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Old 03-28-2020, 10:43 AM   #1
Lforter
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Question regarding changing transmission mounts?

I am the owner of an e46 automatic 325 05 cabrio, with all the quarantine going on I have the time to replace some things, I was wondering if all the car is needed to be jacked up (4 points) in order to change transmission mounts or can I jack just the front of the vehicle (2 jack stands on each side of the front) and a jack and a block of wood holding the trans? I am afraid the trans will come off because the car is not leveled (tilted?) and a jack is not enough.

I dont have 4 jack stands, that's the reason I am not doing it leveled...
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Old 03-28-2020, 11:13 AM   #2
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I would have the car up on all 4 corners. You can use ramps either on the front or back and jack stands on the other end, if you have them.
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Old 03-28-2020, 12:24 PM   #3
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The motor mounts hold the engine in position, the trany's bell housing is bolted to the engine, so its not going anywhere. All you need to do is support the trany to re/re the mounts. Just don't jack it up like crazy, just enough to do what you need to, same goes when dropping it, slow and easy.
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Old 03-28-2020, 12:30 PM   #4
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Quote:
Originally Posted by Lforter View Post
I am the owner of an e46 automatic 325 05 cabrio, with all the quarantine going on I have the time to replace some things, I was wondering if all the car is needed to be jacked up (4 points) in order to change transmission mounts or can I jack just the front of the vehicle (2 jack stands on each side of the front) and a jack and a block of wood holding the trans? I am afraid the trans will come off because the car is not leveled (tilted?) and a jack is not enough.

I dont have 4 jack stands, that's the reason I am not doing it leveled...
As long as you can fit you are fine, but Id get the jack stands. You will use them.
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Old 03-28-2020, 05:24 PM   #5
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I have the intention to buy the rest of the jack stands. When the quarantine is over I will do it, meanwhile I will tackle this DIY tomorrow w only 2 jacks on the front. Thanks guys.
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Old 03-28-2020, 05:28 PM   #6
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Believe it or not not all jack stands are the same height. If you ever want the car perfectly level you might try to get the same brand when you buy them.


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Old 03-28-2020, 05:40 PM   #7
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One last note..make sure you chock both rear wheels securely in position after you raise it to full height!
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Old 03-28-2020, 05:48 PM   #8
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One tip for you: If the nuts holding the mounts to the transmission are too tight to get loose, use a box end 13mm wrench on the nut and a 1/2" breaker bar on the other end of the wrench.
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Old 03-28-2020, 06:56 PM   #9
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Originally Posted by Lforter View Post
I have the intention to buy the rest of the jack stands. When the quarantine is over I will do it, meanwhile I will tackle this DIY tomorrow w only 2 jacks on the front. Thanks guys.
Not sure where you are, but around here car repair is an "essential service" so if you are leaving the house for food, then picking up jack stands as well might not be an issue.
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Old 03-28-2020, 07:36 PM   #10
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Not sure where you are, but around here car repair is an "essential service" so if you are leaving the house for food, then picking up jack stands as well might not be an issue.
And also...amazon.
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Old 03-28-2020, 09:30 PM   #11
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And also...amazon.

just make sure u disinfect the box before touching
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Old 03-29-2020, 07:46 AM   #12
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Depending on what trans you have, the higher you can get the car, the easier your life will be - I just did the mounts on my '02 sedan with the GM trans, and I couldn't utilize the same trick that 50's kid did on his ZF auto, simply because the clearances are slightly different between the two cars.

I ended up dropping the back half of the exhaust, pushing the heat shield back and using a 13MM wrench and some brute strength to get the top nuts loose. That also meant I just had to guesstimate how much force I was putting into it when I put them back on, since I couldn't get a torque wrench in there either w/o having to drop the driveshaft, which wasn't something I had the spare lock nuts to do

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Old 03-29-2020, 08:57 PM   #13
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Depending on what trans you have, the higher you can get the car, the easier your life will be - I just did the mounts on my '02 sedan with the GM trans, and I couldn't utilize the same trick that 50's kid did on his ZF auto, simply because the clearances are slightly different between the two cars.

I ended up dropping the back half of the exhaust, pushing the heat shield back and using a 13MM wrench and some brute strength to get the top nuts loose. That also meant I just had to guesstimate how much force I was putting into it when I put them back on, since I couldn't get a torque wrench in there either w/o having to drop the driveshaft, which wasn't something I had the spare lock nuts to do
Holy moly, I have the same automatic gm trans, it's ****ing tight in there, couldn't get it off, I sprayed some lubricant oil and gona let it sit all night, there's literally no space and im trying to reinvent myself in a proper way to loose thos top nuts.

My mounts were compeltely broken in half btw
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Old 03-30-2020, 05:09 AM   #14
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Holy moly, I have the same automatic gm trans, it's ****ing tight in there, couldn't get it off, I sprayed some lubricant oil and gona let it sit all night, there's literally no space and im trying to reinvent myself in a proper way to loose thos top nuts.

My mounts were compeltely broken in half btw
It was a pain, for sure- I just got a 13on and braced myself against the car & did it little by little. A friend leant his leverage for one of them too. Once they're free, it's not bad, since you dont unscrew completely
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Old 03-30-2020, 05:35 AM   #15
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just make sure u disinfect the box before touching

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Old 03-30-2020, 05:44 AM   #16
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Yes. Several have done this job.
Well, if somebody could help with a tip, I'm all ears. The only thing I could think of is removing the exhaust and heatshields. Not sure this job is worth all that though.

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Old 03-30-2020, 05:51 AM   #17
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Holy moly, I have the same automatic gm trans, it's ****ing tight in there, couldn't get it off, I sprayed some lubricant oil and gona let it sit all night, there's literally no space and im trying to reinvent myself in a proper way to loose thos top nuts.

My mounts were compeltely broken in half btw
I ended up using a stubby 13mm wrench and maybe a hammer to break it free (dont recall exactly). Not sure if there is another way (besides removing exhaust). If you have an extra normal length 13 laying around you could cut it down.

https://www.homedepot.com/p/Husky-Me...PCMM/202934539

https://www.amazon.com/GearWrench-St.../dp/B000HBC7EO
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Last edited by LeverThis; 03-30-2020 at 06:03 AM.
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Old 03-30-2020, 07:34 AM   #18
sefeing
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Originally Posted by LeverThis View Post
I ended up using a stubby 13mm wrench and maybe a hammer to break it free (dont recall exactly). Not sure if there is another way (besides removing exhaust). If you have an extra normal length 13 laying around you could cut it down.

https://www.homedepot.com/p/Husky-Me...PCMM/202934539

https://www.amazon.com/GearWrench-St.../dp/B000HBC7EO
This would help, probably letting you get an extension + a breaker bar in there for some torque. It's a pain, it really is... especially on the GM transes
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Old 03-30-2020, 08:08 AM   #19
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Old 03-30-2020, 08:16 AM   #20
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I've done it twice. Once on my e46 and once on my e36. I was doing a manual. For more flexibility with the lift loosen the front top motor mounts. Leave the nut on the mount. Once you've done the tranny, retighten up the motor mounts using extensions.
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