1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Are Pressed Rubber in FB Tranny Mounts replaceable?

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Old May 8, 2014 | 09:28 PM
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OH Are Pressed Rubber in FB Tranny Mounts replaceable?

I took my tranny out and sure enough the mount between the tranny and cross member was broken. No big deal, I can order that through mazdatrix.

BUT, I also noticed one of the round rubber pieces that are pressed into the cross member itself is broken. So the long bolt with washer isn't really holding the right side of the crossmember tight to the frame of the car.

Anyone ever replaced this?

Scott
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Old May 8, 2014 | 10:01 PM
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They're not pressed in, just another set of round rubber mounts. Over time they'll shape themselves into the transmission crossmember.

Black Dragon sells them and I'd think you can still get them from a Mazda dealer.
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Old May 9, 2014 | 03:01 PM
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Yep. You'll be shocked at what their original shape looks like when you see new ones for the first time.

Available, just not cheap.
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Old May 10, 2014 | 08:45 AM
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I'm pretty sure they are pressed in.

Thanks for the feedback guys, but after looking at BlackDragon, I think I might have a different crossmember. This is for an 85 GSL-SE and it looks like Mazda changed the design after 83.

The BD catalogue offers an "Insulator Washer" for 79-83. For 84-85 it only offers a "Bolt-Crossmember" and a lock washer.

It looks like mine has a pressed-in rubber insulator. Take a look at the pictures attached and tell me what you think….





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Old May 10, 2014 | 01:29 PM
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I purchased the trans cross member isolators, bolts, and big washers from the dealer for my 1985 GSL a couple of years ago when I converted for a auto to manual trans. Here it is all laid out. This is an automatic cross member but the isolators, bolts, and big washers are the same between auto and manual based on taking several apart.

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Old May 10, 2014 | 02:34 PM
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Yeah, thats weird, mine looks nothing like that. I have two long bolts that attached my crossmember to the frame, not a double ended stud thingy like you show there. Maybe its a GSL-SE thing?
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Old May 10, 2014 | 04:00 PM
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The big trans isolator also looks different on yours as compared to the one I posted. Can you post a pic of your trans?
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Old May 10, 2014 | 04:44 PM
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Color me wrong, Series 3 cross members are indeed different:

From the 84-85 parts catalog:


Compared to the 81-83:


I bet it was redesigned to be more robust than the sandwiched rubber bushings.
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Old May 10, 2014 | 05:51 PM
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Thank God! I thought I was going crazy. You should have seen me beating the crap out of that thing trying to get the old broken rubber out of there. My wife even came into the garage to see what was going on and the I said, "The guys on the forum swear these things aren't pressed in!"

And thank you for that part number. It looks like those isolators are not replaceable, so I will need the entire crossmember.

Where did you find the parts catalog? Is that online somewhere?

Thanks again guys!

Scott
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Old May 10, 2014 | 07:49 PM
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Those numbers in the pics aren't the complete part numbers, but you can download PDF copies of the catalogs at Foxed.ca
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Old May 10, 2014 | 08:07 PM
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I stand corrected also - I thought the S3 manual and auto trans used the same hardware. I was wrong.
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Old Aug 16, 2017 | 01:08 PM
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bumping this old thread back up. anyone still making replaceable bushings for the 84/85 tranny mounts?
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Old Aug 17, 2017 | 07:57 AM
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Do you mean these:



or the rubber around the bolts that go into the underside of the body?
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Old Aug 17, 2017 | 08:01 AM
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unfortunately not those. yes, the outer ones that hold it to the body. kentetsu found a place called shookmotorsports but doesn't seem like they are in business any more.
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Old Aug 18, 2017 | 09:24 AM
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Originally Posted by craaaazzy
unfortunately not those. yes, the outer ones that hold it to the body. kentetsu found a place called shookmotorsports but doesn't seem like they are in business any more.
You can make some with sway bar link bushings and some bolts.
Now that I think of it I may have done this back when I did the
clutch (1991?). Too long ago to remember.
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