Information provided by:
Joe Garcia
The Resto Rod Shop
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 ½" |
| '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 ½" | 44" | 46 ¼" |
'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 ½" | 48" | 51" | 57 ½" |
'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 |
| 26-39 | Plymouth-Dodge car/pick up | 56-58" |
| 40-52 | Plymouth-Dodge car | 60-62" |
| 29-39 | Chrysler / DeSoto Car | 60" |
| Most Early | Mopar's | 56-62" |
| 25-39 | Chevy Car | 56-58" |
| 26-46 | Chevy Truck | 58-58" |
| 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 ½" |
| 32 & 33-34 | Ford Car / Pickup | 56 ½" |
| 34-48 | 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 | 3,760 |
| Pontiac | GTO | 68-74 | 59.9-59.6 | 3,880 |
| Chevrolet | Corvette | 68-83 | 58.7-59.5 | 3,655 |
| | | 84-95 | 59.6-60.4 | 3,890 |
| Chevrolet | Camaro (Z28) | 76-80 | 61.3-60.5 | 3,820 |
| Pontiac | Firebird (TA) | 76-80 | 61.3-60.5 | 3,900 |
| Ford | Mustang II | 74-79 | 55.6-55.8 | 3,305 |
| | Pinto | 74-79 | 55.6-55.8 | 3,305 |
| Mercury | Capri | 74-79 | 55.6-55.8 | 3,305 |
| | Bobcat | 74-79 | 55.6-55.8 | 3,305 |
| Chevrolet | Monte Carlo | 78-86 | 58.5-58.8 | 3,235 |
| Buick | Century | 78-86 | 59.0-58.8 | 3,700 |
| Pontiac | Grand Prix | 78-86 | 58.9-59.0 | 3,735 |
| Plymouth | Volare | 75-79 | 61.0-60.5 | 3,395 |
| Dodge | Aspen | 75-79 | 61.0-60.5 | 3,395 |
| Dodge | Dart | 76 | 59.2-55.6 | 3,600
|
