auto vs manual engine mounts

[TimF]

I was looking on extreme psi and it say for engine mounts that the manual and auto are diffrent (say A/T or M/T only in captions) does this mean I cant use mounts off a manual car on my auto? even just the same poly inserts?

 

[99gst_racer]

The M/T inserts will fit all of the A/T mounts except for the front roll stop. The A/T front roll stop is larger in diameter and the hole is more centered. Now here's the kicker. Prothane centers the hole on the front roll stop for the M/T (for some unknown reason) even though it's lower of center from the factory. So, I'm almost positive that you'd be able to source out a M/T front roll stop and install the Prothanes all the way around and it would bolt right in on your A/T. because of the centered hole from prothane, it should line up perfectly +/- 4mm. I'd bet my next paycheck that it would fit.

You should give it a try and let me know if I'm right.

 

[importracr317]

I was looking on extreme psi and it say for engine mounts that the manual and auto are diffrent (say A/T or M/T only in captions) does this mean I cant use mounts off a manual car on my auto? even just the same poly inserts?

You can use the front roll stop inserts on either one. It's the rear roll stop that's different, I believe (it's been so long since I installed mine on my auto I can't remember).

Instead of just getting inserts, you can get full poly roll-stop replacements that fits autos or manuals from black_gst. Something to think about.

Paul, are you sure? I'm not looking at my car right now, but I could've sworn I installed the inserts on the front roll stop, but the inserts for the rear were too small....

 

[99gst_racer]

The OP has a 1G, not a 2G.

And the 1G roll stops don't use inserts like 2Gs do. They get full replacements from Prothane.

 

[uncle ben]

Im almost positive the rear manual prothane is smaller than the auto mount. I will verify when I get to the shop, but I had some sleeves made for a friends auto so the manual prothanes would work.

 

[99gst_racer]

I called prothane direct and was told only the front was different. But it's definitely possible that I was given bad info. I had originally called them because their catalog doesn't mention or differentiate A/T and M/T. He said they get that call alot, so I imagine the next catalog will be revised.

 

[lumberjackracing]

I went from a auto to a manual and.the prothane kit I bought did not fit my front or rear mounts. The rear mount has too big of a hole for the new insert and the front was just completely different.

 

[TimF]

I was just planning on buying used ones off another member, with the mount included. I was just unsure if they would bolt up correctly or not. I dont see why they could not just make all the same mounts-_-

 

[TunaTalon]

I called prothane direct and was told only the front was different. But it's definitely possible that I was given bad info. I had originally called them because their catalog doesn't mention or differentiate A/T and M/T. He said they get that call alot, so I imagine the next catalog will be revised.

Yeah, that's what I thought after I bought Prothane motor mounts for my 2G auto and found that one didn't fit. But that was six years ago.

 

[uncle ben]

The manual prothane front and rear mount is for sure smaller than the auto front and rear mount. A sleeve can be made for both of them. Im pretty sure they arent using the inserts up front for a 1g anymore. Ill post a few pics this weekend.

 

[TimF]

Can't I just take the whole mount off a manual and use it on my auto?

 

[99gst_racer]

Can't I just take the whole mount off a manual and use it on my auto?

Yes, as long as you use the roll stop brackets too. You'll need the brackets and mounts, front and rear.

 

[TimF]

In another case then what would I use to sleeve it?

 

[Spanky_DSM]

Does anyone know if all the roll stop brackets are the same on 2gs.. not the mounts but the brackets that go on the transmission.. I know the one on the cross member does..

But is the one in the back of the transmission the same as well?

I want to get one off a auto gst, and use it on my 5 speed awd.

 

[Jdevil187]

Sorry for reviving and old thread, but I'm still trying to figure this out. I have a 1g auto that needs motor mounts pretty bad. I really wanted to purchase the avid kit but it's no longer available. I also have a 1g m/t car I bought for parts. Looking at the engine bay, the only mount that seems to be different is the left trans mount! From reading this thread I'm getting that I can actually swap the mounts from the m/t to the auto but will need to change the bracket also. Is this for the front stop and rear stop?

 

[lil corb]

Yes motor mount brackets are different. While installing a custom front crossmember with mount on my car ( 1g mt) I noticed it didn't fit. Looked into the Front and back brackets and the previous owner had installed auto brackets. Swapped them out for the manual ones problem fixed.