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#1 |
Senior Member
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Location: Alamogordo, NM
Posts: 707
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Rubber Door Bumpers
How many bumpers are installed on each door? My truck has three holes. My truck's pre-disassembly photos show the top and middle holes having the bumpers installed. The photos don't include the area that has the very lower hole so I cant be sure if it was installed. LMC shows two bumpers, at the middle and lower holes.
Any ideas?
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1966 C10 Custom Cab Restomod (Sold) 1969 Camaro Z/28 (Keeper) Current Build: 1968 C10 (Semi-Factory Restoration) 1983 Camaro Z/28 (Next in line, Keeper) 1951 3100 (2nd in line) Last edited by damnyankee36; 04-17-2024 at 07:29 AM. |
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#2 |
All stock and staying that way
![]() Join Date: Jul 2003
Location: Elkland, PA
Posts: 1,456
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Both my 1970 Blazer and 1972 Cheyenne had those bumpers at the top and bottom location only. Nothing in the middle.
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1970 K/5 Blazer CST 4WD, Bronze, 93k ACT. miles, 350, 4 speed, positraction, 16.5" x 8.25" wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration in progress... ![]() 1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor... ![]() 2017 Sierra 1500 SLT 4WD, Black, 41k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2... 2019 Canyon SLT 4WD, White, 60k miles, 3.6, 8L45, 3.23 LS, 18" wheels |
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#3 |
All stock and staying that way
![]() Join Date: Jul 2003
Location: Elkland, PA
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Some original trucks from Bring A Trailer:
1970 K20: ![]() 1969 K10: ![]() ![]() 1972 C20: ![]() 1972 K20: ![]() 1972 C20: ![]()
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1970 K/5 Blazer CST 4WD, Bronze, 93k ACT. miles, 350, 4 speed, positraction, 16.5" x 8.25" wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration in progress... ![]() 1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor... ![]() 2017 Sierra 1500 SLT 4WD, Black, 41k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2... 2019 Canyon SLT 4WD, White, 60k miles, 3.6, 8L45, 3.23 LS, 18" wheels |
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#4 |
Senior Member
![]() Join Date: Sep 2002
Location: Alamogordo, NM
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Re: Rubber Door Bumpers
Interesting... All the 69 and up trucks above show the top and bottom locations with bumpers but no middle hole.
1970cstblazer, I also assume your trucks had no middle holes? Wonder if it's a 68 and maybe a 67 thing? If have to check my stash of the removed parts to see if there a total of six bumpers. I'll probably use all six holes. Thanks guys. Anymore input?
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1966 C10 Custom Cab Restomod (Sold) 1969 Camaro Z/28 (Keeper) Current Build: 1968 C10 (Semi-Factory Restoration) 1983 Camaro Z/28 (Next in line, Keeper) 1951 3100 (2nd in line) |
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#5 |
Registered User
Join Date: Mar 2016
Location: Rugby.UK
Posts: 42
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Re: Rubber Door Bumpers
My 67 has the three holes but I find that the rubber in the middle rubber keeps getting broken. maybe its just my fat butt catching it.
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#6 |
Senior Member
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Location: CA
Posts: 5,468
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Re: Rubber Door Bumpers
My '68 has the top and middle bumpers, but there is no hole in the rocker panel for a bottom bumper. I believe the rocker panels are original.
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#7 |
Senior Member
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Location: Alamogordo, NM
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Re: Rubber Door Bumpers
I just thought of something. The rockers on mine are repros. I would image my original bumpers broke upon removal as I don't have them in my stash and no photos of that area.
I'm going to assume it didn't have the lower bumper. I can't see a pattern as what years had what...
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1966 C10 Custom Cab Restomod (Sold) 1969 Camaro Z/28 (Keeper) Current Build: 1968 C10 (Semi-Factory Restoration) 1983 Camaro Z/28 (Next in line, Keeper) 1951 3100 (2nd in line) |
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#8 | |
Senior Member
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Location: Tucson, AZ USA
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Re: Rubber Door Bumpers
Quote:
I know my rockers are original -- they're still shot. They were solid when I bought it, but that was 51 years ago. At least I had the fun of splashing thru the surf on both coasts. Looking for the Licorice Dots on my '67 K/10 Suburban, I was surprised to find only two. Upper and Mid. Also a Fremont rig. This leads to the intriguing question: how many are behind Door Number Three? ![]() Behold: Upper and Midline on Door #3.
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Every 25 years I like to rebuild that 292, whether it needs it or not. Last edited by '68OrangeSunshine; 04-25-2024 at 07:10 PM. |
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#9 | |
Senior Member
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Location: Tucson, AZ USA
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Re: Rubber Door Bumpers
Quote:
We get Upper and Mid just like PJ.
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Every 25 years I like to rebuild that 292, whether it needs it or not. |
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#10 |
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Location: Tucson, AZ USA
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Re: Rubber Door Bumpers
Adding another post as the attachment system balks if I load too many images...
The white one is my '67 K/10.[So the Suburban has one Upper and 1 Lower. No Mid. Fremont truck.] The blue is the '71 GMC JImmy K/1500. [And it, too, has one Upper, one lower. No Mid. St Louis build.]
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Every 25 years I like to rebuild that 292, whether it needs it or not. Last edited by '68OrangeSunshine; 04-25-2024 at 07:28 PM. Reason: pix |
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#11 |
Senior Member
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Location: Texan, back in TX
Posts: 2,152
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Re: Rubber Door Bumpers
I'm getting dizzy looking at the pics in this thread.
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#12 |
Registered User
Join Date: Feb 2000
Location: Pixley, Ca.
Posts: 486
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Re: Rubber Door Bumpers
My 69 has 3. Looks like the bottom bumper doesn't stick out as far as the others. It's a CST. Wonder if trim level has anything to do with it?
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69 C-10 CST Short Fleet, Factory Air, BB427-400 Auto-2400 stall-tilt-cruise-Tach & Vac Gagues, 4/6 drop, power one piece side windows, Eaton posi. |
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#13 |
Senior Member
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Location: Texan, back in TX
Posts: 2,152
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Re: Rubber Door Bumpers
1970 C/10 St Luis, original rockers. Top and bottom bumpers no middle hole.
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#14 |
Senior Member
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Location: Ca
Posts: 496
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Re: Rubber Door Bumpers
So what is the trick to getting these little bumpers to seat? Lots of precision lube, but I tear the dang things before I get the keeper plug past the sheet metal. I have tried with lots of lube and nylon trim tool. Applied good force on head and tuck the plug in with tool. I end up ripping the shaft between the plug and head. What am I missing?
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#15 |
Senior Member
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Location: Alamogordo, NM
Posts: 707
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Re: Rubber Door Bumpers
I also use lube and push the edge of the bumper into the hole and work my way around it with a small common screwdriver.
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1966 C10 Custom Cab Restomod (Sold) 1969 Camaro Z/28 (Keeper) Current Build: 1968 C10 (Semi-Factory Restoration) 1983 Camaro Z/28 (Next in line, Keeper) 1951 3100 (2nd in line) |
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#16 |
Senior Member
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Location: Ca
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Re: Rubber Door Bumpers
I just needed to step away. Not keen on a screw driver, but the nylon trim tools worked. I took a tiny bit of the edge off the lip of the keeper with a belt sander. Maybe reduced diameter by a 10th or so. That tiny bit was night and day difference and still a solid hold.
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#17 |
Senior Member
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Location: Tucson, AZ USA
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Re: Rubber Door Bumpers
I used a pin punch with a blunt point in the hole to stretch the ''arrow'' on the end into the hole. Problem is we're not getting the same quality rubber that was original to these trucks in the '60s. The cheapest Asiatic rubber the venders can palm off on us, breaks when you try to stretch it into the hole.
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Every 25 years I like to rebuild that 292, whether it needs it or not. |
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#18 |
Senior Member
![]() Join Date: Sep 2002
Location: Alamogordo, NM
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Re: Rubber Door Bumpers
I tried the same method as you, also the same way the firewall plugs are installed, and it just punches through. Maybe there is a correct "plunger to pad" ratio that will work. Stretch it just short of poking through and the pad will do the rest.
__________________
1966 C10 Custom Cab Restomod (Sold) 1969 Camaro Z/28 (Keeper) Current Build: 1968 C10 (Semi-Factory Restoration) 1983 Camaro Z/28 (Next in line, Keeper) 1951 3100 (2nd in line) |
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#19 |
Senior Member
![]() Join Date: Feb 2022
Location: Ca
Posts: 496
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Re: Rubber Door Bumpers
Yup, tried a punch and ripped the plug at the shaft. Got one installed but had small rip. Posted above question. Then occurred to me to make the plug section smaller. Using a harbor freight copy of a Dremel benchtop belt sander, I took just a tiny bit off the edge of the plug portion of the bumper. Effectively reducing the diameter of the portion you push into the hole. It was very little. I expected i would need a second pass as i wanted to creep up on the needed change. First pass fixed the problem.
I still needed a nylon trim tool to work the plug into the hole, but it was like I would expect the part to fit. It still feels rock solid in place so I know the application is not compromised. Of course a dab of Presision rubber lube is a must. |
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#20 |
Senior Member
![]() Join Date: Dec 1999
Location: TX
Posts: 1,569
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Re: Rubber Door Bumpers
I use WD40 for the lube...
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#21 |
All stock and staying that way
![]() Join Date: Jul 2003
Location: Elkland, PA
Posts: 1,456
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Never had any issues with the installation of NOS GM bumpers. You get what you pay for.
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__________________
1970 K/5 Blazer CST 4WD, Bronze, 93k ACT. miles, 350, 4 speed, positraction, 16.5" x 8.25" wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration in progress... ![]() 1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor... ![]() 2017 Sierra 1500 SLT 4WD, Black, 41k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2... 2019 Canyon SLT 4WD, White, 60k miles, 3.6, 8L45, 3.23 LS, 18" wheels |
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#22 |
Senior Member
![]() Join Date: Sep 2002
Location: Alamogordo, NM
Posts: 707
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Re: Rubber Door Bumpers
Wow, they're still out there?
__________________
1966 C10 Custom Cab Restomod (Sold) 1969 Camaro Z/28 (Keeper) Current Build: 1968 C10 (Semi-Factory Restoration) 1983 Camaro Z/28 (Next in line, Keeper) 1951 3100 (2nd in line) |
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#23 |
Senior Member
![]() Join Date: Feb 2002
Location: Tucson, AZ USA
Posts: 7,255
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Re: Rubber Door Bumpers
The problem is NOS parts for a 56 year old truck are gonna be 56 years old too, and brittle. But Detroit rubber was a better grade than ''fresh'' Thailand rubber.
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Every 25 years I like to rebuild that 292, whether it needs it or not. |
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