Tech Tips

Easy Fitment for This Popular 4-Speed Transmission Swap Jordan from G Force. Introducing our 4L80 Mock Up Transmission Block. 4L80 was a very popular 4-speed offered from 91 to 2013 in the heavy-duty GM trucks. As you might know, this...

Swap Block™  Transmission Mock Up Blocks Hey Guys. Jordan from G Force.  Today I'm going to introduce 3 new transmission mockup blocks that we just released. In front of me, I have the 4L80, the 6R80, and the 8HP70. As...