gear humming

[InitialB]

I just got 3.73's installed yesterday on my 88 GT and there was a erratic humming coming from them at around 75mph when I accellerate. it has signinficantly quieted down since I have been driving around but its still there are they just going through the break-in or should I contact the shop that did it?

 

[InitialB]

bump

 

[darthcual]

Could be two things. Either the shop didnt set the lash right, or your drive shaft got turned and thats what is making the vibration. I would think it was the latter. Hope that helps.

DC

 

[InitialB]

so would that also cause the humming, and if the driveshaft was turned what needs to be done? does it need to be re-aligned?

 

[squeeeg]

I bet they set the lash wrong. I would bring it back and tell them to fix it. I doubt it is because the driveshaft is turned. I can't see that making any difference whatsoever. I didn't on mine, i have never paid attention to which way it went back on.