72 K20 rear axle measurements? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**cmabolt** · 08-16-2010, 03:12 PM

Hi all, I am swapping out my Eaton Ho52 for a 14 bolt rear axle. Does anybody know the spring perch and backing plate to backing plate distance measurements so I can have the spring perches welded onto the 14 bolt and have axle shipped to trucks location? Also is it the yoke I need to change or the ujoint when mating up to my stock driveshaft and sm465 4spd / np205 transfercase?

This is a 72 K20 untouched

I am doing this remotely! Yih haaaa!

Thanks a ton
Chris

b454rat · 08-16-2010, 08:56 PM

40.5"

**72 LONGHORN** · 09-08-2010, 09:48 PM

Hi cmabolt! I'm new to this site but I just finished swaping out a 14 bolt for my eaton rear axle on my 72 longhorn. The spring perches lined up perfect but I have to remount the shock mounts on my 14 bolt.

**cmabolt** · 09-09-2010, 09:47 AM

Hey longhorn, what was the 14 out of, what year? Thanks for the info.

**72 LONGHORN** · 09-09-2010, 11:15 AM

Cmabolt, the 14 bolt was out of a 1982 1 ton single rear wheel chevy.

brew8 · 10-31-2010, 01:43 PM

what did you do for emergency brake cables??

08-16-2010, 03:12 PM	#1
cmabolt Registered User Join Date: Nov 2007 Location: baltimore, maryland Posts: 617	72 K20 rear axle measurements? Hi all, I am swapping out my Eaton Ho52 for a 14 bolt rear axle. Does anybody know the spring perch and backing plate to backing plate distance measurements so I can have the spring perches welded onto the 14 bolt and have axle shipped to trucks location? Also is it the yoke I need to change or the ujoint when mating up to my stock driveshaft and sm465 4spd / np205 transfercase? This is a 72 K20 untouched I am doing this remotely! Yih haaaa! Thanks a ton Chris __________________ Project Reno Build http://67-72chevytrucks.com/vboard/s...d.php?t=392636 Easier to beg forgiveness than ask permission!

08-16-2010, 08:56 PM	#2
b454rat Senior Member Join Date: May 2004 Location: Binghamton, NY Posts: 3,453	Re: 72 K20 rear axle measurements? 40.5" __________________ 2000 GMC CCSB 454/4L80 6” lift SAS 1999 Chevy CCSB 454/NV4500 6” lift 1999 GMC Yukon 350/4L60 4" SAS

09-08-2010, 09:48 PM	#3
72 LONGHORN Senior Member Join Date: Sep 2010 Location: Newark,Il Posts: 615	Re: 72 K20 rear axle measurements? Hi cmabolt! I'm new to this site but I just finished swaping out a 14 bolt for my eaton rear axle on my 72 longhorn. The spring perches lined up perfect but I have to remount the shock mounts on my 14 bolt.

09-09-2010, 09:47 AM	#4
cmabolt Registered User Join Date: Nov 2007 Location: baltimore, maryland Posts: 617	Re: 72 K20 rear axle measurements? Hey longhorn, what was the 14 out of, what year? Thanks for the info. __________________ Project Reno Build http://67-72chevytrucks.com/vboard/s...d.php?t=392636 Easier to beg forgiveness than ask permission!

09-09-2010, 11:15 AM	#5
72 LONGHORN Senior Member Join Date: Sep 2010 Location: Newark,Il Posts: 615	Re: 72 K20 rear axle measurements? Cmabolt, the 14 bolt was out of a 1982 1 ton single rear wheel chevy.

10-31-2010, 01:43 PM	#6
brew8 Registered User Join Date: Dec 2008 Location: Billings, MT Posts: 130	Re: 72 K20 rear axle measurements? what did you do for emergency brake cables??



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