1937-1957 Buick Oldsmobile Pontiac suspension upgrade

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(Front suspension)
(Shocks)
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==Shocks==
 
==Shocks==
Shocks will be a problem on the pre 50’s, without a shock tower. Note on the picture of the frame spring pocket area. 3 Holes in a row. The outer 2 are the original mounting holes for the lever action shock. The one in the middle is drilled at the dead center of the spring pocket, later enlarged to fit the shock bushing.   
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Shocks will be a problem on the pre-50's, without a shock tower. Note on the picture of the frame spring pocket area: 3 holes in a row. The outer 2 are the original mounting holes for the lever action shock. The one in the middle is drilled at the dead center of the spring pocket, later enlarged to fit the shock bushing.   
  
[[image:Mocked_mount_top_view.jpg]]
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[[image:Mocked_mount_top_view.jpg|frame|none|Caption goes here.]]
  
I used a pair of shocks from a 79 Dodge Diplomat. They have the Stem mount on both ends. Easy to mount through that frame hole. I had to fabricate the lower mount. (Even tho the lower Control arms had shock mounts, there were no shocks short enough that fit that mount).  With level control arms the ride height on my car was 9.5 inches.  That meant a shock collapsed height of about 7 1/2 inches.  The Dodge shocks were not only the right ride height, they were designed for a similar weight car.  
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This project used a pair of shocks from a '79 Dodge Diplomat, with the stem mount on both ends. These are easy to mount through that frame hole. The lower mount had to be fabricated. (Even tho the lower Control arms had shock mounts, there were no shocks short enough that fit that mount).  With level control arms the ride height on my car was 9.5 inches.  That meant a shock collapsed height of about 7 1/2 inches.  The Dodge shocks were not only the right ride height, they were designed for a similar weight car.  
 
Note: 58 Buick has an external shock mount, riveted to the frame.  You could get a set of those, or fabricate some, and have many more shock options than you would up the center of the spring.
 
Note: 58 Buick has an external shock mount, riveted to the frame.  You could get a set of those, or fabricate some, and have many more shock options than you would up the center of the spring.
  
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We used his original springs, but don’t have it finished yet, so we may do some adjusting to the ride height when all is said and done. Be aware, if you use a disc brake kit with the caliper to the front, you will probably have an issue with the sway bar.  
 
We used his original springs, but don’t have it finished yet, so we may do some adjusting to the ride height when all is said and done. Be aware, if you use a disc brake kit with the caliper to the front, you will probably have an issue with the sway bar.  
  
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===Sway bar===
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The 40's cars had very small sway bars -- 5/8 inch. In this project, a 3/4 inch 1956 Buick sway bar could be bolted in without modification.
  
 
[[image:49_olds_lower_with_for_ball_joint.jpg]]
 
[[image:49_olds_lower_with_for_ball_joint.jpg]]
 
One other tidbit. The 40’s cars had very small sway bars. 5/8th inch.  Happened to stumble across a 56 Buick. The sway bar was ¾ inch and bolted in without modification.
 
 
Well, there it is. Hopefully enough information to convince you to upgrade, not sub frame.  Sorry I didn’t take more pictures.  Oh yeah, forgot to say, it works great.
 
 
The next step will be a steering upgrade. Not that you have to have it, but there have been some improvements in the last 65 years.  I’m also keen on putting in a tilt steering column with turn signals, so the time is ripe.  On my buddy’s 49 Olds a 605 power steering box bolted in like the original. I can’t make it fit my 41, so I’m chasing a rack and pinion setup.
 
 
 
Thanks to Chieftain, Grouch, John, Scarebird, CPP, California Pontiac and a few others for putting up with me while I sorted this out.
 
 
Feel free to PM me if I’ve left you more confused than enlightened. oldguy829 on Hotrodders.com
 

Revision as of 15:36, 24 October 2007

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