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#26 |
Registered User
Join Date: Nov 2015
Location: Colfax California
Posts: 1,644
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Re: No tranny mount on my TH400? 70' c10
From what I gather reading and looking at Google images, the transmission should have a mount at the crossmember and the tail shaft. Does it matter when I'm getting parts that I have a TH400 instead of TH350
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#27 |
Registered User
Join Date: Mar 2015
Location: Utah
Posts: 750
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Re: No tranny mount on my TH400? 70' c10
That is the correct mount, and i am not sure, but i believe it does not matter if you have a t350 or t400. I do recommend, however, that you buy a polyurethane mount, like one from energy-suspension, they last longer, and in my opinion are much better.
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#28 |
Registered User
Join Date: Oct 2009
Location: San Diego, CA
Posts: 39
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Re: No tranny mount on my TH400? 70' c10
So was the engine leaning back against the firewall? This is wild!
__________________
69 GMC shortbed Carbed LM4 - Manual VB TH350 - Gear Vendors OD |
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#29 |
Registered User
Join Date: Nov 2015
Location: Colfax California
Posts: 1,644
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Re: No tranny mount on my TH400? 70' c10
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#30 |
Registered User
Join Date: May 2014
Location: Manteca, Ca.
Posts: 274
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Re: No tranny mount on my TH400? 70' c10
Is the trans mount broken or just missing the bolts?
When you were getting on it before you tore it down, did it vibrate or make a thumping noise like the trans was hitting the body underneath? Were there vibrations on acceleration or deceleration? For me, as far as the trans mount, I would not go to a urethane mount unless you go with the same urethane type motor mounts. The engine and trans needs to be able to move with each other. If you have a urethane trans mount (stiff) and rubber motor mounts (not as stiff) you take a chance on cracking the trans tail shaft housing.
__________________
Terry Soon to be retired and moving to Bristol, TN. |
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#31 | |
Registered User
Join Date: Mar 2015
Location: Utah
Posts: 750
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Re: No tranny mount on my TH400? 70' c10
Quote:
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#32 | |
Registered User
Join Date: Nov 2015
Location: Colfax California
Posts: 1,644
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Re: No tranny mount on my TH400? 70' c10
Quote:
There was a bad vibration any time I went over 55-60. And no thumping except for when I would manually shift and hold a gear at high RPM's and then floor it (like racing from a roll) and on major deceleration. |
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