29 rear spring mount
- s147881
- Posts: 425
- Joined: April 13th, 2007, 8:09 pm
- Body Type: stake bed 82A
- Model Year: 1930
- Location: Decatur Michigan
29 rear spring mount
Started taking rear fenders and running boards off a 29 express truck and realized the passengers side rear spring mounting shaft is bent up. Has anyone had any luck heating and bending it back into position?
- Chris Haynes
- Posts: 2203
- Joined: September 7th, 2003, 5:18 pm
- Body Type: 82A
- Model Year: 1930
- Location: Camarillo, CA
Re: 29 rear spring mount
DO NOT HEAT IT. Bend it cold.
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- Posts: 753
- Joined: August 11th, 2013, 4:25 pm
- Body Type: 82-A Platform
- Model Year: 1928
- Location: Hamilton, Mich.
Re: 29 rear spring mount
my two cents: Cut the old one out and make a new shaft to weld in. If it is 'bent up', that sounds like a major bend / issue. I'd rebuild it straight.
This all assuming you have access to machine shop.
This all assuming you have access to machine shop.
KVO
Dec. '28 AA
Dec. '28 AA
- s147881
- Posts: 425
- Joined: April 13th, 2007, 8:09 pm
- Body Type: stake bed 82A
- Model Year: 1930
- Location: Decatur Michigan
Re: 29 rear spring mount
Took it apart and found the bracket broken. I am thinking of bending it down and seeing if the break goes back into place to allow me to weld it. If needed I will remove on from trucks in junkyard. Don't look forward to riveting the large rivets. Anyone installed the big frame rivets? Any suggestions (other than forget it)?
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- Posts: 753
- Joined: August 11th, 2013, 4:25 pm
- Body Type: 82-A Platform
- Model Year: 1928
- Location: Hamilton, Mich.
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- Posts: 1223
- Joined: June 14th, 2007, 7:29 pm
- Body Type: Grainbox
- Model Year: 1929
- Location: Illinois
Re: 29 rear spring mount
i scared up some grade 8's and nylock nuts at tractor supply - had to search 2 of them because they had a shoulder that was a hair longer and perfect length for where it needed to be. I ended up finding good ford ones so these are just hangin around. ive got plenty of bent or worn out ones if someone wants to weld one up and lathe it smooth.
- tiredtruckrestorer
- Posts: 338
- Joined: April 20th, 2003, 7:09 pm
- Model Year: 1931
- Location: Orwigsburg, PA
Re: 29 rear spring mount
First off, you will find that the rivets and rivet holes in the frame are not standard bolt hole sizes. The holes are larger that when the hot rivets are installed and squashed in place they conform to the hole size. If your going to use bolts you should ream the holes out to the next larger size so you get a good tight fit. It is possible that maybe you could find a good grade metric bolt would fit tighter in the frame rail hole if you don't want to oversize the frame holes. If your going to drill them out use a good reamer and not a regular drill bit to keep the hole centered where it is.
When I rivet I stand the frame on it's side. I made a stand with a rod that I drilled out to fit the size rivet head I'm working with to use as my bucking bar. I temporally bolt the bracket that I want to install to the frame. Put the rivet up through the bracket and frame and hold it in place with a vise grips. I lower the frame down on the stand until the rivet head sits on my bucking bar. I then heat the rivet and use my air chisel with a special riveting punch to form the rivet head on the inside of the frame rail.
If your center spring pivot is bent I would find another one. If it is worn, it could be welded up and machined back down to size. Remember that pivot, along with the torque tube, is what your rear is pushing against to move your truck down the road.
Keith
When I rivet I stand the frame on it's side. I made a stand with a rod that I drilled out to fit the size rivet head I'm working with to use as my bucking bar. I temporally bolt the bracket that I want to install to the frame. Put the rivet up through the bracket and frame and hold it in place with a vise grips. I lower the frame down on the stand until the rivet head sits on my bucking bar. I then heat the rivet and use my air chisel with a special riveting punch to form the rivet head on the inside of the frame rail.
If your center spring pivot is bent I would find another one. If it is worn, it could be welded up and machined back down to size. Remember that pivot, along with the torque tube, is what your rear is pushing against to move your truck down the road.
Keith
- s147881
- Posts: 425
- Joined: April 13th, 2007, 8:09 pm
- Body Type: stake bed 82A
- Model Year: 1930
- Location: Decatur Michigan
Re: 29 rear spring mount
Ok - sounds like I will need to make a strong device to hold rivet in while I heat and then air hammer the other end.
- s147881
- Posts: 425
- Joined: April 13th, 2007, 8:09 pm
- Body Type: stake bed 82A
- Model Year: 1930
- Location: Decatur Michigan
Re: 29 rear spring mount
Can bracket be welded? Is it cast or forged
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- Posts: 753
- Joined: August 11th, 2013, 4:25 pm
- Body Type: 82-A Platform
- Model Year: 1928
- Location: Hamilton, Mich.
- s147881
- Posts: 425
- Joined: April 13th, 2007, 8:09 pm
- Body Type: stake bed 82A
- Model Year: 1930
- Location: Decatur Michigan
Re: 29 rear spring mount
I was able to get the spring mount back into the original spot by applying some heat and a 6 foot pipe. I will weld bracket tomorrow. I need to replace bushings on spring that goes on the mount. Do the bushings need to be reamed after installing?
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- Posts: 753
- Joined: August 11th, 2013, 4:25 pm
- Body Type: 82-A Platform
- Model Year: 1928
- Location: Hamilton, Mich.
Re: 29 rear spring mount
Only if they don't fit on the mounting spindle. Remember to get the grease hole lined up.
KVO
Dec. '28 AA
Dec. '28 AA
Re: 29 rear spring mount
Got it welded and cleaned up - it came out good
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Re: 29 rear spring mount
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- Chris Haynes
- Posts: 2203
- Joined: September 7th, 2003, 5:18 pm
- Body Type: 82A
- Model Year: 1930
- Location: Camarillo, CA
Re: 29 rear spring mount
Heating it annealed the metal.