3rd Gen / L98 Engine Tech 1982 - 1992 Engine Related

How do I strengthen my tranny mount.

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Old Jul 25, 2005 | 08:41 PM
  #1  
Lynk's Avatar
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How do I strengthen my tranny mount.

I have an 84 camaro with a 4 speed manual and I keep breaking the tranny mount. The motor mounts are solid as is the tranny mount. The mount only has 1 bolt though, is there a good way to make this stronger?
Old Jul 25, 2005 | 08:53 PM
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Re: How do I strengthen my tranny mount.

make a custom bracket or crossmember somehow, thats about all you can do...
Old Jul 25, 2005 | 09:19 PM
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Re: How do I strengthen my tranny mount.

upgrade to a better mount?
Old Jul 25, 2005 | 09:48 PM
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Re: How do I strengthen my tranny mount.

i'm assuming its a custom type mount? because 4 speed manuals don't come stock...
Old Jul 26, 2005 | 05:42 AM
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Re: How do I strengthen my tranny mount.

Originally Posted by klumb15
i'm assuming its a custom type mount? because 4 speed manuals don't come stock...
possibly 4 speed+ Od ?
Old Jul 26, 2005 | 11:20 AM
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Re: How do I strengthen my tranny mount.

possibly...only the owner could tell us...
Old Jul 26, 2005 | 11:37 AM
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Re: How do I strengthen my tranny mount.

Originally Posted by klumb15
i'm assuming its a custom type mount? because 4 speed manuals don't come stock...
they did in the early 3rd gens, ........not sure if 84 is early enough though........


BTW, it was a BW T-10
Old Jul 26, 2005 | 11:53 AM
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Re: How do I strengthen my tranny mount.

really....thats neat....learn something new every day. those are pretty stout tranny's aren't they?
Old Jul 26, 2005 | 11:59 AM
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Re: How do I strengthen my tranny mount.

yea early 3rd gens, including 84's had standard 4 speeds, optional 5 speeds

u can tell the 4speeds are old school, theres no hydraulic clutch (i believe) and external shift linkage
Old Jul 26, 2005 | 12:08 PM
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Re: How do I strengthen my tranny mount.

Originally Posted by respectirocz
yea early 3rd gens, including 84's had standard 4 speeds, optional 5 speeds

u can tell the 4speeds are old school, theres no hydraulic clutch (i believe) and external shift linkage
yeah, i was pretty sure it was 82-84 for the 4 speed manual, same years as the 3 speed auto
Old Jul 26, 2005 | 12:24 PM
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Re: How do I strengthen my tranny mount.

The problem is that you're running all solid mounts in a chassis that flexes every time you tap the throttle. Go to a polyurethane trans mount that will suck up some of the flex and you'll likely fix the problem.
Old Jul 26, 2005 | 12:34 PM
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Re: How do I strengthen my tranny mount.

or subframe connectors would keep the chassis from flexing....either way would work...
Old Jul 26, 2005 | 07:46 PM
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Re: How do I strengthen my tranny mount.

It is a 4 speed original tranny, I have subframe connectors, But the problem I think is that the tranny mount is the weakest link. The tires won't spin much becuase the traction bar, the Chassis won't flex becuase its as tied together as can be, there is nothing to give. I am actually a little afraid that if I did make a custom cross member and mount it on better, I'll start tearing up U-jouints, or twist the driveshaft. But I really don't like it when the transmission suddenly jumps up and tries to come through the floor!
Old Jul 26, 2005 | 10:12 PM
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Re: How do I strengthen my tranny mount.

you gotta be laying down a lot of power to start bending driveshafts, and u joints/drive shaft is alot easier to replace than fixing all the damage a broken trans mount could do...
Old Jul 27, 2005 | 06:10 PM
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Re: How do I strengthen my tranny mount.

Even with SFC's, the car will still flex. You have to keep in mind the fact that the front subframe is just stamped sheetmetal. It's not designed to handle this kind of stress. Unless you build a tube-frame, or put a full roll cage in it, it'll flex on launch and keep breaking mounts.



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