axle length differences amc model 20 rear

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   Axle length differences AMC model 20 rear
Would the axles from a 1984 CJ fit the AMC Model 20 in a 1969 Javelin?
What are the typical or correct lengths for the axle shafts
24" and 26 1/2" ? 30" and measurements to backing plate?
Any help?

Well so far my research the CJ had a 5 x 5.5 bolt pattern
where the Javelin is a 5 X 4.5 bolt pattern for wheel studs

Wheel to Wheel CJ wide track     54.5"

Rear axle widths. Measured from wheel mounting surface to wheel mounting surface. Assume "approximate" widths, +/- 1/2". AMC’s use a 43 1/2” spring perch to perch spacing for all leaf spring models from 1964-78.
 Width   Year         Model

56.50   1958-83    American, Hornet, Gremlin, Concord, Spirit

56.50   1968-70    Javelin, AMX

56.50   1964-66    Classic, Ambassador, Marlin, Rebel

60.00   1967-78    Rebel, Marlin, Ambassador, Matador, Pacer

60.00   1971-74    Javelin, AMX

Don't seem to be very interchageable

Edited by badaboom - Apr/01/2017 at 10:00pm

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badaboom Members Profile Send Private Message Find Members Posts Add to Buddy List AMC Apprentice Joined: Apr/07/2010 Location: CO, USA Status: Offline Points: 142	Post Options Post Reply Quote badaboom Report Post Thanks(0) Quote Reply Topic: axle length differences amc model 20 rear Posted: Apr/01/2017 at 9:38pm
	Axle length differences AMC model 20 rear Would the axles from a 1984 CJ fit the AMC Model 20 in a 1969 Javelin? What are the typical or correct lengths for the axle shafts 24" and 26 1/2" ? 30" and measurements to backing plate? Any help? Well so far my research the CJ had a 5 x 5.5 bolt pattern where the Javelin is a 5 X 4.5 bolt pattern for wheel studs Wheel to Wheel CJ wide track 54.5" Rear axle widths. Measured from wheel mounting surface to wheel mounting surface. Assume "approximate" widths, +/- 1/2". AMC’s use a 43 1/2” spring perch to perch spacing for all leaf spring models from 1964-78. Width Year Model 56.50 1958-83 American, Hornet, Gremlin, Concord, Spirit 56.50 1968-70 Javelin, AMX 56.50 1964-66 Classic, Ambassador, Marlin, Rebel 60.00 1967-78 Rebel, Marlin, Ambassador, Matador, Pacer 60.00 1971-74 Javelin, AMX Don't seem to be very interchageable Edited by badaboom - Apr/01/2017 at 10:00pm
	Keep'em on the road, screw cash for clunkers

WesternRed Members Profile Send Private Message Find Members Posts Add to Buddy List AMC Addicted Joined: Aug/03/2010 Location: Australia Status: Offline Points: 5799	Post Options Post Reply Quote WesternRed Report Post Thanks(0) Quote Reply Posted: Apr/02/2017 at 7:06am
	CJ is heavily offset to one side if my memory is correct. 68/69 Javelin is about 1/2" wider than the 70 Javelin and the Gremlin/Hornet.

tufcj Members Profile Send Private Message Find Members Posts Add to Buddy List Supporter of TheAMCForum Supporter of TheAMCForum Joined: Jul/10/2007 Location: Watkins, CO Status: Offline Points: 4088	Post Options Post Reply Quote tufcj Report Post Thanks(0) Quote Reply Posted: Apr/02/2017 at 11:35am
	NOPE. Narrow track Jeep was 51.5" wide, widetrack (82-86) was 54.5" wide. CJ axles are too narrow. Don't forget that the Jeep lug pattern was 5 on 5.5" and the centering flange much larger, so even if you drilled for the smaller pattern, I'm pretty sure you'd have to machine the centering flange completely off. Bob tufcj
	69 AMX 74 Javelin AMX 67 Rogue If you need a tool and don't buy it... you'll eventually pay for it... and not have it. Henry Ford

oldironneverdies Members Profile Send Private Message Find Members Posts Add to Buddy List AMC Fan Joined: Nov/15/2016 Location: Arkansas Status: Offline Points: 17	Post Options Post Reply Quote oldironneverdies Report Post Thanks(0) Quote Reply Posted: Apr/05/2017 at 7:45pm
	I am building a 54.5 wide track cj model 20 for my 69 javelin. 2" narrowed rear end for more tire clearance. Using the javelin 20 outer flanges on the cj axles. Keeping it all amc. and replacing the weak model 15 in my car