rear end and driveshaft question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Speedy1968 · 05-22-2002, 04:48 PM

I recently swapped my 12 bolt rear end out for a dana 60. I'm going to be putting the driveshaft back in soon, but before i do, I want to make sure it will fit. Do i need to have it shortened because of the different rearend, and by how much? or is it the same driveshaft length for the 12 bolt and dana 60?
Thanks,
Dave

**PICKMUP** · 05-23-2002, 02:45 AM

Measure three times & cut once! Be careful of different ujoint/yoke sizes from one to the other. You are probably going to have to build a custom driveshaft or find the correct one that comes out of a 3/4T PU with the same trans as yours. Be sure and get the center bearing mount, it will also be different.

Vince M · 05-23-2002, 08:03 PM

If you measure from the center of the axle to the center of the yolk it would give you a pretty good idea on the difference between the two. As mentioned though you might have to change the yolk to match your universal and/or get a conversion universal joint. Maybe everything will just fit. When I swapped mine out I didn't have to do anything.

------------------
Orlando,FL
72 Chevy 4x4 3/4T CustomCamper w/SB 406

05-22-2002, 04:48 PM	#1
Speedy1968 Registered User Join Date: Oct 2001 Location: Canton, MI Posts: 55	rear end and driveshaft question I recently swapped my 12 bolt rear end out for a dana 60. I'm going to be putting the driveshaft back in soon, but before i do, I want to make sure it will fit. Do i need to have it shortened because of the different rearend, and by how much? or is it the same driveshaft length for the 12 bolt and dana 60? Thanks, Dave __________________ 68 long fleetside 67 camaro 83 monte carlo 88 SS monte carlo

05-23-2002, 02:45 AM	#2
PICKMUP "Trucks with Class" Join Date: Jul 2000 Location: OLYMPIA, WA, USA Posts: 8,158	Measure three times & cut once! Be careful of different ujoint/yoke sizes from one to the other. You are probably going to have to build a custom driveshaft or find the correct one that comes out of a 3/4T PU with the same trans as yours. Be sure and get the center bearing mount, it will also be different. __________________ Email: frankeham@comcast.net Phone: 360-956-7170

05-23-2002, 08:03 PM	#3
Vince M Senior Member Join Date: Apr 2000 Location: Orlando, FL Posts: 1,076	If you measure from the center of the axle to the center of the yolk it would give you a pretty good idea on the difference between the two. As mentioned though you might have to change the yolk to match your universal and/or get a conversion universal joint. Maybe everything will just fit. When I swapped mine out I didn't have to do anything. ------------------ Orlando,FL 72 Chevy 4x4 3/4T CustomCamper w/SB 406 __________________ ............................................................ 68 Chevy CST SWB w/LS1, carb & 700r4. Golden Anniversary clone with a few improvements.



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