Rear end question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**j_cst_10** · 01-20-2009, 05:49 PM

I am under the impression from this forum that 5 lug axles from a 71 or 72 chevy cannot be swapped into a 70 or below housing because the lengths are different. Depending on when a '70 was made it may have the longer axles already.

Is the overall length of the rear end changed? If so, if a whole rear end is swapped is there anything different with the 71 or 72 rear end besides the fact that the rear end is a little wider?

larry may · 01-20-2009, 05:58 PM

What you say is what I think. Some of these wizzards swap out and end up with wider housings then use a different backspacing for the wheels to compensate the length difference. One or more will chime in here. But them that have done this goter down pat.

low'n slow · 01-26-2009, 12:00 AM

A late year 70 model may have the wider rear end. My Jimmy did and the 5 lug axles were the same width. Some people put the 5 lug axles in the narrow rear ends and run them, but I wouldn't.

01-20-2009, 05:49 PM	#1
j_cst_10 Senior Member Join Date: Nov 2008 Location: Cleveland, OH Posts: 587	Rear end question I am under the impression from this forum that 5 lug axles from a 71 or 72 chevy cannot be swapped into a 70 or below housing because the lengths are different. Depending on when a '70 was made it may have the longer axles already. Is the overall length of the rear end changed? If so, if a whole rear end is swapped is there anything different with the 71 or 72 rear end besides the fact that the rear end is a little wider?

01-20-2009, 05:58 PM	#2
larry may Senior Member Join Date: Jul 2005 Location: MISSOURI Posts: 3,256	Re: Rear end question What you say is what I think. Some of these wizzards swap out and end up with wider housings then use a different backspacing for the wheels to compensate the length difference. One or more will chime in here. But them that have done this goter down pat. __________________ The biggest problem people have, is other people Thou shalt be cool and not hassle Be a site supporter. The heart of the wise inclines to the right, but the heart of the fool inclines to the left." Ecclesiastes 10:2 Last edited by larry may; 01-20-2009 at 05:59 PM.

01-26-2009, 12:00 AM	#3
low'n slow Too Dumb To Know Better Join Date: Nov 2005 Location: Texas Posts: 882	Re: Rear end question A late year 70 model may have the wider rear end. My Jimmy did and the 5 lug axles were the same width. Some people put the 5 lug axles in the narrow rear ends and run them, but I wouldn't.



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