1999 bonneville front left transmission mount

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cmm1446
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Joined: Sat Jun 09, 2018 4:00 pm
Year and Trim: 1999 Pontiac Bonneville SLE

1999 bonneville front left transmission mount

Post by cmm1446 »

I am replacing the transmission mount on my gfs bonneville and I can’t seem to finds any info on how to properly do the mount for this location if anyone could give me some steps on how to remove it that would be great

Part # 22175154

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KM AXer
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Year and Trim: 1993 SSE Medium Garnet Red Metallic, Gray
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Re: 1999 bonneville front left transmission mount

Post by KM AXer »

Cool little shock attached, that is not on my '93.

I replaced the same location mount twice, because once I got a crapola part that lasted less than a year.

Seems to me that you will need to lift the engine a bit, I believe that I used a crane on top. A jack underneath (with a board to spread the load) might also work.
Remove the nuts/bolts, and add extra height if needed to clear the studs.

Here is the best advice I can give you: Before you install the new one, compare the old and new items very carefully. Measure the distances between mount holes and studs if necessary, so that you are certain that the replacement matches the original. On my first replacement job, the bolts just wouldn't thread in. Turned out that it was ever so slightly off dimensionally, and just would not fit! Talk about frustration. The next one was a perfect match, it just didn't last.....

Good luck, and maybe someone who knows that specific mount will chime in next....
Alan Sheidler

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MKMike
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Re: 1999 bonneville front left transmission mount

Post by MKMike »

I had 1st bought the Anchor brand mount, which was so poorly made, the bolt holes were drilled wrong, so it couldn't be installed.
Returned that and ordered the Westar brand mount which installed the way it should.

Use a jack and a piece of wood between the jack and the oil pan to support the engine so the mount can be removed and installed.
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95naSTA
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Re: 1999 bonneville front left transmission mount

Post by 95naSTA »

MKMike wrote:Use a jack and a piece of wood between the jack and the oil pan to support the engine so the mount can be removed and installed.
I've done it this way as well.

If you get a non-shock mount, drill a hole and throw a grade 8 bolt through it, it'll last. Some say you need bushings or you'll get vibrations. I didn't use any and didn't have any noticable vibes.
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