FYI FORD - MustangSteve's Ford Mustang Forum
The Internet's Most Knowledgeable Classic Mustang Information
IF YOU HAVE A QUESTION ABOUT CLASSIC FORD MUSTANGS, YOU HAVE COME TO THE RIGHT PLACE!
MustangSteve has over 30 years of Mustang experience, having owned 30 of them and restored several others. With the help of other Mustangers, this site is dedicated to helping anyone wanting to restore or modify their Mustang.... THERE ARE NO DUMB QUESTIONS!!!!!
Visit MustangSteve's web site to view some of my work and find details for:
FYIFORD Contributors' PICTURES - Power Brake Retrofit Kits for 65-66 Stangs - Classic Mustang FAQ's by MustangSteve - How to wire in a Duraspark Ignition - Mustang Ride Height Pictures and Descriptions - Steel Bushings to fit Granada Spindles to Mustang Tie Rods - Visit my EBAY store MustangSteve Performance - How to Install Granada Disc Brakes MustangSteve's Disc Brake Swap Page - FYIFORD Acronyms for guide to all the acronyms used on this page - FYIFORD Important information and upcoming events

You are not logged in. Would you like to login or register?

  • Index
  •  » FYI Ford, Classic Mustang Tech Discussion
  •  » What are these two holes in rear floor pans for? (65 Mustang Coupe)

    • 1 of 1

       

    4/18/2021 5:08 PM  #1

    mustang6518
    FYI FORD Member

    Offline

    Registered: 2/15/2021
    Posts: 31

    What are these two holes in rear floor pans for? (65 Mustang Coupe)

    Do they have any use? Or safe to plug up?

     

    4/18/2021 6:20 PM  #2

    6sally6
    Hyper FYIFORD ADDICT

    Offline

    From: Surfside Beach,SC
    Registered: 4/02/2013
    Posts: 6,853

    Re: What are these two holes in rear floor pans for? (65 Mustang Coupe)

    What are they?..........Looks like about 1/2"  to me. Could be worng......I was once!
    6sally6

    Get busy Liv'in or get busy Die'n....Host of the 2020 Bash at the Beach/The only Bash that got cancelled  )8
     

    4/18/2021 6:21 PM  #3

    6sally6
    Hyper FYIFORD ADDICT

    Offline

    From: Surfside Beach,SC
    Registered: 4/02/2013
    Posts: 6,853

    Re: What are these two holes in rear floor pans for? (65 Mustang Coupe)

    I plugged mine!
    6s6

    Get busy Liv'in or get busy Die'n....Host of the 2020 Bash at the Beach/The only Bash that got cancelled  )8
     

    4/18/2021 10:47 PM  #4

    BILLY WALTON from GEORGIA
    Carrollton, GA Bash Host

    Offline

    From: CARROLLTON GEORGIA
    Registered: 4/14/2013
    Posts: 2,431

    Re: What are these two holes in rear floor pans for? (65 Mustang Coupe)

    Drain holes.

    Its really me....I fixed my caps lock .
     

    4/19/2021 9:05 AM  #5

    BobE
    Senior 24-7 FYI Addict

    Offline

    From: White Plains, NY
    Registered: 4/04/2013
    Posts: 2,645

    Re: What are these two holes in rear floor pans for? (65 Mustang Coupe)

    I'd plug them with a dab of RTV, both sides.

    65 Fastback, 351W, 5-speed, 4 wheel discs, 9" rear,  R&C Front End.
     

    4/19/2021 9:39 AM  #6

    Cab4word67
    Senior 24-7 FYI Addict

    Offline

    From: Portland, Ore
    Registered: 4/06/2019
    Posts: 1,154

    Re: What are these two holes in rear floor pans for? (65 Mustang Coupe)

    WOW no I got to go look and see if I have them. Dont recall seeing them when I cleaned the floor for sound deadener and carpet.

    Slammed Big Blue, ran over the varmints that messed with the Stang. Now all is good in the NW
     

    4/19/2021 10:23 AM  #7

    Chaplin
    Senior 24-7 FYI Addict

    Offline

    Registered: 3/14/2015
    Posts: 1,027

    Re: What are these two holes in rear floor pans for? (65 Mustang Coupe)

    My car has them too, but since mine is a convertible I left them open. I figure if I ever get caught in the rain with the top down, having a drain isn't the worst idea.

    Last edited by Chaplin (4/19/2021 5:39 PM)

     

    4/19/2021 5:26 PM  #8

    MS
    Forum Originator

    Offline

    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,258

    Re: What are these two holes in rear floor pans for? (65 Mustang Coupe)

    On a 66, there are brackets under the floor that attach the parking brake cables with screws.  Not sure if they are done the same on a 65..

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    4/20/2021 2:23 PM  #9

    Nos681
    Senior 24-7 FYI Addict

    Offline

    From: Atlantic Mine, Michigan
    Registered: 7/14/2016
    Posts: 3,334

    Re: What are these two holes in rear floor pans for? (65 Mustang Coupe)

    My late 65 has 66 horseshoe parking brake cable assembly (1 piece cable).

    I don’t have the radius relief stamped in or hole on left hand side in picture.
    The hole on right hand side is inside rear frame rail.
    I used a small piece of mastic/sealer to plug hole.

    Could use strip caulk like used on gas tank.
    I didn’t have any around when I plugged it at the time.
    I have the asphalt type sound deadener over top of it.

     

    4/27/2021 1:59 AM  #10

    True74yamaha
    Senior 24-7 FYI Addict

    Offline

    From: Salt Lake City
    Registered: 5/07/2013
    Posts: 2,529

    Re: What are these two holes in rear floor pans for? (65 Mustang Coupe)

    My 1965 coupe has those same holes.

     

    4/27/2021 6:01 PM  #11

    Cab4word67
    Senior 24-7 FYI Addict

    Offline

    From: Portland, Ore
    Registered: 4/06/2019
    Posts: 1,154

    Re: What are these two holes in rear floor pans for? (65 Mustang Coupe)

    I checked my 65 coupe and I have no holes, never did??

    Slammed Big Blue, ran over the varmints that messed with the Stang. Now all is good in the NW
     

     

    1 of 1

  • Index
  •  » FYI Ford, Classic Mustang Tech Discussion
  •  »  What are these two holes in rear floor pans for? (65 Mustang Coupe)

    • Board footera


    REMEMBER!!! When posting a question about your Mustang or other Ford on this forum, BE SURE to tell us what it is, what year, engine, etc so we have enough information to go on.