drive shaft destroyer

[roger acord]

destroyed a rear driveline saturday night. the k5 has a np208 and a 6 in. lift. how do i figure out the length for the new one remember,,,,,,Built Not BOUGHT!!!

 

[Stomis]

Load the bed til the springs are flat. Measure from yoke to yoke.

Lift the rear of the truck until the rear axle is at full droop. Measure from yoke to yoke. Your driveshaft needs to cycle between those two lengths.

Its not much for a rear shaft. Probably just be easier to get a stock shaft measurement from someone with the same truck and add about 1.5 to 2in to it for the lift.

 

[Blue85]

Stuffing and drooping the axle as much as possible is probably the best way to figure it out, but you will be hard pressed to get as much stuff as you would wheeling. You can do the same thing with some simple geometry calculations (remember high school?) to figure out what you need.

HOWEVER, the driveline shops are only going to ask you for the static measurement (i.e. normal ride height). So you'll have to figure out for yourself if you want to spend more for a longer slip joint. I recommend them because the additional overlap makes the splines more durable.

Look at this: http://www.4xshaft.com/MeasuringGuide.pdf

 

[roger acord]

thank you very much!

 

[4X4HIGH]

Stuffing and drooping the axle as much as possible is probably the best way to figure it out, but you will be hard pressed to get as much stuff as you would wheeling. You can do the same thing with some simple geometry calculations (remember high school?) to figure out what you need.

HOWEVER, the driveline shops are only going to ask you for the static measurement (i.e. normal ride height). So you'll have to figure out for yourself if you want to spend more for a longer slip joint. I recommend them because the additional overlap makes the splines more durable.

Look at this: http://www.4xshaft.com/MeasuringGuide.pdf

He is running a 208 t-case so there is no slip in the driveshaft, his uses a slip yoke into the t-case and there are none available with a longer slip.

 

[roger acord]

i appreciate all the help,,,,thank you!