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10-27-2019, 07:39 AM | #1 |
Junior Member
Join Date: Jan 2016
Location: NW Indiana
Posts: 12
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What rear u-bolts do I need??
To use the stock CURVED rear spring in a 1933 model 40? I am having a bad time with conflicting information on this. Does anyone have a source or part number for the correct u-bolts and related parts? Thanks!
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10-27-2019, 08:02 AM | #2 |
Senior Member
Join Date: May 2010
Location: southeastern Michigan
Posts: 10,070
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Re: What rear u-bolts do I need??
The correct U-bolts and the bars that retain the spring that are attached to the U-bolts will depend on the thickness of the spring which is mostly a function of the number of leaves which were different from one body type to another. So, what's your car's body type?
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10-27-2019, 08:29 AM | #3 |
Junior Member
Join Date: Jan 2016
Location: NW Indiana
Posts: 12
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Re: What rear u-bolts do I need??
Tudor sedan.
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10-27-2019, 11:26 AM | #4 |
Senior Member
Join Date: May 2010
Location: southeastern Michigan
Posts: 10,070
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Re: What rear u-bolts do I need??
Originally, your Tudor sedan was equipped with a 12 leaf spring (40-5560-D) which was attached to the rear cross member with two upside-down U-bolts (B-5705-B, in Ford parlance of the period they were know as 'clips'). The dimensions were 2.88" inside the 'U' and 4 1/2" from the inside of the top of the 'U' to the end of the threads. If it is an early '33, 9/16-18 case-hardened castle nuts were used. Later '33s were equipped with case-hardened slotted hex nuts. The cotter pins used were 1/8" x 1".
The bars beneath the spring that the U-bolts attached to were B-5712-C, like the bottom one shown in the photo below, but with the added forged-in reinforcements underneath like the bar at the top of the photo. |
10-27-2019, 01:55 PM | #5 |
Junior Member
Join Date: Jan 2016
Location: NW Indiana
Posts: 12
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Re: What rear u-bolts do I need??
Thank you! I am guessing that the taller rear bars would then work with a spring pack of lesser leaves, correct?
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10-27-2019, 06:36 PM | #6 |
Senior Member
Join Date: May 2010
Location: southeastern Michigan
Posts: 10,070
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Re: What rear u-bolts do I need??
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10-27-2019, 06:42 PM | #7 |
Senior Member
Join Date: May 2010
Location: Qld, Australia
Posts: 4,197
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Re: What rear u-bolts do I need??
David ,any source for the U/Bolts.
Lawrie |
10-28-2019, 04:27 PM | #8 |
Senior Member
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Re: What rear u-bolts do I need??
U bolt ,just going through this myself ,the longer Ubolt of 5" is likely a truck one for 13 leaves to use it on a smaller pack of say 11 4-1/4 a spacer of about 3/8 under the nut would be needed .A collar with a grub screw would do it .
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