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REAR SUSPENSION

The following is a general list of rear ends and their dimensions to help narrow the search for a possible candidate to replace the torque tube rear end or just get a better set of gears for highway driving.

Advance Design Trucks seem to be using rear ends with widths ranging from 58"- 62". I'm not sure of the Task Force width ranges at this time.

Contributing information were Bob Welch, J Forbes and various locations throughout the Web and Automotive Magazines.

Rear Axle Measurements

MEASURED ACROSS WHEEL MOUNTING SURFACE
56 1/2"71-77 Ford Maverick 8"
57"71-74 V-8 Mavericks 8", All '75-77 6's & 8's Maverick 5 Lug 8", 49-51 Ford, 57-59 Ford 9"
57 1/4"64 1/2 - 65 Mustang
58"78-88 Mid sized GM Car, Malibu/Monte Carlo (82 up Metric Studs), 80 Granada & Lincoln Versailles, 67-70 Mustang/Cougar/Fairlane, Regal with 10 bolt axle, S-10 P.U., 65-67 Nova
58 1/2"Ford Grenada
59"68-83 Corvette
60"55-64 Chevy Car, 67-69 Camaro, 64-67 Chevelle, 68-74 Nova, 71-73 Mustang/Cougar, 84-95 Corvette
60-61"64-69 1/2 ton 2wd Chevy/ Some GMC 6 lug rear end 12 bolt Coil spring set up Possible gear ratio's 3.70
62"64-77 Chevelle, 73-76 Torino, 89 Trans Am

 

70 2wd 6 lug rear end 12 bolt Possible gear ratio's 3:08, 3:40, 3:73
70-81 4wd 6 lug reared ...............................................................

71- Newer 2wd trucks use a 5 on 5 lug pattern
71-76 Full Size Cars " "" "" "

60" 60's GMC and some Chevy's Dana 44 or Dana 60 with leaf springs 6 lug, Gear ratio's 3.21 to 3.92. GMC V-6 used a 3.21 Dana 44 used a standard chevy 1310 yoke, Dana 60 used the heavy duty yoke which takes the larger 1350 yoke.

 

Approximate rear end widths measured from backing plate to backing plate.
Add Width to compensate for drums as follows:
4" - 5" for small cars 5" - 6" for intermediate cars 6" - 8" for large cars
48" - 49" 50" - 51" 52" - 53"
'71 Colt
'72 Cricket
'72-75 Datsun Pickup
'72-73 Mazda
'65 Ram American
'74 Valiant
'28-40 Ford , '57 - 59 Ford
'62 Buick Skylark, '67 Chevrolet Six
'67 Mustang Six , '68 AMX
'69 Javelin Six , '70 dodge
'70 Duster , '71-77 Maverick
'71 Comet , '71- 72 Pinto
54" -55" 56" -57" 58" - 59"
'39 -48 Chevrolet, '68 GTO
'41 -48 Ford, '68-72 Chevelle
'55 -57 Chevrolet, 68-69 Fair lane 6 or 8
'66 Falcon, '69 Chevrolet
'67 Mustang V-8, '69 Firebird
'69 Cougar, '71 -73 Nova
'73 Ventura, '73 Mustang
'36 Plymouth, '54-56 Ford Pickup
'67 Lincoln, '69 Dodge
'69 Dodge Van, '71 Torino
'72 Cougar, '74 Pontiac
'49 Plymouth, '61 Chevrolet Impala
'65 Cadillac, '66 Buick Wildcat
'66-67 Chevrolet Big Car, '72 Charger
'69 Oldsmobile 88, '72 Chrysler
'72-73 Torino

 

STOCK CENTER TO CENTER SPRING PERCH DISTANCE
25" 39" 42" 42 1/2
'68 - 72 Chevelle '71 Colt
'73 Mazda
'68 -71 Fairlane/Torino
'49-51 Ford
'69 Chevrolet
'69 Nova
'71 - 72 Pinto
'73 Ventura
43" 43 1/2" 44" 46 1/4"
'65 Ram American
'64 1/2-'65 Mustang
'67 Mustang
'70's Ford Grenada
'69 Firebird
'70 Dodge
'71-77 Maverick
'70 Duster
'70 Nova
'71 Comet
'72 Dart
'72 Cougar
'74 Valiant
'57 Ford
'67 Chevrolet Six
'68 AMX
'69 Javelin Six
'69 Dodge
47 1/2" 48" 51" 57 1/2"
'39 -48 Chevrolet
'67 Chevrolet big car
'72 Charger
'72 Chrysler
'69 Dodge Van '69 Ford Van '67 Lincoln

 

Original Vehicles
Rear Suspension Width (Flange to Flange)
Year Classic Vehicles Width
26-39Plymouth-Dodge car/pick up56-58"
40-52Plymouth-Dodge car60-62"
26-39Chrysler/DeSoto Car60"
Most EarlyMopar's56-62"
25-39Chevy Car56-58"
26-46Chevy Truck56-58"
40-48Chevy Car58-60"
49-54Chevy Car58-60"
47-54 & 55 1st SeriesChevy Truck60-62"
Most EarlyBuick,Olds, Pontiac58-61"
28-31Ford Car/Pickup57 1/2"
32 & 33-34Ford Car/Pickup56 1/2"
35-48Ford Car57-60"
35-41Ford Pickup56-60"
49-58Ford Car57-58"
49-56Mercury57-58"
49-51Mercury61"
64Falcon58"
67Cougar60"
55-59Chevy Pickup62"

 

Donor Vehicles Front and Rear
Suspension Width (Flange to Flange)
Year Classic Vehicles Width Front
    Width Rear
74-79 Ford Mustang II/Pinto & Mercury Capri/Bobcat 55 ½" 55 ½"
71-77 Ford Maverick with 8" axle 56 ½"
75-80 Ford Granada with 8" axle 57 ½"
64-66 Mustang 57"
67-71 Mustang 59"
72-73 Mustang 60"
67-69 , & 60" Camaro 60"
64-67 Chevelle 60"
55-64 Chevy car 60"
65-67 Nova 58"
68-72 Nova 60" 60"
78 & up Monte Carlo, Regal, etc. with 10 bolt axle 58" 58"
68-72 Chevelle with 10 bolt axle 61 ½"
89 Trans AM (Disc brake) 62"
76-80 Camaro/Firebird 61 ½" 60 ½"
68-83 Corvette 58 ½" 59 ½"
84-95 Corvette 59 ½" 60 ½"
Early 70's "A" body (Dart/Duster) with V8&3/4 axle 58"
"E" Body (Cuda) with V8&3/4 axle 58"
Dodge Dart 59" 55 ½"
Plymouth Volare & Dodge Aspen 61" 60 ½"
71 Blazer (6 lug) 63 ¾"
75-78 Granada 9" (43" perch to perch) 52 ¼"
75-78 Maverick 9" (43" perch to perch) 56 ¼"
81-87 Olds Cutlass 58 ½"
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