Need trailing arm measurements - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ltdmstr · 04-26-2020, 03:37 PM

I have the back half of my '68 down to the frame to clean it up and add new parts. Unfortunately, my trailing arms are total junk. The middle portion are rusted all the way through and the two halves are spread apart probably 3/4" or so. I haven't been able to find any good used ones, and the aftermarket replacements I've seen looked like crap for $500. So I'm making my own. Does anyone have actual drawings showing the dimensions for these? My main concerns are the locations of the holes for the spring mounting bolts and u-bolts for the rear axle. And also the angle of the kick-up in the rear where the axle mounts. My stock arms are too messed up for me to measure accurately, and I'd like to get this right the first time. Thanks.

**AussieinNC** · 04-26-2020, 05:16 PM

Try looking through the for sale ads on here for one or become a supporting member and post a want to buy ad.

There are also several aftermarket suppliers of these arms and several vendors offer direct replacement factory style arms...

**bigmac73** · 04-26-2020, 05:26 PM

https://www.classicindustries.com/sh...railing%20Arms

ltdmstr · 04-26-2020, 06:33 PM

Yeah, I'm pretty much set on making my own. Hoping someone has the dimensions.

04-26-2020, 03:37 PM	#1
ltdmstr Registered User Join Date: Jul 2016 Location: Deerfield IL Posts: 108	Need trailing arm measurements I have the back half of my '68 down to the frame to clean it up and add new parts. Unfortunately, my trailing arms are total junk. The middle portion are rusted all the way through and the two halves are spread apart probably 3/4" or so. I haven't been able to find any good used ones, and the aftermarket replacements I've seen looked like crap for $500. So I'm making my own. Does anyone have actual drawings showing the dimensions for these? My main concerns are the locations of the holes for the spring mounting bolts and u-bolts for the rear axle. And also the angle of the kick-up in the rear where the axle mounts. My stock arms are too messed up for me to measure accurately, and I'd like to get this right the first time. Thanks. Attached Images

04-26-2020, 05:16 PM	#2
AussieinNC Moderator Join Date: Jun 2017 Location: Cherryville, NC Posts: 2,204	Re: Need trailing arm measurements Try looking through the for sale ads on here for one or become a supporting member and post a want to buy ad. There are also several aftermarket suppliers of these arms and several vendors offer direct replacement factory style arms... __________________ Family and country before all others... 2006 Chevy Silverado (Daily Driver) 2012 Chevy Equinox

04-26-2020, 05:26 PM	#3
bigmac73 Senior Member Join Date: Mar 2012 Location: Chesapeake, Va Posts: 1,275	Re: Need trailing arm measurements https://www.classicindustries.com/sh...railing%20Arms __________________ Mike 72 C-10 Cheyenne off frame resto and Upgraded to 4 wheel disk, Tilt, Dakota Digital Dash / Rear slider. 421 SBC / TH350 3000RPM Stall Progression Ignition /Holley 750 DP/3:73 gear Eaton Limited Slip unit / 2 1/2 exhaust glasspacks

04-26-2020, 06:33 PM	#4
ltdmstr Registered User Join Date: Jul 2016 Location: Deerfield IL Posts: 108	Re: Need trailing arm measurements Yeah, I'm pretty much set on making my own. Hoping someone has the dimensions.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.