F-Series 4L85E Transmission Parts

A real-world guide to 4L60 transmission specs, strength, and swap tips.

Check out these tips on T-5 transmissions!

This resource contains a transmission pan shape ID chart and other tips to help with identifying GM transmissions.

We show you how to keep that old GM transmission when swapping in an LS engine. Our LS swap adapter kits make it easy!

In this Tech Tip, John answers a customer question about what would be needed to swap some additional power in place of his anemic 233c.i. Ford.

Learn how to replace a fuel sending unit. Our fuel gauge sending unit guide and installation video covers all you need to match your fuel sender and gauge.