Front left manual motor mount

[themixer]

car is a 1991 beretta 5 speed swapped

I am getting some mixed answers to this question

Are these mounts the same between manual and automatic?


-David Hill believes the are the same
-Dealership shows 2 part numbers but it may be a revision part number they believe it may be the same, both are discontinued
-no aftermarket listing for a manual mount as far as tell.
-from my eyeballing it, i am unable to take the mount off at the moment for comparison it looks the same.

[Stencil]

I can tell you for sure that the brackets on the engine which attach to the mount are different between auto and manual (they even say it on the bracket). I believe the large mount that's over the trans is specific, but I don't believe that the front and rear mount are different. If the mount is different, they will interchange without issue. I've done 4 or 5 Beretta auto > 5 speed conversations, and while my memory is a little fuzzy (they were 10-13 years ago), I do know that I never sold anyone or picked any mounts when I swapped them over.

[themixer]

-the mount over the trans is 100% swapped over and different
-the mount and mounting bracket is 100% different on the left rear of the engine

This only leaves this one front mount, i am going to get the engine lift back and compare mine to the new auto one on the car. If they are the same this is going to solve this mystery once and for all!

I can try to type this up into a sticky so this never happens to anyone else!

[1988GTU]

Did ya see my post here?

http://www.beretta.net/viewtopic.php?p=131462#p131462

[themixer]

Did see your post also. I could be reading the parts listing wrong, but I don't see the mount I need for manual, they call it the rear L shaped.

[Rettax3]

Ahhh, okay, here we are. Upper trans mount is different auto vs manual, as everyone here is saying and already knows.

Rear engine mount (um, that would be the right side, NOT the left) is also different manual vs automatic.

The rubber-isolated part for the right front that bolts onto the frame is the same, which means that the aluminum engine-side of the mount MUST be different auto vs manual, because the reason that the other ones are different is that the engine is shifted forward/backward in the bay by a fraction of an inch depending auto vs manual. I don't remember which one is farther forward though, sorry.

Why would that one matter though, since you have a custom engine-side front mount for your 3X00 swap?

[1988GTU]

The rubber-isolated part for the right front that bolts onto the frame is the same, which means that the aluminum engine-side of the mount MUST be different auto vs manual, because the reason that the other ones are different is that the engine is shifted forward/backward in the bay by a fraction of an inch depending auto vs manual. I don't remember which one is farther forward though, sorry.

This.

Why would that one matter though, since you have a custom engine-side front mount for your 3X00 swap?

I mentioned this.

[themixer]

That's all I want to know is if the rubber mount pictured up top is the same manual vs auto

Every other mount/bracket is already confirmed different

[woody90gtz]

What is the difference in the upper trans mount? I have read they are the same auto/manual other than rubber durometer...but I believe this is incorrect. I just had to modify my billet upper mount to get axle alignment correct with the 5spd. (Pics in my build thread). It appears to be about 5/8 to 3/4"?

[88_GTU]

I didn't think the upper trans mount was different but the bracket was.
J

[themixer]

This is terrible news, as the only manual mount i have is shot. I use to see years ago people fill these with urethane, is this a feasible option? any ideas of how to fix this properly? or am i on the quest for a 25 year old junk yard part, or have the mount made of steel by a fabrication shop. I would prefer as oem luxury drive as possible, as I am not much of a street racer.

There isn't a single place to order this part I have looked it seems everywhere. I want my axles 100% in alignment, i dislike any car vibration, shimmy or suckyness.

Thanks for the reply woody90gtz

[88_GTU]

You can fill your mount with poly from mcmaster-carr. It only costs about $30 for a can that is more than enough for 3 mounts. Just make sure you thoroughly clean the oil, dirt, and grime from the rubber so the poly adheres well and also give it 2 days to cure. It says 24hrs but as I found out it's best to give it extra time. If you want to keep the mount stock-feeling go with 60 shore. If you feel like upgrading you're mounts a bit go for 80 or 94 shore.

http://www.mcmaster.com/#urethane-casti ... ds/=sqpusx

Hope this helps
J

[1988GTU]

http://www.beretta.net/download/file.ph ... &mode=view
For front ps:
#1 are same manual to auto.

#2 is the difference.

[themixer]

I really have no idea what your diagram is showing.

[3X00-Modified]

It's showing that the part you are assuming has to be filled with urethane is the same manual to auto... so you should be able to get a different one from another car. Or a new one. it's the engine bracket that differs between auto and manual.