4X4 rear axle question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ont_guy_38 · 05-03-2011, 08:27 PM

Does anybody know for sure if you can just take the 5 stud axle out of a 2wd and put it in a 4x4 6 stud 8.5 rear end?..

ozark · 05-03-2011, 08:37 PM

Quote:

Originally Posted by ont_guy_38

Does anybody know for sure if you can just take the 5 stud axle out of a 2wd and put it in a 4x4 6 stud 8.5 rear end?..

As long as the 5 stud axle is out of a 8.5 rearend. You probally want to check and see if the brakes and backing plate is the same. I have changed some 2wd rearends to 4wd and discovered the 4wd have bigger wider brakes than the 2wd.

ont_guy_38 · 05-04-2011, 02:22 PM

Thanks for your response...found out the rear I was looking at was from a 91 tho

dropd80s · 05-04-2011, 09:24 PM

I have done this, so it is possible but I wouldn't say its a definite. We swapped all the brakes over too.

msgross · 05-04-2011, 09:26 PM

some 2WD and 4WD's have different width axles though

ozark · 05-04-2011, 10:02 PM

Quote:

Originally Posted by ont_guy_38

Thanks for your response...found out the rear I was looking at was from a 91 tho

yep the 91 would be diffent that what is in our truck years as far as I know.

ont_guy_38 · 05-05-2011, 07:15 AM

Ya I know for sure the 91 is wider and 30 spline axles...back to square one looking for a rear end..be nice to find one I can just bolt in but it's not looking good

orbot · 05-05-2011, 05:34 PM

Quote:

Originally Posted by msgross

some 2WD and 4WD's have different width axles though

And the brake drum and shows differ..

05-03-2011, 08:27 PM	#1
ont_guy_38 Registered User Join Date: Jul 2007 Location: Ontario Canada Posts: 1,006	4X4 rear axle question Does anybody know for sure if you can just take the 5 stud axle out of a 2wd and put it in a 4x4 6 stud 8.5 rear end?..

05-04-2011, 02:22 PM	#3
ont_guy_38 Registered User Join Date: Jul 2007 Location: Ontario Canada Posts: 1,006	Re: 4X4 rear axle question Thanks for your response...found out the rear I was looking at was from a 91 tho

05-04-2011, 09:24 PM	#4
dropd80s Registered User Join Date: Mar 2003 Location: wichita falls tx Posts: 429	Re: 4X4 rear axle question I have done this, so it is possible but I wouldn't say its a definite. We swapped all the brakes over too.

05-04-2011, 09:26 PM	#5
msgross Registered User Join Date: Jul 2006 Location: Central PA Posts: 12,201	Re: 4X4 rear axle question some 2WD and 4WD's have different width axles though __________________ The Garage: 1968 K-10 SWB - "Project Money Pit" 1996 Z-71 - "huntin rig" 1969 C-10 LWB (SOLD) "Project flip that truck or else" 1993 Passport, F@rd 1-ton (SOLD)"Project Cousin Eddie" My Garage Build "The 1,000 footer"

05-05-2011, 07:15 AM	#7
ont_guy_38 Registered User Join Date: Jul 2007 Location: Ontario Canada Posts: 1,006	Re: 4X4 rear axle question Ya I know for sure the 91 is wider and 30 spline axles...back to square one looking for a rear end..be nice to find one I can just bolt in but it's not looking good



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