6 inch lift driveshaft questions/survey

[Barlow]

I just got the lift installed and had to slip the front driveshaft apart about 1.25 inches and the rear 1.5 inches. Aside from getting the driveshafts lengthened by that much, what have others done to fix driveshaft problems with 6 inches of lift. This is not a daily driver, but a frequent driver with no plans to do any off roading.

 

[cybrfire]

Sometimes a 1" driveline spacer in the front can be used.

Some axles have longer pinions. Not sure what you have currently though.

 

[Barlow]

Forgot to put all that. I have the stock 12 bolt in rear with stock 10 bolt infront auto with np203 fulltime tcase and auto tranny

 

[MTBLAZER89]

Longer driveshafts and you may have to adjust the angle of the pinion on the rear axle.

The pinion angle should match the T-case output angle.

Here is a good writeup.

http://www.pirate4x4.com/tech/billavista/PR-shaft/index2.html

 

[Dafey]

Forgot to put all that. I have the stock 12 bolt in rear with stock 10 bolt infront auto with np203 fulltime tcase and auto tranny

I have the same thing,and on just a 4" lift I had to have my rear D/S made 1 to 1 1/2 inches longer and the front looks to short too.About 1" to short.... And I need to put some shims on the rear too ( Im just to lazy )

 

[xenomarine]

don't mean to hijack, but what would a normal shop charge for lengthening or even shortening of a pair of driveshafts?

 

[Barlow]

I was quoted $125 per driveshaft to lengthen them. Thats one of the reasons I was wanting to find what other people have done that works. I was just curious if the obvious solution is what works the best.

 

[xenomarine]

i've heard mixed reviews about adapters but if you're not wheeling or putting down massive power i wouldn't see a huge problem with it. it's just more stuff to make sure is torqued to spec

 

[K85 Octane]

i've heard mixed reviews about adapters but if you're not wheeling or putting down massive power i wouldn't see a huge problem with it. it's just more stuff to make sure is torqued to spec

x2
space the front at least
craigslist or ebay or whatever for a spacer
the rear is up to you

Someone correct me if I'm not thinking right, please but spacers and lengthening shafts are ok as long as you aren't stuffing the axles? Meaning, the axle moves up enough, it is returning to it's original position before the DS change. Shoving the new length into the transfer case.

 

[Barlow]

Looks to me like it would be better to make the front driveshaft longer instead of adding a spacer. From what I can tell longer would mean less angle while a spacer would move the double cardan closer to the axle and increase angle. But Ive got a lot to learn so that's why I called on those with experience.

 

[xenomarine]

yeah that's true, but unless you run a fulltime t-case, your front dshaft won't be spinning unless you have hubs engaged and / or your transfercase in 4hi or lo. so it isn't an issue because you likely won't be using it at high speeds, where the vibe from bad angles is noticable.

also the small amount of angle added from a 1" spacer won't be enough to cause a huge problem unless your angle is already questionable.

i feel like someone reading that will have no idea what i'm saying so if you need clarification, just say so. also correct me if i'm wrong, it'll just be a learning experience for me

 

[Barlow]

I decided to go ahead and get both lengthened. I've got the fulltime tcase so even though the spacer wouldn't make much difference on the angle, I want it as small as possible anyway. After removing the shaft I found the cv joint was shot and rattling, so they are going to replace that as well, so I guess it was good I went ahead and did it that way.

 

[phreddei166]

Just had front driveshaft lengthened 1.25 inch. $ 150 at Montrose Machine in Wakefield MA. Looks and works good.

 

[walla2k5]

I did a little clearance grinding to the CV also.

 

[Dafey]

100$ in Roswell ,NM, for each.