need rear drive shaft lenght 4x4 5speed sclb dually

[Jordank520]

I need rear drive shaft length 4x4 5speed sclb dually. im going to do a 80 swap on my truck and ive been told ill need to shorten my drive shaft, but my buddy that has a srw 80 under his truck has the same size drive shaft that's in my truck that only has a 70. (i converted mine to 5 speed)

 

[Chrisd91]

I have a SRW I can measure, shouldn't be different

 

[Badbrad3701]

What transfer case ?

 

[Jordank520]

I have a hd case now. I had a LD case originally. I did swap over to a srw dana 80 my drive shaft works but is 1" longer than what come in a truck with a hd case and a 80 rearend