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BigShoe24 · 02-09-2011, 11:16 PM

I am installing an 4L80E with an LS3. Here is what I believe is going to work. This is GM p/t #12621399 and comes with spacer. I actually just got mine today. I started a thread on here that I plan to document every step.

02-09-2011, 11:16 PM	#5
BigShoe24 True Addiction Join Date: Nov 2005 Location: FTL Posts: 415	Re: 4L80E Install --- just the basics... I am installing an 4L80E with an LS3. Here is what I believe is going to work. This is GM p/t #12621399 and comes with spacer. I actually just got mine today. I started a thread on here that I plan to document every step. Attached Images __________________ RCC