drum brake backing plates 11" and column stick shift
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Joe73
76Chevelle2Tone
6 posters
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drum brake backing plates 11" and column stick shift
Looking for those pesky 11" backing plates for the rear drum brakes. There are 9 1/2 " everywhere but no 11" I guess because the previous generation didn't use them. The few used ones I've seen were in lousy condition.
Also a non-corroded column stick shift lever. This is for a Non tilt column. Thanks
Also a non-corroded column stick shift lever. This is for a Non tilt column. Thanks
76Chevelle2Tone- G3GM Member
- Street Cred : 0
Re: drum brake backing plates 11" and column stick shift
Most monte carlos have 11" rear brakes. If you column lever isnt too bad, Id soak it in white vinegar for a day or two then rinse it off. It will remove the rust. Not perfect but should be an improvement.
Joe73- Donating Member
- Street Cred : 83
76Chevelle2Tone likes this post
Re: drum brake backing plates 11" and column stick shift
Oxalic acid is better. Should be able to order it online or through any compounding pharmacy. Both this and vinegar (acetic acid) are organic acids and work on rust without eating away at steel like muriatic acid (hydrochloric acid) would. An old reliable is naval jelly which uses phosphoric acid as its active ingredient. It works well and is quicker than any organic acid but leaves a black phosphate coating which some opining is unappealing.Joe73 wrote:If you column lever isnt too bad, Id soak it in white vinegar for a day or two then rinse it off. It will remove the rust. Not perfect but should be an improvement.
zucchi- G3GM Member
- Street Cred : 4
Re: drum brake backing plates 11" and column stick shift
Zucchi
Is oxalic acid used in the same way as the vinegar? If not what is the application process? Are there any hazards to its use? Thanks
Is oxalic acid used in the same way as the vinegar? If not what is the application process? Are there any hazards to its use? Thanks
76Chevelle2Tone- G3GM Member
- Street Cred : 0
Re: drum brake backing plates 11" and column stick shift
Pure oxalic acid is a powder and to use it, you must dissolve it in water.76Chevelle2Tone wrote:Zucchi
Is oxalic acid used in the same way as the vinegar? If not what is the application process? Are there any hazards to its use? Thanks
A good detailed article can be found at https://azrust.com/oxalic-acid-for-rust-removal/.
I personally prefer to rinse a treated part with a mild sodium bicarbonate (baking soda) solution to neutralize any residual acid before I do a final rinse with very hot clean water. I say hot because that will heat the metal and allow it to try more quickly so as to prevent rust formation on your freshly de-rusted metal.
zucchi- G3GM Member
- Street Cred : 4
76Chevelle2Tone likes this post
Re: drum brake backing plates 11" and column stick shift
Joe73 wrote:Most monte carlos have 11" rear brakes. If you column lever isnt too bad, Id soak it in white vinegar for a day or two then rinse it off. It will remove the rust. Not perfect but should be an improvement.
only 76/77 had 11" brakes
1973 454 MONTE- Donating Member
- Street Cred : 36
Re: drum brake backing plates 11" and column stick shift
1973 454 MONTE wrote:only 76/77 had 11" brakes
These were for 3-3/4" and 4" wide drums.
Furthermore, according to RockAuto:
CHEVROLET CHEVELLE — 1973
CHEVROLET EL CAMINO — 1973-1977
CHEVROLET LAGUNA — 1973-1976
CHEVROLET MALIBU — 1973-1977
But these were only for 3-3/4" wide drums.
zucchi- G3GM Member
- Street Cred : 4
Re: drum brake backing plates 11" and column stick shift
By the way, looks like 1976 had unique rear baking plates:
18001257 - LH
18001258 - RH
For 1977 on, they were:
18002392
18002393
Check out the parts catalog: http://www.gmpartswiki.com/getpage?pageid=97445
18001257 - LH
18001258 - RH
For 1977 on, they were:
18002392
18002393
Check out the parts catalog: http://www.gmpartswiki.com/getpage?pageid=97445
zucchi- G3GM Member
- Street Cred : 4
Re: drum brake backing plates 11" and column stick shift
zucchi wrote:By the way, looks like 1976 had unique rear baking plates:
18001257 - LH
18001258 - RH
For 1977 on, they were:
18002392
18002393
Check out the parts catalog: http://www.gmpartswiki.com/getpage?pageid=97445
I looked in my parts manual and you are right. I give up. GM has defeated me again with nonsensical changes.
76Chevelle2Tone- G3GM Member
- Street Cred : 0
Re: drum brake backing plates 11" and column stick shift
zucchi wrote:1973 454 MONTE wrote:only 76/77 had 11" brakes
These were for 3-3/4" and 4" wide drums.
Furthermore, according to RockAuto:
CHEVROLET CHEVELLE — 1973
CHEVROLET EL CAMINO — 1973-1977
CHEVROLET LAGUNA — 1973-1976
CHEVROLET MALIBU — 1973-1977
But these were only for 3-3/4" wide drums.
Not sure I understand why Montes have 3 3/4 and 4 inch wide drums. Also the repro 11 76-77 drums I've seen seem to be either 3 1/4 or 4 inch. Is the difference between 3 3/4 and 4 inch meaningful? In other words for the 76-77 Malibu do 4 inch wide drums fit?
76Chevelle2Tone- G3GM Member
- Street Cred : 0
Re: drum brake backing plates 11" and column stick shift
zucchi wrote:1973 454 MONTE wrote:only 76/77 had 11" brakes
These were for 3-3/4" and 4" wide drums.
Furthermore, according to RockAuto:
CHEVROLET CHEVELLE — 1973
CHEVROLET EL CAMINO — 1973-1977
CHEVROLET LAGUNA — 1973-1976
CHEVROLET MALIBU — 1973-1977
But these were only for 3-3/4" wide drums.
i was talking about MONTE CARLO having 9.5 brakes 73-75 and 76/77 having 11"
1973 454 MONTE- Donating Member
- Street Cred : 36
Re: drum brake backing plates 11" and column stick shift
I can't see the picture very clearly but generally the backing plates are an inch or so wider than the drums. As best as I can tell those backing plates look sized for 9.5" brake drums
76Chevelle2Tone- G3GM Member
- Street Cred : 0
Re: drum brake backing plates 11" and column stick shift
___________________________________________
1977 Chevelle SE x2
One Mild original
one Wild NON original
Anthony
Limey SE- Management
- Street Cred : 97
Re: drum brake backing plates 11" and column stick shift
I have had these off the car for maybe 5+ years.
I have a "bolts" bin......I am sure they are muddled in there with the other 200 automotive bolts accumulated over the years.
I would not know where to start.
Mark
I have a "bolts" bin......I am sure they are muddled in there with the other 200 automotive bolts accumulated over the years.
I would not know where to start.
Mark
impalamonte- G3GM Enthusiast
- Street Cred : 18
Limey SE likes this post
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