LBZ: 2-3 and 4-5 neautral shift built trans

[Antsdmax]

hi have just had a trans built here with a suncoast kit billet convertor etc after we thought the c3 clutches where destroyed (ended up looking fine) as it was what feels like neautral shifting 2-3 shift and 4-5 shift once trans temp gets to 65-70 degrees celcius. Anyway after the rebuild the truck is doing the exact same thing.. any help would be great no codes at all come up and it shift so smooth and runs great up till those Temps i don't know what else to check

 

[Antsdmax]

anyone

 

[WVRigrat05]

Is it just a delayed shift during part throttle or all the time?

 

[Antsdmax]

part throttle only, under full throttle to 75% ish its still perfect but as stated only at those temps. no codes

 

[WVRigrat05]

Mine has a delayed shift under part throttle all the time like that, like a 1 second delay, but up top and loaded it's a crisp perfect shift, not sure what causes it, I think my TCM needs tuned as it did it stock as well.

 

[Antsdmax]

yeah but this bangs in its like a short delay then bam it goes in i hate it... i have ATP tune in the TCM matched to the ECM tune it did it on the stock tune aswell

 

[Antsdmax]

i hope maybe evan or mike might be able to help

 

[WVRigrat05]

Yeah mine doesn't do that, hopefully they can help you. How long has it been built?

 

[Mike L.]

i hope maybe evan or mike might be able to help

Need more info. You can call me at the shop tomorrow.

 

[Antsdmax]

thanks mike. itll be in the afternoon as at work at the moment