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GM TH-700 R4 / 4L60E / 4L65E. This will also retro fit back to all 700R4 units as well. If your transmission has the aluminum piston with 2 lip seals. These pistons are generally a high failure item.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.