My '78 J10 had the quadratrac transfer case then it was switched over to a Dana 20. the rear axle offset is off to the side a bit and I'm wondering if it's going to vibrate.
I drove it home and didn't notice it but it had goofy tires and a lift kit so I'm not sure if I would have anyway. now I have the engine and everything out rebuilding it.
anyone have experience with this? if it's a problem would a double joint at the rear axle cure it?
Rear Axle Offset
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Tatsadasayago
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Re: Rear Axle Offset
Offset of that nature is nothing to worry about. I'd be more concerned with the lift, how it was done and the pinion angles.
1977 Cherokee Chief - The Blair Jeep Project III
A collection of parts flying in close formation
A collection of parts flying in close formation
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REDONE
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Re: Rear Axle Offset
All 78 J10s have offset rear axles, including the ones that came with a dana20, so it should be fine! 
79 J-10 (Honcho Mucho) KE0LSU
304/Performance Fuel Injection TBI/MTA1/SP2P/Magnum rockers
T18/D20/D44s&4.10s/33" Mud Claws
Grizzly Locker Rear
4" front spring drop, 5" rear shackle flip
Chevy style HEI (ECM controlled)
Dolphin "Shark" gauges in a fancy homemade oak bezel
3/4 resto, rotting faster than I've been fixing it.
304/Performance Fuel Injection TBI/MTA1/SP2P/Magnum rockers
T18/D20/D44s&4.10s/33" Mud Claws
Grizzly Locker Rear
4" front spring drop, 5" rear shackle flip
Chevy style HEI (ECM controlled)
Dolphin "Shark" gauges in a fancy homemade oak bezel
3/4 resto, rotting faster than I've been fixing it.
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440sixpack
Topic author - Posts: 332
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Re: Rear Axle Offset
I took the lift out so now it's stock.
They all have that offset? I'd have lost a bet on that. I'll have to say I wondered how they cleared the gas tank with a centered axle so it makes some sense they were offset.
They all have that offset? I'd have lost a bet on that. I'll have to say I wondered how they cleared the gas tank with a centered axle so it makes some sense they were offset.
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Stuka
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Re: Rear Axle Offset
All WT and J-Truck axles have the same offset regardless of the trasnfer case used. Narrow tracks have two different rear offsets.
2017 JKU Rubicon
Pevious Jeeps: 1981 J10, 1975 Cherokee, 2008 JK, 2005 KJ, 1989 XJ
Pevious Jeeps: 1981 J10, 1975 Cherokee, 2008 JK, 2005 KJ, 1989 XJ
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GaJeep94YJ
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Re: Rear Axle Offset
Mine vibrates. Stock height
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Tatsadasayago
- Posts: 3684
- Joined: Thu Aug 28, 2014 2:22 pm
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Re: Rear Axle Offset
You should check output bearings, U-Joints, Pinion shaft slop and thrust angles to find the cause.GaJeep94YJ wrote:Mine vibrates. Stock height
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The most common cause is bad U-Joints.
1977 Cherokee Chief - The Blair Jeep Project III
A collection of parts flying in close formation
A collection of parts flying in close formation
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Stuka
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Re: Rear Axle Offset
Also make sure the u-joints are in the proper phase.GaJeep94YJ wrote:Mine vibrates. Stock height
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2017 JKU Rubicon
Pevious Jeeps: 1981 J10, 1975 Cherokee, 2008 JK, 2005 KJ, 1989 XJ
Pevious Jeeps: 1981 J10, 1975 Cherokee, 2008 JK, 2005 KJ, 1989 XJ