so yea i just bought a new truck the 06 chevy ext silvy and i was comming from a 99 chevy stepside singal cab ok here is the prob i love the new truck to death but the 2nd gear just dose not pull as hard and the old one is it just me or what. thanks for the input

 

Its probably just something different in the tune, because the 06' trans is the same as the 99' internally.

 

my 04 did the same thing,it would fall on its face after the 1-2 shift, stock pcm was pulling lots of timing. got a mail order tune and it pulls hard.