Angled blocks vs. replacing driveshaft after lift

[tx_pwp5]

I just put a 4in lift on my truck (87 supercab 4x4 built 7/87). The helper springs weren't enough so I'm adding explorer leafs to get the height right.

My question is this:

I've heard from multiple sources that after 4 inches or so of lift in the rear, the 1st gen two piece drive shafts can get some vibration in them, and the "easiest" way to fix this is to swap out a one piece shaft from a newer ranger. This involves some clearancing and of course, a trip to the yard.

Why couldn't you just switch out the stock two inch blocks with a 2in angled block to adjust the pinion angle? Wouldn't that correct the driveshaft angle and get rid of the vibration?

I'm probably missing something so if anyone has tried this, please let me know. Maybe the vibration is at the front of the shaft and that won't change with blocks, idk.

Thanks in advance.

 

[scotts90ranger]

The stock blocks are angled, and that's not the issue, sure it helps the rear shaft, but the angle between the shafts is too steep to live long. You want the two shafts to be near straight but having a little angle helps stop vibration to keep the rollers turning. This has all been tried though and still the consensus is apparently to use the longer shaft so give it a shot, it might work or it might not.

 

[tx_pwp5]

The stock blocks are angled, and that's not the issue, sure it helps the rear shaft, but the angle between the shafts is too steep to live long. You want the two shafts to be near straight but having a little angle helps stop vibration to keep the rollers turning. This has all been tried though and still the consensus is apparently to use the longer shaft so give it a shot, it might work or it might not.

Thanks for the insight, I didn't know the stock blocks were already angled. I figured people have tried this before but couldn't find anything on angled blocks through the search function.