Spindle lift + SOA, and then shims + new driveshaft

[karl_burns]

All righty.
So I installed my spindles and did an SOA about 2 years ago. It vibrated slightly ever since I lifted it, but whenever I asked questions, most people simply said "All lifted trucks drive a bit like that" so I didn't think much of it...
Recently, I've been getting a TON of vibration from my truck, and I've traced it to the driveshaft. I took it to a guy today who told me I'd need to get shims installed in my leaf springs (mine are from a 99XLT 4 door) to help correct the angle, and then I would need a new, longer (by about 1.75 inches) driveshaft.
All you people with spindle lifts and SOA: Have y'all had to do this as well?
I did NOT measure my angles before the lift (I know... I know....) but I can always do them now.
Hokie: I remember talking to you when you were thinking about this, and you were thinking about installing a spacer plate into your drive line. What happened?
Thanks all!
Karl Burns

 

[karl_burns]

So I ended up getting some shims installed by a local shop.
WISH I would have known to NOT have my SOA brackets welded on at a 0 degree angle! It makes total sense to have them at 2-3 degrees, but I remember reading on here 0 degrees. Oh well. I'm still ahead of the game cost wise..... Now on to buy a new, longer drive-shaft......
If you search for SOA spring perch shim angle, I hope you read this!
Karl

 

[rabbit91]

Reading this now over 11 years later, thanks for the info! going with 2.5* shims. If i remember or someone posts after i install them, ill update this thread