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 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
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"