blkgt50

I have this real bad vibration coming from the rear of my stang. I was thinking that maybe it's the pinion angle, is that possible? If not how can you tell if your axles are bent? I have 3.73 gears with a locker. When I first put the rearend in I didn't have any problems until I changed my u-joints then I started getting this vibration. It doesn't do it all the time under 65 but it will some times and when going around a corner it will go away until i strighten back out.

JD1969

Re-check those U-joints, the pinion angle would need to be way off to cause that.

blkgt50

I have already changed the u-joints once (second set). When I get a chance I'm going to check them again. I was told by ford that i needed to buy the aluminum shaft because of the gears that I'm running. I don't think that's true and that they are just trying to make a sell.

tinman

Check and see if wheel lugs are tightened up. Experience speakin' here.......

blkgt50

checked it, even used a torque wrench just to make sure that they are tight. Anything else?

tinman

Something in the rotating mass is out of balance, time to get into the differental and stuff. Check U-joints too...........

blkgt50

I'm going to the local speed shop and see what they can find. It just weird that i didn't have any of these problems until after I replaced the u-joints. What the chances that it's the it could be my tires?

Tims 88GT

a good chance get them balanced

Tims 88GT

also make shure your drive shaft bolts are tight

blkgt50

I'm going to check that right after I replace my header gaskets. I think that i'm going buy new tires but I was thinking of buying new rims. Right now I have the old 10 hole rims. I would like to find some 16inch pony's. There a place here in town that has a set but they want $400. It's not like they have great tires and they have a little bit of curb rash. I have bought a pair of Monte carlo for (an old chevy) rims with brand new tires on them for less than $350. Any way I will check the everything and see what I can find out.