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#1 |
Senior Member
![]() ![]() Join Date: Dec 1999
Location: Urbana,Ohio,USA
Posts: 4,618
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Front crossmember question. Spring pocket issue. HELP
Hey all.
I am working on board member 70cst's truck. The Big block springs wont stay in place in the front crossmember. The front suspension has been changed to one out of a late 70's truck. With disc brakes. I think the stamped nubs that the coil spring goes into is worn too far to hold the spring. My question really is, Is the actual crosssmember the same down to 67? I have another crossmember that is nice. But i wanted others thoughts on it. Will the lower control arms from the later crossmember bolt right onto the 71 crossmember i currently have ? Let me know fella's. Or if your not sure what i am talking about let me know. Thanks, Mike
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2008 Chevy HHR 1/2 panel. 1949 Chevy Panel truck(just sittin, waiting) Board member #6 |
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#2 |
Senior Member
![]() ![]() Join Date: Dec 1999
Location: Urbana,Ohio,USA
Posts: 4,618
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Re: Front crossmember question. Spring pocket issue. HELP
29 views and not one thought on it???
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2008 Chevy HHR 1/2 panel. 1949 Chevy Panel truck(just sittin, waiting) Board member #6 |
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#3 |
Senior Member
![]() Join Date: Feb 2001
Location: New Madison, Ohio
Posts: 21,365
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Re: Front crossmember question. Spring pocket issue. HELP
Hey...I'm signed on. I'll give you a few bumps.
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A husband can be right...or...A husband can be happy. ![]() 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. ![]() 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc ![]() ![]() JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder! Last edited by 70cst; 04-18-2011 at 08:16 AM. |
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#4 |
VA72C10
![]() Join Date: Mar 2008
Location: Midlothian, VA
Posts: 25,269
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Re: Front crossmember question. Spring pocket issue. HELP
not sure to be honest....never laid eyes on a 73-up crossmember to view the difference
![]() Bump for you and maybe you could move this over to suspension forum if no hits here by tomorrow...
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Looking for a 67-72 swb or blazer project in or around VA. ![]() |
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#5 |
Redefining LowBudget
Join Date: Mar 2009
Location: lebanon Cow Hampshire
Posts: 4,538
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Re: Front crossmember question. Spring pocket issue. HELP
good one Mike??
I know the later ones have the rubber control arm Bushings???? Another Good ?? would be can you convert from the solid shaft to the rubber bushings ??? then I could keep my pocked LCA and get the smoother ride??? Jeff
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1970 C10 CST fleetside 472 ....big dreams little cash... SunShine Syndicate.. ![]() Mikes Sandwich Fair Run OCT 8th 2011
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#6 |
Senior Member
![]() Join Date: Feb 2001
Location: New Madison, Ohio
Posts: 21,365
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Re: Front crossmember question. Spring pocket issue. HELP
Thanks for the suggestion...I am open to whatever it takes to make the Circuit Rider safe and right.
__________________
A husband can be right...or...A husband can be happy. ![]() 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. ![]() 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc ![]() ![]() JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder! |
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#7 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: Front crossmember question. Spring pocket issue. HELP
does it have drop springs or chopped springs by chance?
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#8 |
Senior Member
![]() Join Date: Feb 2001
Location: New Madison, Ohio
Posts: 21,365
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Re: Front crossmember question. Spring pocket issue. HELP
The springs are the factory spec'd front springs for a BB truck which are the same spring as a 3/4 T truck I do believe...
Posted via Mobile Device
__________________
A husband can be right...or...A husband can be happy. ![]() 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. ![]() 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc ![]() ![]() JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder! Last edited by 70cst; 04-18-2011 at 07:07 PM. |
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#9 |
Senior Member
![]() Join Date: Feb 2001
Location: New Madison, Ohio
Posts: 21,365
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Re: Front crossmember question. Spring pocket issue. HELP
Earth to WES-Earth to Wes. Calling Wes.
![]() Posted via Mobile Device
__________________
A husband can be right...or...A husband can be happy. ![]() 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. ![]() 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc ![]() ![]() JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder! |
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#10 |
Registered User
Join Date: Sep 2005
Location: Canton North carolina
Posts: 3,079
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Re: Front crossmember question. Spring pocket issue. HELP
try lolife and see what he says. I believe the crossmembers are the same if not identical. It would depend on the year of the swapped crossmember as some things changed around 81. I do know there is an extra hole that must be drilled in the frame to use the later crossmember. So the problem is in the upper portion of the member? If you are going to reuse the upper and lower control arms and the same drag link stuff the swap should not affect anything but the location for the brake hose attachment, as the 67 stuff exits to the rear while the 71 up stuff crosses over and exits to the front. Based on my own reasoning the swap should not be a problem with the exception of moving the brake line location. Hope this helps. Harold
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67 blue step side- bb 68 gold and white swb cst anniversary 68 custom swb hot rod Ls swap 69 swb cst 6 cylinder/ overdrive 69 black/black cst bb swb 70 orange and white cst Canada built truck swb bb 71 black and white super swb bb 71 red and white super swb 72 green and white super swb 4x4 62 nova wagon 400 series Ls swapped 68 Camaro 327/4 speed- 1 owner, original paint 66 Volkswagen bettle 69 auto stick Volkswagen Beetle |
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#11 | |
Senior Member
![]() Join Date: Feb 2001
Location: New Madison, Ohio
Posts: 21,365
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Re: Front crossmember question. Spring pocket issue. HELP
Quote:
![]() Posted via Mobile Device
__________________
A husband can be right...or...A husband can be happy. ![]() 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. ![]() 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc ![]() ![]() JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder! |
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#12 |
Senior Member
![]() Join Date: Feb 2001
Location: New Madison, Ohio
Posts: 21,365
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Re: Front crossmember question. Spring pocket issue. HELP
Other thoughts
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__________________
A husband can be right...or...A husband can be happy. ![]() 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. ![]() 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc ![]() ![]() JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder! |
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#13 | |
Happy to be here
![]() Join Date: Mar 2000
Location: Cypress, TX
Posts: 39,023
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Re: Front crossmember question. Spring pocket issue. HELP
Quote:
To confirm, get Keith (Lolife99) or Scot (Scoti) in on this. Both those guys are have amazing memories on the topic.
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Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra" |
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#14 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,698
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Re: Front crossmember question. Spring pocket issue. HELP
I've never done the 73-87 swap into an older chassis.
I always leave the original crossmember, itself. The "D" stamp up in the spring pocket should be the same. I don't understand how it's moving around? Especially a full length spring. Got any pics? The 67-70 crossmembers have a brake line tab on the back side of the crossmember. The 71-72 crossmembers have it on the front side. 73-87 have no tab. The brake line connects thru a hole in the frame itself. I see no reason you couldn't swap out the crossmember. All the a-arms will interchange with the different year crossmember. The only difference would be the 73-87 trucks had a slightly larger u-bolt. A drill will fix that. (9/16" if I remember correctly)
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 Last edited by lolife99; 04-19-2011 at 11:17 AM. |
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#15 |
Senior Member
![]() Join Date: Feb 2001
Location: New Madison, Ohio
Posts: 21,365
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Re: Front crossmember question. Spring pocket issue. HELP
Thanks for the follow up N2TRUX & lolife99...
I spoke with Mike this morning and the thought is maybe I was sent the wrong springs last fall. I bought these through ECE and Stan did not have the right set of springs in stock so he was able to find a set and had the springs sent to me. These springs are to be the same front spring as for a BB truck or C20 as they both take th same springs up front. As Mike said these springs do not seem to be "seating" properly and I have noticed since I picked up the truck last Aug., it just didn't seem to steer/handle properly. So for me this is a potential safety issue...we will eventually figure this out. Sometimes it's the fine tuning that can drive a person nuts. ![]() ![]() And for the record-Stan of ECE has been very helpful.
__________________
A husband can be right...or...A husband can be happy. ![]() 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. ![]() 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc ![]() ![]() JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder! Last edited by 70cst; 04-19-2011 at 11:38 AM. |
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#16 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,698
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Re: Front crossmember question. Spring pocket issue. HELP
If you pull the spring,... take a picture up in the pocket.
Also take a picture of the spring itself. I have never seen that area distorted. I've had some extremely rusted trucks,... but there is nothing there that would wear the stamped steel of the crossmember. I suspect it's the spring. I still don't understand how it could move. A BB spring or a stock length SB spring would require a spring compressor to install. Even with the wheels off the ground,... you shouldn't be able to move it.
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#17 | ||
Project Junkie! Fishing Poor!!
![]() Join Date: Dec 1999
Location: Olympia,Wa. 98512
Posts: 10,770
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Re: Front crossmember question. Spring pocket issue. HELP
Quote:
Quote:
My suggestion was to pull the springs and compare them with a set of originals he has setting around the shop. If they are different, then theres the answer. He can inspect the spring pocket once the springs are out. However like I said, I don't believe that to be the problem. The chances are pretty slim that one pocket would be distorted, let alone both. WES
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On-line catolog Classic Heartbeat Pickup Parts WEHEPP@comcast.net Call us Toll Free (888) 338-2502 Like Us on Facebook No appointment necessary. 72 BB Chevy Custom Deluxe / Custom Camper 67 I-6 (Soon to be 5.7 LS1) Panel 68 BB Chevy Short Bed 72 6.0 LQ9 Short Bed Chevy 4X4 Olympia's fastest growing truck parts supplier. Olympia's home for Wayward Chevys |
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#18 | |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,698
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Re: Front crossmember question. Spring pocket issue. HELP
Quote:
Has the front end been rebuilt? (balljoints, tie rods, a-arm bushing, etc?) Do you have newer shocks and a sway bar?
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#19 | |
Senior Member
![]() Join Date: Feb 2001
Location: New Madison, Ohio
Posts: 21,365
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Re: Front crossmember question. Spring pocket issue. HELP
Quote:
Posted via Mobile Device
__________________
A husband can be right...or...A husband can be happy. ![]() 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. ![]() 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc ![]() ![]() JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder! |
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#20 | |
Senior Member
![]() Join Date: Feb 2001
Location: New Madison, Ohio
Posts: 21,365
|
Re: Front crossmember question. Spring pocket issue. HELP
Quote:
My thinking is that the wrong front springs were shipped. There can only be so many possibilities to why these springs seem not to fit properly. Again thanks all for your input. ![]() Posted via Mobile Device
__________________
A husband can be right...or...A husband can be happy. ![]() 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. ![]() 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc ![]() ![]() JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder! |
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#21 |
Senior Member
![]() ![]() Join Date: Dec 1999
Location: Urbana,Ohio,USA
Posts: 4,618
|
Re: Front crossmember question. Spring pocket issue. HELP
I will get it figured out, and let everyone know.
__________________
2008 Chevy HHR 1/2 panel. 1949 Chevy Panel truck(just sittin, waiting) Board member #6 |
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#22 |
Senior Member
![]() Join Date: Feb 2001
Location: New Madison, Ohio
Posts: 21,365
|
Re: Front crossmember question. Spring pocket issue. HELP
Next Monday fine 69 will have the Circuit Rider up on the lift and we will find out what is causing the front spring problems...
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__________________
A husband can be right...or...A husband can be happy. ![]() 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. ![]() 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc ![]() ![]() JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder! |
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