TexasSS903 Posted December 26, 2015 Report Share Posted December 26, 2015 Been having tranny problems ever since I built motor! 2003 AWD SS putting down 430 rwhp! Keeps knocking out pump and tranny has been built with billet hub, corvette servo , Borg internals , 3400 yank SS series converter, sfi flex plate! What can I do or do I need to do a 80 swap! Quote Link to comment Share on other sites More sharing options...
1BAD2K Posted December 26, 2015 Report Share Posted December 26, 2015 Why keep wasting money on 60's? You could get an 80, do a mild build with dual feed mod and run a trucool 40k cooler and be done lol. I'm make upper 400's at the wheels for now, and my 80e doesn't even flinch lol. Quote Link to comment Share on other sites More sharing options...
Time2Kill Posted March 15, 2016 Report Share Posted March 15, 2016 I have a 4L60E behind a 408 for about 30K miles before it finally took the pump out. Swapping to an 80e is the best route. For the 4L80E swap, you need a new input gear for the transfer case (contact me, I have them), the 4L80E, modified trans crossmember, small wiring harness change, and a segment swap on your tune. Quote Link to comment Share on other sites More sharing options...
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