Drive Shaft Length Comparison

[383Blazer]

Hey everybody,

I recently got a great deal on a Gear Vendor unit, the np205 it was bolted to, and the already shortened driveshaft for too good of a deal to pass up!

I have searched but have not found what the differences is between a square body chevy driveshaft length and a 71 chevy driveshaft length. Some details on both rigs: Standard cab, long bed, 4" lift, small block engine, sm465/np205. I want to know whether both driveshafts are interchangeable, that way the shortened driveshaft will bolt into my 71 without modifications when I install the GV unit. I did not get a chance to find out what year the square body is and my truck is parked at my parent's house so I can't get the details myself.

Thanks in advance!

Cody