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rear end swap

  • Thread starter Thread starter MyBoTy
  • Start date Start date
M

MyBoTy

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I have a pair of late C-3's that I'm putting together for my girlfriend and myself. Hers is a '79 with auto and mine is an '81 with a stick. Mine has numbers matching engine and tranny that will both be pulled and stored in favor of a rebuilt Super T-10 and a 500 or so horse 406. Her rear end gears have been changed to 3.90's which is way too high for the amount of highway miles we'll be putting on it. Mine is stock 3.08. Can I swap rear ends straight across or is this gonna open a big can or worms? I also plan to go to heavy duty U-joints and probably have hardened stub axles in the one with the stick. Any recommendations on which U-joints or stub axles to use would be appreciated!
 
Welcome to CAC!


The 79 differential mounts to the top crossmember, while the 81 mounts to the dana crossbar. So I don't think that the differentials can be swaped between those two year models.

Bill
 
The 80-82 carrier and support are not inter-changeable with earlier years.

Dave
 

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