Hello all, I have a 2000 Silverado 2wd that was lowered with Mcgaughy's 2/4 drop kit with spindles, shackles and hangers. I have a vibration under hard acceleration and between 15 and 20 mph. Anyone else have this issue? Any suggestions? Thanks.

 

Check the Pinion angle?

 

Have not checked that. Not to sound like a goober, but whats the best way to check that and what degree am I looking to be at? Thanks

 

Yep, you're pinion angle is off. I'm 4/6 on a torsion bar set up(read: up higher from the factory than coil spring suspension so probably more like a 5/7) & my pinion angle is pointed up 8-10 degrees. I rode with it like that for a year. I just ordered some 6 degree shims today & hope this will get it close enough.

Here's an article to get you started.
http://www.carcraft.com/howto/91758/index.html

Just google "how to set pinion angle"

 

Here's another good article:
http://www.airridetalk.com/articles/...-enigma_2.html

 

if your an xcab you probly need the carrier bearing spacer kit to correct the pinion angle

 

It is an extra cab. I will try the spacers and check the pinion angle. Thanks for all the help guys.