3.43 vs 3.73 rear end gear
40

Asked by maint Sep 05, 2016 at 12:35 AM about the 2000 Chevrolet Silverado 1500 LS Extended Cab RWD

Question type: General

Would the 373 gear be too much for my truck with a 4.8 engine?
I commonly pull a 6x12 open trailer or 18ft bass boat.

3 Answers
70,915

Kelly answered 8 years ago

no...the 3.73 is fine...more tq..but less top end..and you dont need top end...do you have the 3.43 in it now..i think you do ? and then theres the speedo gear to mess with unless you figure out 60mph is now really 70mph on the speedo

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40

maint answered 8 years ago

I'm wanting to change gears because when towing these light loads my truck has a hard time maintaining hwy speeds, trans is constantly changing even with towing button pushed.

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