I had my 2002 tahoe in to the dealership for a extended warranty steering shaft clunk and they warranteed the shaft and the steering is nice for now. The tech noted that when road testing, the transmission clunks on 2-3 upshift! Should I let them check into this under warranty or should i leave it because of the LQ4 swap, might notice 6.0L stamped on the block when tranny is out! Or will they reflash the PCM that nelson just did for me. Always something going on, nothins ever good! Thanks Guys