Gear ratios - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Ziegelsteinfaust · 07-05-2024, 08:22 AM

I am swapping rear ends in my truck going from 4.88 with a Detroit locker to a 3.08 open rear end.

The truck is a 73 C10 with a gen2 LT1 with a carb and full bolt ons. The transmission is a th700r4, and 31" street tires.

I am worried I may be going to far. Since I wanted 3.42, but they are rare to find on the budget I have to play with. Since I won't be able to do anything in the rear end for a year or switch tires. Partially to lower it further.

How do you expect it to be as a driver. Or am I just over thinking it.

07-05-2024, 08:22 AM	#1
Ziegelsteinfaust Registered User Join Date: Dec 2012 Location: Temple City Posts: 3,628	Gear ratios I am swapping rear ends in my truck going from 4.88 with a Detroit locker to a 3.08 open rear end. The truck is a 73 C10 with a gen2 LT1 with a carb and full bolt ons. The transmission is a th700r4, and 31" street tires. I am worried I may be going to far. Since I wanted 3.42, but they are rare to find on the budget I have to play with. Since I won't be able to do anything in the rear end for a year or switch tires. Partially to lower it further. How do you expect it to be as a driver. Or am I just over thinking it.



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