Are there drive shaft extentions beside the spacers everyone sells. It would seem to be better to lengthen the shaft than add spacers. What does everyone think?
 

Driveshaft spacers are, as I understand it, a cheap way to make stock driveshafts work.

Ideally, it's best to get a driveshaft that is longer. They put the U-joints as close to the ends of the driveshaft as possible which actually reduces the sharpness of the working angles of the U-joints.  Whether that small difference in the working angle of the U-joint is significant can be debated.

Practically speaking, most folks can't afford dropping a bunch of money for custom-length driveshafts.  That's why just about every vendor offers driveshaft spacers to solve the problem.

I've have had a set on my truck since 2001 and have had no problems.

I'll be the first to admit that I don't wheel nearly as much as most of you. 90 percent of my driving is on the road and not flexing the suspension off road.  The biggest problems I have had with my spacered driveshafts are worn u-joints and loose bolts from removing and reattaching the rear driveshaft when flat-towing - neither of which do I attribute to the spacers I use.

Bottom line: The Ideal World cost money.  Spacers don't.  They work for me.

Anyone else have thoughts on this?

Well you can get longer yokes from trailtough.com

they are


   Trail Tough's extended slip yokes Extended slip yokes available 1" or 2" longer than stock.  These can be used with the stock shaft portion of your driveline and do not cause an increase in u-joint operating angle as do the spacers.

1" slip yoke
Item # SES-401 Price $65.00 each - exchange

2" slip yoke
Item # SES-402 Price $65.00 each - exchange

I run the spacers with about 6 or 7 inches of lift and have had no problem they came with my lift from sky-manufacturing.com