jdiddyws6

iTrader: (5)

I just put a yank 3600ss in my car last night, it works great except when the car shifts into overdrive it kind of has a humming noise and a slight vibration at around 35-40. It goes away any higher than that. RPMS are kinda low, and I'm wondering if it's just a bad spot. It has 3.23 gears in it and a tune, but not tuned for the converter.

TheBlackPlague

iTrader: (1)

is it at that specific Mph range? have you tried to see if it still does it in third at 35 to 40?

trans_am_2000

iTrader: (6)

my card did the same thing after getting the tranny rebuilt, when you had it floored it would vibrate bad at the console, and driving easy you couldnt notice it as much but it hummed, turns out that there is a bracket for the tranny that has 3 settings and they had it in the wrong one so it was touching the floor.

jdiddyws6

iTrader: (5)

Yea, it's between 35 and 40 mph id OD only. Does not do it in 3rd

jdiddyws6

iTrader: (5)

Bump for help.converter bolts r not loose

underpressureWs6

iTrader: (17)

i have the same problem that u have, get a trans tune so they can raise the mph when the trans shifts into OD, its like shifting a stick car into too high of a gear when going too slow, i just leave the car in third until i get to 40 mph then shift into OD,