i have an 2002 ecsb 5.3 with bolt ons and a 4l60e. i have a tci 3000 stall converter. the trans started slipping, so i bought tci race clutches and steals with the seals gaskets and new band. also bought tci billet servo, monster sun shell, and transgo shift kit. the guy that rebuilt the trans found some other broken parts, replaced them and installed all my new parts. the shift kit was installed set at the very firm shift. allen futral bumped my line pressure up when i had the truck dyno tuned (before the trans went out almost two years before) but with all these new parts the trans shifts no harder then before. any suggestions as what could be wrong? could it need to be retuned?

 

hard shifts equal broken output shafts on a 60E.. ask me how i know.... haha.. i think that how big you drill those holes in the plate has alot to do with how hard it shifts.. no telling what he drilled them out to...

 

get allen to fiddle with your tune some more

 

thatnks, im talked to allen yesterday bc the trans isnt shifting right from second to third he said the shift timing was off. so it goes to him next week and hopefully he can fix that.