plskthompson
Newbie
- Joined
- Mar 5, 2011
- Messages
- 3
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So I've done searches both here and google as well as asked on multiple pages on facebook and have yet to find the answers to a few of the questions I have regarding the 4l80 swap into my 88 c3500. I'll be going from a th400 to the 80. I already have the U.S. Shifts controller I need on order as well as the transmission ready to go in. What I'm needing to know is do I need the neutral safety switch, black box, on the shift arm? Also, are there any modifications I need to make to the shift lever to make it work correctly? Lastly, at least for the moment, has anyone ran AN lines for the cooler vs the hard lines to aid in installation?