29 rear spring mount

AA Ford Discussion Group relating to the repair and restoration of your AA Ford.
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s147881
Posts: 379
Joined: April 13th, 2007, 8:09 pm
Body Type: stake bed 82A
Model Year: 1930
Location: Decatur Michigan

29 rear spring mount

Post by s147881 » October 25th, 2017, 1:43 pm

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?

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Chris Haynes
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Joined: September 7th, 2003, 5:18 pm
Body Type: 82A
Model Year: 1930
Location: North Hills, CA/ Pine Grove, CA

Re: 29 rear spring mount

Post by Chris Haynes » October 25th, 2017, 5:10 pm

DO NOT HEAT IT. Bend it cold.

KimVanOrder
Posts: 615
Joined: August 11th, 2013, 4:25 pm
Body Type: 82-A Platform
Model Year: 1928
Location: Hamilton, Mich.

Re: 29 rear spring mount

Post by KimVanOrder » October 25th, 2017, 5:15 pm

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.
KVO
Dec. '28 AA

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s147881
Posts: 379
Joined: April 13th, 2007, 8:09 pm
Body Type: stake bed 82A
Model Year: 1930
Location: Decatur Michigan

Re: 29 rear spring mount

Post by s147881 » October 25th, 2017, 5:49 pm

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)?

KimVanOrder
Posts: 615
Joined: August 11th, 2013, 4:25 pm
Body Type: 82-A Platform
Model Year: 1928
Location: Hamilton, Mich.

Re: 29 rear spring mount

Post by KimVanOrder » October 26th, 2017, 5:24 pm

if not for show, use grade 6 bolts.
KVO
Dec. '28 AA

Stakebed
Posts: 1187
Joined: June 14th, 2007, 7:29 pm
Body Type: Grainbox
Model Year: 1929
Location: Illinois

Re: 29 rear spring mount

Post by Stakebed » October 26th, 2017, 9:02 pm

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.

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tiredtruckrestorer
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Joined: April 20th, 2003, 7:09 pm
Model Year: 1931
Location: Orwigsburg, PA

Re: 29 rear spring mount

Post by tiredtruckrestorer » October 27th, 2017, 7:18 pm

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

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s147881
Posts: 379
Joined: April 13th, 2007, 8:09 pm
Body Type: stake bed 82A
Model Year: 1930
Location: Decatur Michigan

Re: 29 rear spring mount

Post by s147881 » October 28th, 2017, 5:47 am

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.

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s147881
Posts: 379
Joined: April 13th, 2007, 8:09 pm
Body Type: stake bed 82A
Model Year: 1930
Location: Decatur Michigan

Re: 29 rear spring mount

Post by s147881 » October 28th, 2017, 10:31 am

Can bracket be welded? Is it cast or forged

KimVanOrder
Posts: 615
Joined: August 11th, 2013, 4:25 pm
Body Type: 82-A Platform
Model Year: 1928
Location: Hamilton, Mich.

Re: 29 rear spring mount

Post by KimVanOrder » October 28th, 2017, 6:18 pm

Stakebed wrote:
October 26th, 2017, 9:02 pm
i scared up some grade 8's and nylock nuts at tractor supply -

Good Idea, Grade 8 will do the job. I would not rely on Nylock nuts. I'd Use lock washers and " Loctite ".
KVO
Dec. '28 AA

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s147881
Posts: 379
Joined: April 13th, 2007, 8:09 pm
Body Type: stake bed 82A
Model Year: 1930
Location: Decatur Michigan

Re: 29 rear spring mount

Post by s147881 » November 1st, 2017, 7:32 pm

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?

KimVanOrder
Posts: 615
Joined: August 11th, 2013, 4:25 pm
Body Type: 82-A Platform
Model Year: 1928
Location: Hamilton, Mich.

Re: 29 rear spring mount

Post by KimVanOrder » November 2nd, 2017, 4:20 pm

Only if they don't fit on the mounting spindle. Remember to get the grease hole lined up.
KVO
Dec. '28 AA

bobmay1
Posts: 41
Joined: October 26th, 2017, 4:16 am
Model Year: 1930

Re: 29 rear spring mount

Post by bobmay1 » November 2nd, 2017, 5:17 pm

ImageImage
Got it welded and cleaned up - it came out good


Sent from my iPhone using Tapatalk

bobmay1
Posts: 41
Joined: October 26th, 2017, 4:16 am
Model Year: 1930

Re: 29 rear spring mount

Post by bobmay1 » November 2nd, 2017, 5:18 pm

Image


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Chris Haynes
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Joined: September 7th, 2003, 5:18 pm
Body Type: 82A
Model Year: 1930
Location: North Hills, CA/ Pine Grove, CA

Re: 29 rear spring mount

Post by Chris Haynes » November 2nd, 2017, 5:40 pm

Heating it annealed the metal.

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