward (89-95)
Front seal retainer uses 7 bolts. 
R151F
1986-1987
22RTE (pickups only)
5
4.31
25 1/4"

Top (w/ Bucket Seats)
Forward (w/ Bench Seats)

Can be identified by round rubber plug on the bottom of the bellhousing.
G58
1989-1995
22RE
5
3.93
???
Top
Found of vehicles with ADD. 
R150F
1988-1995
3VZE
5
3.83
???
Top
 

From left to right are the G52, G58, W56, R151F, the plug used to identify the R151F transmission, and R150F transmissions.

Transfer Cases

Model
Year
Type
Shifter
Found Behind
Gear Reduction
Splines
Notes
RF1A
1980-1995
Gear Driven
Forward
G52, G54, W56 (89-95), R151F (with bench seat)
2.28
21, 23 (behind R151F)
Can be identified by the 7 bolt rear cover.
RF1A
1979-1991
Gear Driven
Top
L43, L45, L50, L52, W56 (85-88), R151F (with bucket seats)
2.28
21, 23 (behind R151F)
Can be identified by the 7 bolt rear cover.
VF1A
1988-1995
Chain
Top
R150, G58
2.57
23 (behind R150), 26 (behind G58)
Can be identified by the 5 bolt rear cover.
VF2A
1984-1989
Chain
Mechanical Linkage on Side
A340F
2.57
???
 
A340H
1988-1995
Chain
Electronically Controlled
A340H
2.66
???
Hydraulic transfer case, transmission and transfer case cannot be seperated.

From left to right is a stack of RF1A transfer cases, the difference between forward shifting and top shifting transfer cases, and a VF1A transfer case.

Axles

Photo courtesy of Evan Mills
From left to right is an '82 solid front axle, '85 solid front axle, and typical IFS axle and suspension.

Type
Year
Gearing
Width
Ring Gear Size
Shaft Size
Spline Count
Notes
Solid Front
1979-1985
3.90, 4.10, 4.30, 4.38
55 1/2"
8"
1 5/16"
30
Axle housings received more gusseting over the years.
Solid Rear
1979-1985
3.90, 4.10, 4.30, 4.38
55"
8"
1 5/16"
30
4.38s only available in 1980, 3.90s only available in 1981, 8" drums.
IFS Front
1986-1995
4.10, 4.30, 4.56, 4.88
58 1/2"
7.5"
1 1/8"
27
4.10s standard for manual transmissions, 4.30s standard for automatic transmissions.
Solid Rear
1986-1995
4.10, 4.30, 4.56, 4.88
58"-58 1/2"
8"
1 5/16"
30
10" rear drums, V6 and turbo applications used stronger third member with larger bearings and bigger third member, coil sprung 4Runner axles are 1/2" wider than pickup axles, factory 4.88s available in vehicles equipped with automatic transmissions starting in 1992, but the pinion is moved closer to the ring gear than on all the other 3rds. This makes it so they can use a standard thickness ring gear instead of an extra thick one. This "thin" 4.88 gear is only made by Toyotas.
Solid Rear
1995-???
???
58 1/2"-60"
8"
1 5/16"
30
Tacoma axle uses the same brakes and third member as previous pickup axle, somewhere during Tacoma production the rear axle changed from 58 1/2" to 60".

Photo courtesy of Evan Mills
From left to right is a leaf sprung solid rear axle, 4 cylinder (foreground) and V6 third members (background), and a 4Runner coil sprung solid rear axle.

Steering Boxes

Type
Year
Notes
Push-Pull
1979-1985
Used on solid axle trucks. Displays quirky steering characteristics when used in lifted applications. J-arm and drag link are prone to breakage in extreme applications.
Crossover
1986-1995
Used on IFS trucks but ideal for crossover steering on solid axle equipped trucks.

The push-pull box that comes stock on solid axle trucks is on the left. On the right is the more desirable IFS steering box.

Brakes

Year
Master Cylinder
Calipers
Rotors
Notes
1979-1985
13/16" Bore
Two Large Pistons, Two Small Pistons
Solid
8" rear drums. 
1986-1995
13/16" Bore
Two Large Pistons, Two Small Pistons
12" Vented
15/16" and 7/8" master cylinders also reported to have been used, 10" rear drums.
1988-1995
1" Bore
Four Large Pistons
12" Vented
Larger brakes found on V6 trucks, 10" rear drums.

Photo courtesy of Evan Mills
On the left is a rotor and caliper from a solid axle truck. in the middle is a rotor and caliper from a V6 powered IFS truck, and on the right is a solid axle equipped with IFS calipers and FJ-40 rotors.

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