drive shaft questions

well i want to lift my cj5 as high as possible so i need a longer driveshaft. so i have a 67 jeepster.. is that longer. will it fit

 

You'll have to measure both and see. Depending on how much lift you do, you may not need it.

 

im sure ill need it. from what i understand 5 inches is about as much as the stock shaft can stand... im rearching my springs for 2 inches, 2 1/2" shackles, probbly 3 inch blocks, and SOA. so around 11 or 12 inches of lift. ill need a shaft at least 6 inches longer so it will be like a 5" lift on the shaft. if anyone knows.. i would love to know what shafts are around that much longer or anywhere close and which ones will fit.

 

12 inches huh? what kind of jeep is this?

 

I think the drive shafts will be the least of your problems.

 

With that much lift your rear driveshaft is going to be almost verticle.

With the 4.5" lift is did, I had to lengthen my rear driveshaft. I also had to tilt the rear pinion up and go to a CV style drive shaft. Even with all of that, I am almost out of flex on the drive shaft when the rear axle is at full droop.

 

thats odd to have to do all of that with just 4 1/2" of lift. most feel its ok for SOA with a stock shaft. and im thinking that will be my best bet for a while. i will have my old very flexable flattened leafs on top of my axles haha.. it will be much smoother than an addaleaf.and it will be almost free.
i think having them rearched and then soa will be too much angle for my stock shaft, thats around 7 inches and i would love to know the stock length of shackles, hole to hole, on the cj 5 i beleive its a 78

 

I really think that a SOA with a stock shaft is not gonna leave you any "wiggle room". When I lifted my Wagon (SUA) I found a yoke at the junkyard that was a couple of inches longer than mine. This gave me a little insurance with the stock shaft. Keep in mind the Wagon is a street vehicle - Not gonna be much flexing going so I'm not worried. If you take your SOA off road with a stock drive shaft it may pull out or you won't have full contact on the splines and it will break.

 

it seems it will only be around 4 inches of lift though with stock leafs and soa but mabye ill just rearch them we had one many years ago that 4 1/2" lift from rearching and shackles it did well so mabye i wont do soa