Replaced 4l80E still shifts terrible..

[brock1949]

http://www.fullsizechevy.com/forums/general-discussion/technical/283468-2003-4l80e-replaced-trans-still-shifts-like.html#post2795633

Sorry i linked it to the technical, need help fast not sure where to post it!

Thanks

[Tbi-MAX]

did you change the shift solenoids?

[brock1949]

i didn't yet, i've heard it might be them, but then had another guy tell me they didn't think so..

I'm not 100% sure on how they would control how hard it would shift i don't completly understand how it works.

Should i try that next?