did they BOTH come with 7.5" rear ends? some say yes, some say no, whats the deal? does anyone know for sure?

 

ive only seen 7.5's in both

 

Yes.

 

depends, on whether they are gt,gt-s,IRS,solid axle, so no they did not all come with 7.5's. just read the codes on the litle plate in the engine bay, then go here: http://www.toysport.com/, then tech info, then differential list.

Example: F372 = 7.5" 3.58 final ratio 2 pinion

 

well, meaning the 79-81 solid axle ones....

 

no some were 6.7, again, read the code on the car and it will tell you all you want to know.

 

My 83 gts had a 6.7 (ra6x) my bros 85 gt had a 6.7 as well.. i Know he got a mki supra 7.5 rear end for his.. I got a mkii rear subframe with diff to upgrade mine to a 7.5"

the supra was a package of the celica back then.. so celicas might have 7.5 as well

If you can read the vin plate, here is a list of the codes to tell what gear it had.. its usually the last 4 on the id plate (not vin) http://www.celica-gts.com/resources/...ial_codes.html

 

but the thing is, ive had everyone tell me the 79-81 SUPRAS all came with 7.5" regardless if motor choice, except for bill....