Any place to find different gears for the rear online wouldn't mind swapping for few more mpg any place selling them or rebuilt units? junk yards around here come up with nothing

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2004 Infiniti G35 3.5L 6mt Coupe 73K miles 25.6mpg ytd
2001 Green Audi TT 225 AWD Roadster 71K 6sp 30.9mpg >>STOLEN<<
1982 300D Turbo 231K 120hp? 28.1mpg YTD

different ratio rear ends appeared in the 123 and 126 that will bolt in with no modifications. Some of the 126 rear ends will fit with some moderate modifications. Putting in a higher ratio will lower engine speed resulting in better economy and lowered engine wear and noise. The trade off is more leasurely acceleration and downshifting earlier on a steep hill. Generally when you swap the rear end in a 123 you need to swap the speedo to match it for correct readings.

Tom W

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.