Biggest lift on a one-pc. driveshaft?

[power03stroke]

Im deciding between the 4 and 6 inch lift kits but ive heard that adjustments have to be made for the 6 inch lift, when your have a one-pc. drive shaft?

Im leaning toward a 4 inch procomp lift.

Anyones input would be great.

[CSIPSD]

Anything BIGGER the 6" then yes... Go for the 6" if you dont need to get in and out of the tool box or anything like that.

[bigcountrysg]

You have to do adjustments and modifications for 4 inch lift and a 6 inch lift. Even a 4 inch lift requires either lengthing of the driveshaft or obtaining a driveshaft spacer. Either way you would need to get the driveshaft and spacer ballanced together. If you just want a little extra ride hieght I suggest the 4 inch. If you want ground clearance and ride hieght then get the 6 inch.

[power03stroke]

how much do the driveshaft spacers cost and what kind would you recommend.
ive read on the manufactors websites that u need to lengthen/space only 6 and above.

[bigcountrysg]

i recommend spacing anything over 2 inches, reason being is the more you lift, the less in driveshaft yoke is in the transfer case. I don't use spacers, I have a shop lengthen the driveshaft or build a custom driveshaft.

[willypscustoms]

i have a one piece drive shaft and 6" lift and have had to do nothing to it. you can lift it to 6" and be fine, if you go higher like 8" is when you need to lengthen the drive shaft but you should be fine if your going to do the 6" lift you will not have to do anything to the drive shaft.

[99Smokin73Stroker]

A lot of guys seem to be real particular about that. There is quite a bit of room for the yoke to travel. I looked at my 99 which had a 4 inch lift and there was no spacer and no evidence of any shaft lengthening. A lot of the lift kits should tell you what is necessary.

[CSIPSD]

Originally Posted by bigcountrysg

i recommend spacing anything over 2 inches, reason being is the more you lift, the less in driveshaft yoke is in the transfer case. I don't use spacers, I have a shop lengthen the driveshaft or build a custom driveshaft.

There is no drive shaft yoke in the T-case on our trucks, there is a slip joint on the drive shaft.

[straycat]

About the only thing I would be looking into up to 6'' is a set of degree wedges to tilt the diff to a better feed angle for the driveshaft, less chance of binding the shaft on the bumps that way.

Gord.