Not another 73-87 Crossmember question! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

2tontruck · 04-27-2015, 01:31 AM

OK, ,I have done the advanced search and spent about 2hrs reading but I am still in the dark over this. Here is what I have....
1972 Suburban 1/2 ton I would like to rebuild the front end with drop spindles. I would like to get away from the design of the 72 Bushings. I have gathered is that the crossmember is the same and there is no real benefit to swapping that out but, Will the 73-87 Control arms bolt on? Is it possible to just buy those and rebuild them? I think you probably all know what I am trying to achieve. Just after all this reading I (believe it or not) am still confused.....
Thanks!

hugger6933 · 04-27-2015, 07:28 AM

While I've yet to do this myself I understand the the A-arms will bolt to the crossmember that is in the trucks67-72 with the suburban grouped in to this as well. i think the main reason lots change the crossmember is to have the later mounts[ that you can use on the older one as well] and it is all together and just bolt on the whole thing.

bbcmudtruck · 04-27-2015, 08:15 AM

You can use your current cross member and the later arms. You'll just have to have the tie rods and steering linkage match the spindles.

**67 cst swb** · 04-27-2015, 08:37 AM

I prefer to use the 71-72 crossmember with 73-later a-arms. The reason is the brake hose mount tab is in my personally preferred location.

04-27-2015, 01:31 AM	#1
2tontruck Registered User Join Date: Sep 2003 Location: Omaha,Ne Posts: 108	Not another 73-87 Crossmember question! OK, ,I have done the advanced search and spent about 2hrs reading but I am still in the dark over this. Here is what I have.... 1972 Suburban 1/2 ton I would like to rebuild the front end with drop spindles. I would like to get away from the design of the 72 Bushings. I have gathered is that the crossmember is the same and there is no real benefit to swapping that out but, Will the 73-87 Control arms bolt on? Is it possible to just buy those and rebuild them? I think you probably all know what I am trying to achieve. Just after all this reading I (believe it or not) am still confused..... Thanks!

04-27-2015, 07:28 AM	#2
hugger6933 Registered User Join Date: Oct 2008 Location: Marianna Arkansas Posts: 7,280	Re: Not another 73-87 Crossmember question! While I've yet to do this myself I understand the the A-arms will bolt to the crossmember that is in the trucks67-72 with the suburban grouped in to this as well. i think the main reason lots change the crossmember is to have the later mounts[ that you can use on the older one as well] and it is all together and just bolt on the whole thing.

04-27-2015, 08:15 AM	#3
bbcmudtruck Registered User Join Date: Nov 2012 Location: ravenwood, mo Posts: 709	Re: Not another 73-87 Crossmember question! You can use your current cross member and the later arms. You'll just have to have the tie rods and steering linkage match the spindles.

04-27-2015, 08:37 AM	#4
67 cst swb Senior Member Join Date: Nov 2001 Location: Rapid City, SD Posts: 2,281	Re: Not another 73-87 Crossmember question! I prefer to use the 71-72 crossmember with 73-later a-arms. The reason is the brake hose mount tab is in my personally preferred location. __________________ My Trucks: 1967 Chevrolet Short Wide Box 327 TH350 9" w/3.90 gears paint will be White - Current Project 1967 Chevrolet Custom LWB 283 TH400 3.73 Posi, no-AC, no-PS, no-PB, bench-seat, small-window - mostly orig driver 1967 Chevrolet CST LWB originally a 327 TH400 3.73 Posi AC PS PB, had Buddy Buckets, Small Window - parts truck 1967 Chevrolet CST LWB, 283 MT 3.73 had Buddy Buckets, Panoramic Window - parts truck 2001 Chevrolet 3500 2WD Crew Cab Dually 8.1L Allison White



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