OK. I've ordered one of the TF 3" lifts with the +2" shocks from L8. After reading through a number of 'lift' threads on this and other forums, I'd like to get your thoughts on replacing my stock driveshafts.

On my short list of upgrades related to this lift, I'm planning to install the extended SS brake lines and ABS sensors, then to see how the truck handles the lift before committing to other suspension and steering component changes.

I've read a lot of 'lift' discussions about upgraded components like the radius arms, pan hard rod, removing the cross member, and changing the watts linkage, but not much about the driveshafts.

As of right now, I'm running the stock D2 driveshafts...I rebuilt the front drive shaft with grease-able u-joints and new centering ball as outlined in the 'how to' section of this forum, but have not done anything to the rear driveshaft other than greasing it at each oil change.

Assuming that both front and rear are in reasonably good condition right now, given that the shafts may be OK with a 2" lift, can someone quantify how much of a difference the 3" lift is going to cause in stress on the shafts? (I just want to get some idea how soon I need to plan to upgrade them to more HD shafts.)