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andyh1956 · 04-15-2018, 11:02 AM

My son ran a 3.42 against his LS & he was planning to install 3.90s before it got T-Boned...
The engine was 500 rpm off its low end curve w/ 3.42s & he had a 5.7, your 4.8 would want better than 3.42 s also I would bet..

04-15-2018, 11:02 AM	#7
andyh1956 Registered User Join Date: Mar 2010 Location: thomastown mississippi Posts: 1,261	Re: 12 bolt truck rear. My son ran a 3.42 against his LS & he was planning to install 3.90s before it got T-Boned... The engine was 500 rpm off its low end curve w/ 3.42s & he had a 5.7, your 4.8 would want better than 3.42 s also I would bet..