6L80 swaps - The 1947 - Present Chevrolet & GMC Truck Message Board Network

thor · 01-31-2011, 06:47 PM

As I searched I did not find an all-inclusive thread speaking directly to the 6L80 and 6L90 transmissions. I thought it would be a good idea to start collecting information regarding GM's 6 speed transmissions, similar to the LSx swap thread. I know many people have questions so this would be a great place to begin answering them. If we get enough info, perhaps this can become a sticky.

The gear ratios for the 6L80 and 6L90 are:

1st: 4.027
2nd: 2.364
3rd: 1.532
4th: 1.152
5th: 0.852
6th: 0.667
Rev: 3.064

01-31-2011, 06:47 PM	#1
thor Registered User Join Date: Apr 2008 Location: Redmond, WA Posts: 679	6L80 swaps As I searched I did not find an all-inclusive thread speaking directly to the 6L80 and 6L90 transmissions. I thought it would be a good idea to start collecting information regarding GM's 6 speed transmissions, similar to the LSx swap thread. I know many people have questions so this would be a great place to begin answering them. If we get enough info, perhaps this can become a sticky. The gear ratios for the 6L80 and 6L90 are: 1st: 4.027 2nd: 2.364 3rd: 1.532 4th: 1.152 5th: 0.852 6th: 0.667 Rev: 3.064 __________________ 1972 Chevy Blazer CST.....Project: Polished Turd



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