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Raising front suspension on '49 3100 #1322841 Wed Aug 21 2019 01:52 PM
Joined: Nov 2018
Posts: 58
J
Joe S. Offline OP
Wrench Fetcher
Dear friends,

I would like to raise the front suspension a couple of inches o my '49 3100 half ton. To me it would look better. Is it simply a matter of getting a couple of steel slabs, drilling them out for the U bolts and pins and inserting them between the front axle and springs?

Will it affect the handling or steering geometry?

Best regards

Joe

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Last edited by Joe S.; Wed Aug 21 2019 01:53 PM.

'49 3100 "Sweet Caroline" because the truck has fabulous curves .... like Caroline!
Re: Raising front suspension on '49 3100 [Re: Joe S.] #1322846 Wed Aug 21 2019 02:19 PM
Joined: Feb 2000
Posts: 4,054
J
Joe H Offline
Shop Shark
Thats one way, or look at the shackles, you maybe able to install longer ones from the rear. My '37 sat low in front, rear shackles were longer and fit right in, raised the front where I wanted without any steering issues.

Re: Raising front suspension on '49 3100 [Re: Joe S.] #1322854 Wed Aug 21 2019 03:35 PM
Joined: Nov 2018
Posts: 58
J
Joe S. Offline OP
Wrench Fetcher
Thank you Joe H!


'49 3100 "Sweet Caroline" because the truck has fabulous curves .... like Caroline!
Re: Raising front suspension on '49 3100 [Re: Joe S.] #1322878 Wed Aug 21 2019 05:50 PM
Joined: Mar 2010
Posts: 8,870
5
52Carl Offline
Master Gabster
I wouldn't do it. There is too much geometry built into the straight axle such as castor, and camber, which will likely be altered by lifting it a "couple of inches". It will also throw your drag link out of wack.
Get yourself a set of LT215/85R16 tires. They will give you a noticeable lift. They measure 30 1/2" tall, compared to the 28" stock tires.

Re: Raising front suspension on '49 3100 [Re: Joe S.] #1322886 Wed Aug 21 2019 06:50 PM
Joined: Jul 2000
Posts: 830
G
Gord&Fran Offline
Shop Wrasse
I find our old truck feels like it's going to go over when taking a corner that seems like nothing in our Acura. Raising the center of gravity a couple of inches sure won't help! I'm with Carl on this one.


Gord
----
1954 1/2 ton 235 4 speed
Re: Raising front suspension on '49 3100 [Re: Joe S.] #1322946 Thu Aug 22 2019 01:41 AM
Joined: Nov 2018
Posts: 58
J
Joe S. Offline OP
Wrench Fetcher
Thank you Gord&Fran and 52Carl.


'49 3100 "Sweet Caroline" because the truck has fabulous curves .... like Caroline!
Re: Raising front suspension on '49 3100 [Re: Joe S.] #1322983 Thu Aug 22 2019 12:32 PM
Joined: Feb 2004
Posts: 19,684
H
Hotrod Lincoln Offline
Boltergeist
It looks like those springs have sagged a little from old age and negotiating too many bumps. Look at the distance between the frame and the rubber bump stops. It's going to bottom out on the stops anytime a serious bounce happens. I'd suggest getting the springs re-arched, adding a leaf, or finding some less-tired springs. Chances are the drag link is already out of level due to spring sag, so a lift MIGHT bring it back closer to right. I'd prefer to restore the suspension to its original condition rather than apply a Band-Aid fix.
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: Raising front suspension on '49 3100 [Re: Hotrod Lincoln] #1323288 Sat Aug 24 2019 05:12 PM
Joined: Nov 2018
Posts: 58
J
Joe S. Offline OP
Wrench Fetcher
To Jerry aka Hotrod Lincoln,

There is a spring shop 15 minutes away. I have been passing by them for decades and always taken note. Would they be able to look up the specifications for the spring to re-arch them?

Joe


'49 3100 "Sweet Caroline" because the truck has fabulous curves .... like Caroline!
Re: Raising front suspension on '49 3100 [Re: Joe S.] #1323289 Sat Aug 24 2019 05:23 PM
Joined: Feb 2004
Posts: 19,684
H
Hotrod Lincoln Offline
Boltergeist
If they've been around awhile they've probably got a gray-headed old geezer who can educate you on spring re-arching. It's a pretty complicated process, and doing it right involves annealing, re-shaping, and re-tempering the spring leaves. I've seen some attempts made at re-arching springs done with a hydraulic press and/or anvils and sledge hammers, with less than ideal results. It's possible that the shop might be able to rebuild your springs with parts they've had on hand for decades, assuming that they have been around for that long. "Talk's cheap"- - - - -drop in and get acquainted!
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: Raising front suspension on '49 3100 [Re: Joe S.] #1323295 Sat Aug 24 2019 05:51 PM
Joined: Feb 2001
Posts: 6,674
W
WE b OLD Offline
Master Gabster
My truck's rear springs were modified during the rebuild in a way that I did not authorize, so they have very little cushioning when going over a bump or hitting a pothole. So when I get back from KC I plan on taking it to a spring shop about 50 miles away to have it fixed, I would like to have the rear end raised 1 inch in the process. The springs are not original because the rear end is out of a 79 Chevy Nova and was custom made for it.


Ron, The Computer Greek
I love therefore I am.

1960 MGA Roadster Sold 7/18/2017
1954 3100 Chevy truck in the Gallery
2017 Buick Encore
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