Flip kit question
 

I just installed a flip kit on my 91 suburban and there seems to be some vibration when I hit 20mph but it stops after that...what could be causing this? Any help?
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Re: Flip kit question
 

Sounds like driveline (aka "launch shudder") due to U joint working angles.

Take a look at this and let me/us know if you have any specific questions once you get into it:

http://67-72chevytrucks.com/vboard/s...d.php?t=522180

It should help with the thought process for diagnosis, and then setting angles once you get that far.

K

Re: Flip kit question
 

Damn that's alot of info! I'll be getting back to you in a couple of days once I'm done reading! Lol
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Re: Flip kit question
 

Pinion angle?