Suspension Measurements

REAR SUSPENSION
FRONT SUSPENSION

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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
 
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The following  list of extensive information was contributed by R. Welch:
 

Original Vehicles 
Rear Suspension Width (Flange to Flange)
Year
Classic Vehicles
Width
26-39 Plymouth-Dodge car/pick up  56-58"
40-52 Plymouth-Dodge car 60-62"
26-39 Chrysler/DeSoto Car 60"
Most Early  Mopar's 56-62"
25-39  Chevy Car 56-58"
26-46 Chevy Truck 56-58"
40-48 Chevy Car 58-60"
49-54 Chevy Car 58-60" 
47-54 & 55 1st Series Chevy Truck 60-62" 
Most Early Buick,Olds, Pontiac 58-61"
28-31 Ford Car/Pickup 57 1/2"
32 & 33-34 Ford Car/Pickup 56 1/2"
35-48 Ford Car 57-60"
35-41 Ford Pickup 56-60"
49-58 Ford Car 57-58"
49-56 Mercury 57-58"
49-51 Mercury 61"
64 Falcon 58"
67 Cougar 60"
55-59 Chevy Pickup 62"
 
 
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"
 
 


FRONT SUSPENSION INFORMATION

 
Track Width of Popular Donor Car Clips
Manufacture
Model
Years
Track Front/Rear
Curb Weight
Chevrolet
Nova
68-74
59.8-59.6
3,770
Buick
Apollo
68-74
59.1-58.8
3760
Pontiac
GTO
68-74
59.9-59.6
3880
Chevrolet
Corvette
68-83
58.7-59.5
3655
 
 
84-95
59.6-60.4
3890
Chevrolet 
Camaro (Z28)
76-80
61.3-60.5
3820
Pontiac
Firebird (TA)
76-80
61.3-60.5
3900
Ford
Mustang II
74-79
55.6-55.8
3305
Pinto
74-79
55.6-55.8
3305
Mercury
Capri
74-79
55.6-55.8
3305
 
Bobcat
74-79
55.6-55.8
3305
Chevrolet
Monte Carlo
78-86
58.5-58.8
3235
Buick
Century
78-86
59.0-58.8
3700
Pontiac
Grand Prix
78-86
58.9-59.0
3735
Plymouth
Volare
75-79
61.0-60.5
3395
Dodge
Aspen 
75-79
61.0-60.5
3395
Dodge
Dart
76
59.2-55.6
3600
 
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