HYDRAMATIC horrors

Driveline (including transmissions, differentials, tailshafts) discussion.

Re: HYDRAMATIC horrors

by EH Axiomatic » Fri Sep 26, 2014 3:41 pm

Surely there is no need for floor bashing and over engineering is there????
Just cut out and lower the area at the mounting area re weld - fill angled sides and weld - Simple - No issues I am aware of.
See photos - but as they say DYOR (do your own research).
Last photo shows a similar modification to a Auto cross member fitted with a Trimatic - fitted with no tailshaft issues. The same method was used to Fit a 4 speed ALL Aussie manual box in an Auto body.
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Re: HYDRAMATIC horrors

by utility8 » Fri Sep 26, 2014 4:28 pm

The replacement that hcap metions should solve the puzzle nicely.
If you can get your hands on a Trimatic bare casing with no internals for mocking up, it will make the job much easier than using the complete auto. The reason is you'll need to slip it in & out a few times to ensure you get good clearances. The crossmember under the floor will only need to be removed slightly wider than the auto is at that point. Perhaps 30-40mm wider? Once the under floor crossmember is sufficiently removed, fabrication & welding of the new plating will be reasonably straight forward. It will become obvious as you jack the trans into place. I will get mine in the air & have a look over the weekend if I get a chance.
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Re: HYDRAMATIC horrors

by EH Axiomatic » Fri Sep 26, 2014 5:14 pm

Can I ask how or why the attached photos were removed?? I did check to see that were loaded up.
I'm Puzzled????
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Re: HYDRAMATIC horrors

by Mtb2rusty » Fri Sep 26, 2014 7:39 pm

Thanks very much to all the guys that have taken the time to share their experience with this mod.
I'm going in!!! ;)
 
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Re: HYDRAMATIC horrors

by EH Axiomatic » Sat Sep 27, 2014 12:58 am

ok Blur1 Photos upload take 2


Post edit... I checked they went up ok , Checked in again later and photos gone??????????? :roll: :?: :?: :?: :oops:

Edit 2 ... Hey hcap see if you can post a Photo of the flat bar you used...
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Re: HYDRAMATIC horrors

by hcap » Sat Sep 27, 2014 10:43 am

Not near a pc or a Mac till Monday arvo
Will look then
 
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Re: HYDRAMATIC horrors

by Mtb2rusty » Fri Oct 10, 2014 8:35 pm

If any one has those photos of their trimatic change over that would be good
 
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Re: HYDRAMATIC horrors

by utility8 » Sat Oct 11, 2014 10:56 am

The crossmember that runs under floor will need the width of the trans at the same spot removed, plus some extra width for clearance. It's one of those things that requires the box in & out a few times to get it right. If you've got a trans bloke nearby, perhaps see if he has an empty Trimatic to use as a dummy for fit up. MUCH easier than a complete box in & out. The floor will need a bit of massaging as well to get clearance around the upper bolts of the extention housing. Once enough clearance is achieved, weld in some metal to blank off the exposed ends of the under floor crossmember. If possible, this can be one piece that runs up across the tunnel to cover the exposed ends in one hit. 3mm will be quite heavy to work with, perhaps a bit thinner might be simpler. Also, use a new rear trans mount to ensure you create enough clearance as it will sit a bit higher than a flogged out one.
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Re: HYDRAMATIC horrors

by EH Axiomatic » Sun Oct 12, 2014 1:38 am

Are we talking about the same floor pan here?
Mtb2rusty I think you have The Auto floor pan right ?
And Hcap put his Trimatic in a manual floor pan EJ ute ??
And they require different approaches....
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Re: HYDRAMATIC horrors

by utility8 » Sun Oct 12, 2014 9:15 am

Yes......My previous reply was for a conversion into an automatic floor.
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