6l90 gear combo
#1
6l90 gear combo
I am trying to do a 6l90 w/3.90 gear. I learned in a different forum that this might not ba a good combo because of the 1st gear in the tranny. Can anyone elaborate? And how do I find the most performance oriented gear to that would work with this tranny. Looking at at possible 2500 stall
#2
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iTrader: (4)
Re: 6l90 gear combo
In what? what weight and gear?
It is a different ballgame than the 4L60 ratios for sure.
If you're building a third gen, you may want to look at what the 5th gen got with the 6L80. They were heavier with slightly taller tires, so a stock Gen IV LS V8 / 6L80 combo into a third gen with similar rear gear would drive out nicely. Drive one.
I have a 5.3 truck w/ 6L80, 3.08 gear and 31.5" tires. I skipped over the 4L60 trucks on purpose and have no regrets. I could run this combo in a third gen w shorter tires and be happy for drivability. The 1st gear is gling to make the ideal stall lower than what works with a 4L60.
It is a different ballgame than the 4L60 ratios for sure.
If you're building a third gen, you may want to look at what the 5th gen got with the 6L80. They were heavier with slightly taller tires, so a stock Gen IV LS V8 / 6L80 combo into a third gen with similar rear gear would drive out nicely. Drive one.
I have a 5.3 truck w/ 6L80, 3.08 gear and 31.5" tires. I skipped over the 4L60 trucks on purpose and have no regrets. I could run this combo in a third gen w shorter tires and be happy for drivability. The 1st gear is gling to make the ideal stall lower than what works with a 4L60.
#3
Re: 6l90 gear combo
Sorry about that it's a 91 Camaro RS stock form right now it has a small block 350 with a 700R4 342 posi 4th gen rear disc brakes proportionate valve upgrade and it's going to have C6 18 inch 10 1/2 wide in the back 9 in the front chrome five spoke wheels absolutely no racing no AC. Soon to have an all aluminum LS3 the 480 horsepower version and like I said I planned on using aa 3.90 gear
Last edited by budget builder; 12-31-2023 at 01:33 PM.
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jmd (12-31-2023)
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