Are the rear ends of a 90 Ram d 150 and a 72 Ram 150 Custom interchangeable?

Tiny
GTOMASTER
  • MEMBER
  • 1990 DODGE RAM
  • 175,000 MILES
Im not really a truck person but my dad has 2 dodge ram pickups. He drives the 90 (3.9-V6) but the rear end is going bad. We've been searching for a replacement but we haven't had any luck. I was looking at the rear end on the 72 and I noticed that they look very similar. Will we be able to swap one for the other? If so what do we need to do?
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Wednesday, October 5th, 2011 AT 2:31 AM

2 Replies

Tiny
GTOMASTER
  • MEMBER
  • 2 POSTS
Both have 12 bolt heads.
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Wednesday, October 5th, 2011 AT 2:40 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,170 POSTS
We only recommend direct fit parts. I assure you there are differences. If the vehicle is a 4x4, you need to get the same gear ratio too. What is wrong with the differential you have? Is it a bearing issue?
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Wednesday, October 5th, 2011 AT 2:40 AM

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