motorman524

Just purchased adjustable uppers. Wish me luck

5.0kid

good luck with that man hope it solves it

kweb288

very nice man! hows the trans working for you? along with everything else u bought from me haha

motorman524

^Fraggin AMAZING man!!! I LOVE this transmission! When I the installed the k member and coilovers I also did Steeda superlites in the rear with new rear housing bushings and control arms(already installed subframe connectors). Launching improved by 100% over what it was previously. I put a PRO 5.0 shifter on it and swapped out the trans mount for a Lakewood poly mount as well.

Just need to get this vibration figures out so I don't break anything!

68CSTANG

This is going to sound dumb, but what type of vibration is it? Is it constant? Mine started having one like every 4-5 sec, and it would last about a second, almost like a rotating feeling, but not very fast. It started doing that after the first set of gears/control arms. I figured the DS was out of balance, but this thread got me thinking that it did't do that until I switched gears/control arms.

Anyhoo, maybe Ill see you at Midnight Madness if I get my junk back together. Good luck

motorman524

It is a real fine vibration that gets harder and harder and harder as you pick up speed. At 80 it is very bad.

Not gonna make Midnight madness this round. I have 2 bad injectors and I'm dealing with this(parts ordered).

I did gears a while back, before I did my control arms and before the manual trans swap. Didn't notice the vibration then.

67mustang302

When you set the pinion angle remember that the diff and trans need to be equal and opposite. Meaning if the diff is set at -2, then the trans needs to be at +2. The reason is the DS does NOT rotate at a constant speed, the u joints generate an angular velocity that causes the DS to speed up then slow down, the speed up and slow down and so on. That means if the u joint angles at both ends are the same they speed up and slow down at the same rate...if they're not the same then each end of the driveshaft speeds up and slows down at a different rate, and it causes the DS to twist and untwist, generating a vibration. You can set the trans angle by simply shimming the trans mount, I use washers on mine.

Also keep in mind that ALL DS's vibrate to some degree, and the more gear you have the more it vibrates...but certain DS types vibrate less such as aluminum, then CM steel, then MMC and finally carbon fiber.

AdderMk2

wow, thats SOOO wrong

5.0kid

yeah about that im with adder

http://www.baselinesuspensions.com/info/pinionangle.htm

there ya go, and make sure its on a level surface

AdderMk2

the pamphlet that I got frome baseline describes it a bit more "in depth" than their site... maybe one of these days i'll scan it and post it