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T-5 Transmission Mount
#689931 Thu Oct 28 2010 06:02 PM
Joined: Sep 2003
Posts: 1,827
Shop Shark
I have a T-5 transmission installed in my truck, but need to mount the tail on the cross member. The best thing I see that I can do is notch the stock cross member and weld an S-10 Blazer or pickup mount in the cross member, then using the correct rubber connector mount. Here's my question - can that metal piece be bought somewhere so I can weld it into my existing cross member?

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Re: T-5 Transmission Mount
6cylindersovertexas #690055 Fri Oct 29 2010 02:34 AM
Joined: Oct 2003
Posts: 5,161
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Assuming an original six and light loads you don't need that rear cross member.

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Re: T-5 Transmission Mount
OldSub #690126 Fri Oct 29 2010 07:07 AM
Joined: Dec 2004
Posts: 1,899
Shop Shark
I agree with Steve. The transmsission tail mount was used for the torque tubes. When gm did away with the torque tubes the transmission just hung off the bellhousing without any rear support. The 55-59 years were done this way.

Re: T-5 Transmission Mount
bigbadswingdaddy #690288 Fri Oct 29 2010 09:04 PM
Joined: Jun 2004
Posts: 8,287
Master Gabster
The old cast iron fat trans. hung like that without a crossmember but i'd never let that long skinny alum. one hang by it's self. I've done 3 T-5 changeovers & alway's put a universal crossmember under it. Look at all the braces it has from the factory.

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Re: T-5 Transmission Mount
Wrenchbender Ret. #690330 Sat Oct 30 2010 12:01 AM
Joined: Dec 2005
Posts: 2,601
Shop Shark
I too have modified my original crossmembers to mate to the t-5 mount.I wouldn't let it hang there without,after all the s-10 has the mount and stabilizer rods for a reason.
Just my opinion.


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Re: T-5 Transmission Mount
bowtietim #690427 Sat Oct 30 2010 05:01 AM
Joined: Dec 2004
Posts: 1,899
Shop Shark
Actually the s10 has the mount there because it is the rear engine mount. 2 mounts up front on the side, 1 in the rear on the transmission makes the engine mounting "triangle". Our stovebolts make the triangle with the front mount, and the 2 rear mounts on the bellhousing. That rear crossmember is redundant on a stovebolt with a t5. Still it couldn't hurt to have one for the frame stiffening properties.


Re: T-5 Transmission Mount
6cylindersovertexas #691664 Wed Nov 03 2010 08:40 PM
Joined: Mar 2000
Posts: 782
Shop Shark
Joe, I have done about the same thing you are attempting. I used the orig. cross member and notched it as you suggested. I used the original rear taans mount from my 3spd and welded that into the notch. Then I used a standard T5 rear rubber mount and bolted that to the orig trans mount.

Check out the tech tips, there are some good pictures of what I'm talking about. If you can't find them let me know, I think I still have them on my computer.

Good Luck

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