ConcoursMustang Forums

1st Generation 1964 1/2 - 1973 - Questions & general discussions that apply to a specific year => 1967 Shelby => Topic started by: Bossbill on February 23, 2021, 07:04:09 PM

Title: Leaf Spring Bump Stop/Anti wrap-up Hardware
Post by: Bossbill on February 23, 2021, 07:04:09 PM
I have my original leaf spring bump stop/anti wrap-up and its hardware.
Unlike the instructions in the Branda Shelby Assembly Manual which show the "RBW w/3 slash" toothed washer bolts coming in from the bottom, mine were installed from inside the car. This makes sense as the built-in washer is required for strength as we are only going through the floor pan. Spread the load.
I'm guessing that the RBW bolts were PO, but the nuts and lock washers, which are visible under the car, are unknown.
Are they just standard hardware store plain nuts and locks?

Thanks.
[edit to add a better description of this part.
Also add pic of repop part since that was handy. Not sure why the weird looking rubber snubber is called original since it looks nothing like original part.]
Title: Re: Leaf Spring Bump Stop/Anti wrap-up Hardware
Post by: J_Speegle on February 23, 2021, 10:44:17 PM
Here are some unrestored examples. Sorry once I was in the pictures just grabbed a handful from across the production year


From a sub #100 examples

(http://www.concoursmustang.com/forum/gallery/15/6-230221215029.jpeg)


#500 - #1000 examples

(http://www.concoursmustang.com/forum/gallery/15/6-230221212410.jpeg)

#1000 - #2000 examples

(http://www.concoursmustang.com/forum/gallery/15/6-230221214033.jpeg)


From late in the year Approx #283xs - Multiple cars shown

(http://www.concoursmustang.com/forum/gallery/15/6-230221204739.jpeg)

(http://www.concoursmustang.com/forum/gallery/15/6-230221204642.jpeg)
Title: Re: Leaf Spring Bump Stop/Anti wrap-up Hardware
Post by: Bob Gaines on February 23, 2021, 10:47:51 PM
By far the most common in the later 67 Shelby's is the tapered end bolt and a hardware store generic silver lock washer and silver nut .
Title: Re: Leaf Spring Bump Stop/Anti wrap-up Hardware
Post by: Bossbill on February 23, 2021, 11:41:57 PM
Again, the Shelby changes reign supreme!
The sub 100 cars look like the Assy Manual.
The 500-1000 cars seem to have a slightly shorter bolt length than the
1000-2000 cars, like mine. My bolts are long too.
The last set I can't tell for sure but I can't see a lock washer.
Great pics Jeff!

Thanks for the info, Bob. I have the taper end bolt with tooth washer.

This thread is but one of many reasons why this forum is so great!
Title: Re: Leaf Spring Bump Stop/Anti wrap-up Hardware
Post by: J_Speegle on February 24, 2021, 05:34:47 PM
The last set I can't tell for sure but I can't see a lock washer.


No visible washer found on many of those examples
Title: Re: Leaf Spring Bump Stop/Anti wrap-up Hardware
Post by: Bob Gaines on February 24, 2021, 08:54:46 PM

No visible washer found on many of those examples
I double checked my notes and pictures to confirm that yes no lock washer .
Title: Re: Leaf Spring Bump Stop/Anti wrap-up Hardware
Post by: Boss/Cyclone on March 09, 2021, 02:28:30 PM
Mine got twisted, I guess from years of abuse.   Appears to just be a pinion snubber on a bracket.
Title: Re: Leaf Spring Bump Stop/Anti wrap-up Hardware
Post by: Bossbill on March 09, 2021, 08:39:18 PM
There are some nice snubber repops available.

The snubber threads into the bracket and a nut on the back of the bracket locks the thread stud in place to keep it from rotating.

Once nicely aged and rusted the snubbers are very difficult to remove. I just ripped off the well degraded snubber, carefully bent up the corner of the underlying metal square to which the stud is attached, heated up the bracket and grabbed the upturned edges to rotate. I did not want to scuff any part of the bracket.
Title: Re: Leaf Spring Bump Stop/Anti wrap-up Hardware
Post by: Bob Gaines on March 09, 2021, 09:36:24 PM
There are some nice snubber repops available.

The snubber threads into the bracket and a nut on the back of the bracket locks the thread stud in place to keep it from rotating.

Once nicely aged and rusted the snubbers are very difficult to remove. I just ripped off the well degraded snubber, carefully bent up the corner of the underlying metal square to which the stud is attached, heated up the bracket and grabbed the upturned edges to rotate. I did not want to scuff any part of the bracket.
To add, 65-67 snubbers have fine threads and 68 -70 are coarse . The wrong one will not thread into the base bracket.