Author Topic: Backing Plate Parking Brake Cable Holes Too Small  (Read 2278 times)

69-er

  • Member
  • ***
  • Posts: 59
    • View Profile
Backing Plate Parking Brake Cable Holes Too Small
« on: March 07, 2020, 12:29:53 AM »
Anybody run into this? The parking brake cables will not fit into the backing plate holes. Either the hole is too small or the cable end is too big. I wouldn't mind drilling out the hole if I knew for a fact that the hole was not the proper diameter.

Does anybody have a plate laying around that they could measure for me?

x66 714

  • Hero Member
  • *****
  • Posts: 1789
    • View Profile
Re: Backing Plate Parking Brake Cable Holes Too Small
« Reply #1 on: March 07, 2020, 01:57:58 AM »
Are both of them reproduction?...Joe
See America's First, Chevrolet

1968 Z/28 Corvette Bronze. Black Hounds Tooth. 02E Los Angeles born 3/13/1968 pnt OO. Purchased March 1976
1969 SS396 Yellow/Yellow 08E Norwood born 8/28/1969 pnt 76E. Purchased April 1981

69-er

  • Member
  • ***
  • Posts: 59
    • View Profile
Re: Backing Plate Parking Brake Cable Holes Too Small
« Reply #2 on: March 07, 2020, 05:10:34 AM »
Yes, both are reproductions.

COPOZ/28

  • Member
  • ***
  • Posts: 34
    • View Profile
Re: Backing Plate Parking Brake Cable Holes Too Small
« Reply #3 on: March 12, 2020, 07:44:16 PM »
Being a retired Brake Engineer, I can tell you there would be no issue/concern with opening the hole in the backing plate just enough to allow the "nose" of the park brake cable end fitting to fit into the larger hole.  Once installed into the backing plate, and you confirm the three prongs of the end fitting expand properly to prevent them from pulling back out, you're good to go.
Chuck B.
Ice cream run in our '69 Z/28 on Woodward Ave. in Royal Oak.
Daytona Yellow, NOR 05E, X33, M22, 4.88/9511CB.

69-er

  • Member
  • ***
  • Posts: 59
    • View Profile
Re: Backing Plate Parking Brake Cable Holes Too Small
« Reply #4 on: March 12, 2020, 09:41:46 PM »
That's what I wound up doing.  Somebody measured two original plates for me and they measured .575".  Mine were .520".

Having to enlarging the hole wasn't a big deal to me.  What I was concerned about was that if the cable diameter was incorrect, would the rest of the cable's dimensions be correct?  If they weren't, then I'd be forced to weld up the hole to fit a correct sized cable.