I've got a 99' GTP w/ an 01' L67 & a recently busted 99' tranny(Car wouldn't shift or start, & would roll in park). I'm wondering if I can use the base 4t65e cuz its way cheaper & it would give me the 3.29 gearing. I was thinking I could use the HD parts from my bad tranny if I need them.
Can I get away with this or do I need the 4t65eHD? & do I need a certain year, I hear GM switched to quick lock lines on the tranny in 99(mine are threaded)?