Best Rear end - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

11-03-2021, 11:33 AM

#26

cwcarpenter98

Senior Member

Join Date: Jan 2018

Location: Hickory Flat, GA

Posts: 4,488

Re: Best Rear end

Quote:

Originally Posted by SCOTI

3.73's x 30" tires x.70 final gear is approximately 1900rpm @ 65mph & 2050rpm @ 70mph.
At 80mph, it calcs out to 2340rpm.

I'll have to check my actual numbers again once I'm back on the interstate. And I really need to fix my speedo, but I don't want to pull the back end off the transmission

__________________
Christian Carpenter

1963 C10 - Frankentruck 283, Muncie 3 speed with overdrive

Overdrive wiring here

1963-ish truck bed trailer - Half-Wit

1981 C10 - Penny 305, th350 --> Soon to be 350, Saginaw 4 speed

1995 Dodge Dakota Sport

"I'll put it simple: if you're going hard enough left, you'll find yourself turning right." - Doc Hudson

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