I've got a Suburban 1500 4WD - H/C, 4.30 gear, living in France.

I've done a 4wD to 2wd conversion.

Rpm transmission Level IV, custom one part aluminium driveshaft.

I've got bad vibrations between 3800 and 4200 rpm on third.

I've made the driveshaft re checked and balances.
The vibration ares still here (less vibration but still here).

I wanted to know about the stock driveshaft options in a stock 2WD :
Are they one piece or two pieces ds ?

I think my driveshaft is too long and flex.

What do you think ? what are your experiences with driveshafts ?

 

Anybody knows if the 2wd suburban 1500, year 2000 is one or two piece DS ?

 

It would be a one piece.

What have you done to the suspension? Done any lowering or lifting?

 

it's lowered ... but I have upper and lower Adjustable Rear Control Arms.

what are the corrects angles ?

 

I could swear I was told 3-5* on a coil suspension but you should still verify that.

Any pics of the DS and/or suspension?

 

http://www.jimobalek.com/pinion-angle/

http://www.carcraft.com/howto/91758/index.html

I found these for you.