3" body/drivetrain lift. New Driveshafts or not?
 

Ok, I am interested in doing a 2 or 3 inch body/drivetrain lift. I'm just wondering, are new drive shafts required to do this? I searched for a while and couldn't find an answer. I think this is by far the most cost effective way to get some good clearance for IFS trucks.

Without any other suspension lift your stock ones will be fine. At least the rear one.
Someone else should be able to tell you about the front.

If You're doing a body lift you shouldn't need to change your drivetrain at all, doesn't just the body move up off the chassis?

...true, if you are just doing a body lift...that's not what I'm talking about. The only reason i want the body lift is so that I can also lift the whole drivetrain and gain lots of clearance under the center of the truck. It's pretty common.

What do you need to do to raise the drivetrain?

I didn't have to change anything when I added a 2" drivetrain lift to my '85:
- http://www.4crawler.com/4x4/CheapTri...ft/index.shtml

All depends on how close your shafts are, lengthwise, at the present time. As long as you have sufficient slip yoke spline engagement, should be fine.

Motor mounts and T-case crossmember, and hopefully not lengthen the driveshafts

so do you have to cut the horse collar crossmember out if you don't have dual t cases?

Measure and see:

http://www.4crawler.com/4x4/ForSale/...otorMount5.jpg

http://www.4crawler.com/4x4/ForSale/...l#Introduction