1967 Transmission Mount Shim?

[Joe L.]

Re: 1967 Transmission Mount Shim?

Rich,
My 67 doesn't have side pipes and during my resto I ordered mounts from LIC. when I put the bracket that holds the pipes, the pipes hit the frame where the go thru the cross member. The mount was just to high... I went to the local auto parts and bought one that was 1/8 from top to bottom, the correct mount! everything now fits perfect. NOW I called LIC and they said there was a mount for the sidepipe car that was a bit taller that took up the space of the bracket that held the rear exhaust pipes that went thru the cross member. They assured me that they could not have made a mistake and sent the wrong part! I ate that one but the auto parts store mount was 1/2 the cost of the wrong one sent from LIC. I have it in the box and you are welcome to it or I can at least measure it. It was 1/8 taller than the correct mount.


DOM

Dom-------

If what you're referring to is the transmission mount, I have no information that a different and specific mount was used for C2 with side exhausts.

[Domenic T.]

Re: 1967 Transmission Mount Shim?

Rich,
Having problems with posting photo's but will try. The mount looks exactly like a stock mount but is 1/8" taller. I first thought it would squish to size but then remembered they don't squish for years. I will try and get the measurement (hight). I still have it in the box but as LIC said "they don't make mistakes". I will get some info .

Dom

[Richard M.]

Re: 1967 Transmission Mount Shim?

Rich,
My 67 doesn't have side pipes and during my resto I ordered mounts from LIC. when I put the bracket that holds the pipes, the pipes hit the frame where the go thru the cross member. The mount was just to high... I went to the local auto parts and bought one that was 1/8 from top to bottom, the correct mount! everything now fits perfect. NOW I called LIC and they said there was a mount for the sidepipe car that was a bit taller that took up the space of the bracket that held the rear exhaust pipes that went thru the cross member. They assured me that they could not have made a mistake and sent the wrong part! I ate that one but the auto parts store mount was 1/2 the cost of the wrong one sent from LIC. I have it in the box and you are welcome to it or I can at least measure it. It was 1/8 taller than the correct mount.


DOM

Rich,
Having problems with posting photo's but will try. The mount looks exactly like a stock mount but is 1/8" taller. I first thought it would squish to size but then remembered they don't squish for years. I will try and get the measurement (hight). I still have it in the box but as LIC said "they don't make mistakes". I will get some info .

Dom

Dom, If you'd like you could email me the photos and I could post them here for you. richmz comcast net

I looked on LIC's site and couldn't find anything other than the stock mount. #38-05

Rich

[Joe L.]

Re: 1967 Transmission Mount Shim?

Attached are photos of an NOS GM #3913498 [not for sale]. This is the 1969-82 mount which in July 1974 also replaced the 1964-67 mount, GM #3792133, for SERVICE. This mount is exactly 1.85" in height and 2.25" in width.

DSCN3159.jpgDSCN3160.jpgDSCN3161.jpgDSCN3162.jpg

[Joe L.]

Re: 1967 Transmission Mount Shim?

A few more photos of the above:


DSCN3163.jpgDSCN3164.jpg

[Richard M.]

Re: 1967 Transmission Mount Shim?

Attached are photos of an NOS GM #3913498 [not for sale]. This is the 1969-82 mount which in July 1974 also replaced the 1964-67 mount, GM #3792133, for SERVICE. This mount is exactly 1.85" in height and 2.25" in width.

A few more photos of the above:

Joe Thanks for those photos. Those measurements seem to be what the LIC part shows in their photos. A bit hard to see the tape measure but looks to be close to yours.

Do you know if the 3792133 had those same measurements as the 3913498?

Rich

[Domenic T.]

Re: 1967 Transmission Mount Shim?

Rich,
My mount measured the same as Joe's. I was told that there were 2 different mounts. One for side pipes and the other for rear exhaust.
The 1.850 mount would not work for me but the other did. I found a note I wrote and it said the mount I needed was about 1.625. The one I bought at the local parts was close to 1.625 but I didn't write down the exact measurement. Now I'm a bit confused and would have thought I was dreaming but I bought one of each and have the 1.625 installed and the 1.850 in a box with my note.

Dom

[Richard M.]

Re: 1967 Transmission Mount Shim?

Dom, Interesting....Do you happen to have the Parts Store receipt and their part#?

Rich

[Joe L.]

Re: 1967 Transmission Mount Shim?

Joe Thanks for those photos. Those measurements seem to be what the LIC part shows in their photos. A bit hard to see the tape measure but looks to be close to yours.

Do you know if the 3792133 had those same measurements as the 3913498?

Rich

Rich------


I can't say, for sure, since I do not have an NOS GM #3792133 (yet). However, I would expect that dimension was the same or very nearly the same.

Curiously, 1963 originally used a different mount. It was originally GM #3781950. That was replaced by GM #3870182 in December, 1965. In late 1982 the 3870182 was discontinued and replaced by the GM #3913498.

[Richard M.]

Re: 1967 Transmission Mount Shim?

Rich------


I can't say, for sure, since I do not have an NOS GM #3792133 (yet). However, I would expect that dimension was the same or very nearly the same.

Curiously, 1963 originally used a different mount. It was originally GM #3781950. That was replaced by GM #3870182 in December, 1965. In late 1982 the 3870182 was discontinued and replaced by the GM #3913498.

Thanks Joe, Just found this one on Ebay...A tad pricey though($359.95 plus Shippng). This is the service replacement right? Stamped color codes? Maybe a paint splotch ID after assembly?

$_57.JPG $_57.JPG $_57.JPG $_57.JPG

[Joe L.]

Re: 1967 Transmission Mount Shim?

Thanks Joe, Just found this one on Ebay...A tad pricey though($359.95 plus Shippng). This is the service replacement right? Stamped color codes? Maybe a paint splotch ID after assembly?

[ATTACH=CONFIG]63719[/ATTACH] [ATTACH=CONFIG]63720[/ATTACH] [ATTACH=CONFIG]63721[/ATTACH] [ATTACH=CONFIG]63722[/ATTACH]

Rich------


I don't think this is a 3792133. Most likely, it's a GM #3913498. Usually, the actual part number on these multi-part numbered mounts is indicated by a colored crayon drag over the part number. In this case, I think the seller thinks it's a 3792133 because there is no colored crayon marking (i.e. it's "black" and, therefore, a 3792133). However, there does appear to be a yellow mark although it's not over the 3913498 part number as it should be. Otherwise, it might just be that the crayon mark has "dissipated" over time.

Another reason I don't think it's a 3792133: note that one of the part numbers embossed on the rubber is 14018920. This part number was used for 1982 Corvettes and did not even exist until 1981. So, that means that this mount was manufactured in 1981 or later, long after the 3792133 ceased to be manufactured. I expect that the 3792133 embossment on this piece amounts to an anachronism.

This mount is definitely a SERVICE piece, although a PRODUCTION piece would have been identical. Of course, given its time of manufacture, I don't think that any PRODUCTION application existed for that time and, certainly, no Corvette application.

[Richard M.]

Re: 1967 Transmission Mount Shim?

Thanks Joe.

Someone sent me these photos of two mounts for more reference. Note these have only the part #'s 3792133 & 3913498, on both sides. I think this is similar to the mount you have, both used, yours NOS.

Hard to see but same numbers on opposite side. I can see them when magnified. I'm told 1.890" thickness/height.
IMG_0921.jpg

This one has the yellow crayon mark on the side.
IMG_0927.jpgIMG_0929.jpg

Rich

[Domenic T.]

Re: 1967 Transmission Mount Shim?

Rich,
Auto zone and I will get the part #. It was Anchor/ made in Korea.

Dom

[Domenic T.]

Re: 1967 Transmission Mount Shim?

OK,
Finally got things straight. LIC sent the Anchor- Korea mount that was 1.850 tall, it had a number cast on the rubber 2378. Auto Zone sold me the one that fit and it was Duralast and had 2360 on the box. Both were not made in the US. I beleive it was Auto Zone that told me that theirs was the right one for the car. They all say that but this was a old timer and my thoughts is that when I said I needed the mount for the vette without side pipes, he may have fount 2 different mounts.

DOM

[John H.]

Re: 1967 Transmission Mount Shim?

OK,
Finally got things straight. LIC sent the Anchor- Korea mount that was 1.850 tall, it had a number cast on the rubber 2378. Auto Zone sold me the one that fit and it was Duralast and had 2360 on the box. Both were not made in the US. I beleive it was Auto Zone that told me that theirs was the right one for the car. They all say that but this was a old timer and my thoughts is that when I said I needed the mount for the vette without side pipes, he may have fount 2 different mounts.

DOM

Dom -

The GM #3792133 transmission mount was used on the assembly line for all Corvette applications in '64, '65, '66, and '67; any other GM part number mount was a SERVICE piece. I'm sure you also know that there were TWO of the "oxbow" pipe supports that support the under-car exhaust pipes where they go through the crossmember - one for 2" pipes, and one for 2-1/2" pipes. If you use a 2" oxbow support with 2-1/2" pipes, the pipes will hit the bottom of the holes in the crossmember.