Do I need a CV Driveshaft?

[Coontail]

Sorry for the silly question but I'm not 100% sure what to do

Driveline angle is 6.5° down

Pinion is 8° up

I'm not sure if 2.5° off-plane qualifies as parallel enough for a traditional driveshaft

 

[Bent77]

The concern for the CV is really at the transfer case

Have a few pictures, or a bit more detail like lift, t case, yada?

 

[Coontail]

6 suspension lift

14 bolt rear

Np241c

33" from the pinion to the spline

This is the only picture I have currently

 

[Bent77]

Yep, you’ll want a CV on the rear for sure

 

[Coontail]

Thanks for the help!

 

[sweetk30]

yep wheel base length for the shorter shaft and lift height together = c/v shaft as said .

since you got a 241 do a fixed yoke kit and then a super duty ford shaft for a cheep spicer 1350 c/v head and 1350 at the yoke for the 14ff . and just make sure the flange you get for the fixed yoke can hook to he s/d ford shaft . and thats a f250 - f350 front drive shaft mid 2000's truck . i did one for a guy in a blazer on almost 6" lift and she was smooth at 80+ mph road test after i had it shortened and set the pinion right before i burned on the new spring perches . that info / pics are in the build thread below in my sig line . click the I built this m1009 link or this in blue here .

 

[Coontail]

I was just about to ask something along the lines of that, I couldn't use the reverse slip with a CV right?

I'll have to price them out but Tom wood seems to charge only $220 for a brand new custom shaft. With the Ford shaft, after adjusting the length, I would think I might be pretty close to that mark

Do you remember the diameter of the Ford shaft?

 

[nvrenuf]

Just to add, I don’t know my angles but with 7” I’d lift and the rear driveshaft at 35” long, I wasn’t able to shim the vibration out of my Blazer - CV shaft made it silky smooth.