4l60e / 4l80e to much hear say !

[thelsx]

I got it on mine its a single cab..... why didnt you get a newer 4l80 like from a 2004

[txarkitekt]

Ok im tired of always hearing somthin different about doing the 4l80 swap i hear its going to slow my truck down, the gear ratios in it suc and it dont last much longer then the 4l60 i actually just bought a 4l80 to do the swap but it has a 6bolt torque converter if i just change to a 3 bolt stall will that work ?? also please clear up some of these roomers for me cause im having a hard time doing somethin to my truck that will make it slower
Thanks Guys

What motor you have now?

[lownslo]

ok on the swap there are several write ups on this. Personal experience the 80 is a better trans, while it may slow you down out of the hole it shifts faster and firmer and gives you a better trap speed.

I would say do the swap for reliability cause the 60 will go.

Now on the tq bolt question, the 4l80 stock converter has a 6 bolt pattern that uses the 6.0/4l80 flexplate with the spacer and new bolts. I recomend using arp converter bolts cause they are cheap and are a better bolt than the stock converter bolt. You also need to add a vss sensor to the pcm for the output vss sensor on the 4l80 that you 60 did not have. Also you need to re-pin two wires on the main trans harness, and do a segment swap. Don't forget a dipstick, yoke for d.s. and new crossmember.

2004 and later are the better 4l80's from what i understand but i haven't researched that very much.

Good luck!