Will a '73 and up rear end fit into my '72 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ABLAZN · 09-14-2009, 03:49 PM

I hate to ask such an easy question, but I did a search and must not be putting in the right words to find out what I need to know. What I am doing is converting my '72 Blazer to a 2WD. I have planned to switch my rear end to a 5 bolt trailing arm rear end, but I need to know if one from a '73 and up will fit, or what modifications would need to be done to make it work. I know my stuff when it comes to the 4X4 , but this venture into the 2WD world is new to me.

Primer70 · 09-14-2009, 04:19 PM

The 73 rear end is wider than the 72 2wd rear end, 1 3/8" wider wheel mounting surface to wheel mounting surface. More than likely not a problem, depending on the offset of the wheels you run.

XXL · 09-14-2009, 04:30 PM

You'll need to add trailing arm saddles and plan for a Panhard bar mount somewhere (OEM has a loop cast into the 3rd member but there are plenty of aftermarket options) unless you're going leaf spring.

Primer70 · 09-14-2009, 06:27 PM

If you go with the trailing arms in the rear I'd watts link it before I'd panhard bar it.

XXL · 09-14-2009, 10:08 PM

Quote:

Originally Posted by Primer70

If you go with the trailing arms in the rear I'd watts link it before I'd panhard bar it.

Unnecessary complication, IMO.

**N2TRUX** · 09-14-2009, 11:30 PM

Quote:

Originally Posted by Primer70

If you go with the trailing arms in the rear I'd watts link it before I'd panhard bar it.

Why is that?

09-14-2009, 03:49 PM	#1
ABLAZN Oh..never mind.... Join Date: Aug 2006 Location: Oregon Posts: 588	Will a '73 and up rear end fit into my '72 I hate to ask such an easy question, but I did a search and must not be putting in the right words to find out what I need to know. What I am doing is converting my '72 Blazer to a 2WD. I have planned to switch my rear end to a 5 bolt trailing arm rear end, but I need to know if one from a '73 and up will fit, or what modifications would need to be done to make it work. I know my stuff when it comes to the 4X4 , but this venture into the 2WD world is new to me. __________________ 1972 Blazer -6 inch lift -35 inch BFG A/T's Turbo 350 NP-205 454 BB (for now) MORE TO COME !!!!!! Now going to 2WD!!!!! Sold. I got it back after 22 years and did not even know it !!! THE STORY HERE Project Low Down Dirty Rat

09-14-2009, 04:19 PM	#2
Primer70 Superbad Join Date: Mar 2007 Location: Pittsburg, CA Posts: 153	Re: Will a '73 and up rear end fit into my '72 The 73 rear end is wider than the 72 2wd rear end, 1 3/8" wider wheel mounting surface to wheel mounting surface. More than likely not a problem, depending on the offset of the wheels you run.

09-14-2009, 04:30 PM	#3
XXL Señor Member Join Date: May 2002 Location: Edge of the world Posts: 5,367	Re: Will a '73 and up rear end fit into my '72 You'll need to add trailing arm saddles and plan for a Panhard bar mount somewhere (OEM has a loop cast into the 3rd member but there are plenty of aftermarket options) unless you're going leaf spring. __________________ Craigslist \| ebay \| Engrishtees \| www.myattitudesucks.com \| Follow me on Twitter

09-14-2009, 06:27 PM	#4
Primer70 Superbad Join Date: Mar 2007 Location: Pittsburg, CA Posts: 153	Re: Will a '73 and up rear end fit into my '72 If you go with the trailing arms in the rear I'd watts link it before I'd panhard bar it.



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