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pszikszai
03-03-2007, 08:28 PM
I have just completed working on a twin traction rear end with the help of Mike and Blackhawk,and n8n and others.
I have one more project that I need advice on.
I have one more TT whose perch have been moved to the top to be used on a different vehicle.
I also have a model 44 axle from a 53 v8 coupe.
Rather than trying to remount the perch and taking a chance on ending up with misalignment or a undesirable angle,
I would like to transfer the TT differential into the 53 type 44 axle.

Questions:
Assuming the pinion has the same number of teeth(13), do I need to transfer the pinion from the TT differential along with the TT case Assembly?
I know that I have to check the gear tooth alignment.
The differential caps to use are the ones from the 53?
I assume they are line boared.
I have the 53 rear axle prepared for the transfer.
I will begin taking the modified TT rear end apart in a few days.

Please advise/comment on the feasibility of this plan.
If it is feasible I will soon proceed and may have other cry for help later.
Thanks
Paul

StudeRich
03-03-2007, 08:54 PM
Yes; leave the bearing caps where they were factory fitted and mark which which end is up, and which is left side. Never separate them from the case they are fitted to. The Pinion must go with the matched Ring gear, but take the shims as it will need to be "setup" in the new case and will need those and more or less shims to do the setup. There are a lot of years between those two cases, but hopefully they will still work. The '53 has the bearing greasing "plugs on the back of the flange, also has the drainplug that Spicer deleted years ago. So it's a good one IF it fits, it will require the housing spreader tool however. I hope you REALLY NEED a TT!! [:0][:0][^]

Also, are you sure you can live with the Ratio of the TT unit? A '53 depending on Trans. would possibly have about a 4.56 (racing gears nowdays) and most newer TT's are about 3.31 cruising gears. You need bigger than a 232 to pull those gears, and get to 60 in less than an hour! [:0]

Rich.

StudeRich
Studebakers Northwest
Ferndale, WA

pszikszai
03-03-2007, 09:41 PM
If I understand you correctly, I should try get a 43 teeth ring gear a for a 232 to make it a 3.31? It now has 3.54 ratio.
Thanks.
Paul

DEEPNHOCK
03-03-2007, 09:50 PM
Why not just buy two spring perches from Speedway Motors
http://www.speedwaymotors.com
P/N# 545-85090
http://www.speedwaymotors.com/eccStoreFront/product_images/500/545-85090_R.jpg
You probably would not even need to cut the old pads off if the spacing is the same.
I think that welding new pads on would be a whole lot easier than setting up a whole new differential with used pars.
Jeff[8D]



quote:Originally posted by pszikszai

I have just completed working on a twin traction rear end with the help of Mike and Blackhawk,and n8n and others.
I have one more project that I need advice on.
I have one more TT whose perch have been moved to the top to be used on a different vehicle.
I also have a model 44 axle from a 53 v8 coupe.
Rather than trying to remount the perch and taking a chance on ending up with misalignment or a undesirable angle,
I would like to transfer the TT differential into the 53 type 44 axle.

Questions:
Assuming the pinion has the same number of teeth(13), do I need to transfer the pinion from the TT differential along with the TT case Assembly?
I know that I have to check the gear tooth alignment.
The differential caps to use are the ones from the 53?
I assume they are line boared.
I have the 53 rear axle prepared for the transfer.
I will begin taking the modified TT rear end apart in a few days.

Please advise/comment on the feasibility of this plan.
If it is feasible I will soon proceed and may have other cry for help later.
Thanks
Paul


http://i77.photobucket.com/albums/j54/deepnhock/Jeff%20Rice%20Studebaker%20Pictures/1937StudebakerCoupeExpressJeffRicee.jpg

DEEPNHOCK at Gmail.com
Brooklet, Georgia
'37 Coupe Express (never ending project)
'37 Coupe Express Trailer (project)
'61 Hawk (project)
http://community.webshots.com/user/deepnhock

StudeRich
03-04-2007, 12:31 AM
NO, what I think we need to do is start over! I/we do not know what Ring and Pinion is in this later model TT case assem. that you are trying to put in the axle housing from the '53 or are you trying to save the ring & pinion from the '53 and mate it to the TT carrier?

Also what power train Eng./Trans is going to drive it, in what car? Power and weight are important here, unless you are going to run a big Block 454 Chevy or something.


quote:Originally posted by pszikszai

If I understand you correctly, I should try get a 43 teeth ring gear a for a 232 to make it a 3.31? It now has 3.54 ratio.
Thanks.Paul

StudeRich
Studebakers Northwest
Ferndale, WA

pszikszai
03-04-2007, 06:25 AM
The TT differential case assembly I am transferring to the 1953 rear end is 3.31.
The engine is 232 brand new, with larger heads and exhaust.
I have more than one of this set up.

Stude4x4
03-04-2007, 10:57 AM
That ratio will work fine. You are going to need a dial indicator to check your backlash which for a D44 should be 6-10 thousandths. You need an inch pound torque wrench to check your bearing preload on the pinion. Then you need to put white grease on the gears to check the pattern and make sure the pinion isn't too deep. Maybe you already know this but I want to make sure.

Jake

-Home of John Studebaker-
http://community.webshots.com/user/Stude4x4
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pszikszai
03-04-2007, 12:28 PM
OK
Thank you all.
Paul

Flat Ernie
03-04-2007, 01:44 PM
I'm confused as to what you're exactly trying to do, but let me state a few things that may have been lost in all of the good discussions...

Both ring gear & pinion gear must be a matched set. You can't simply change to a different ring gear to get a new ratio. You can't even run a mis-matched ring & pinion gearset of the same ratio.

If you want to move gears from one housing to the other, you need to move both ring & pinion over. If you use all the shims in place with the gears, you should be pretty close on the setup (pinion torque, pinion depth, backlash, etc.) - putting it all on a different carrier may upset the backlash or even bearing preload (less likely).

If you're happy with the ratio currently in your car & just want to put the TT carrier in, swap the ring gear from your car onto the TT carrier & re-use all the shims. You will need to re-check backlash & pattern.

If you want to change the ratio in your car AND change to the TT carrier, then there are two scenarios:
1 - You want to use the gear ratio that is currently with the TT carrier
2 - You want to use a different gear ratio from both your car & the TT rear

If the former, pull all the gears from the TT rear, retain all the shims making a note of where they go, & swap the entire setup into your rear housing. You should be close on the setup, but it just makes sent to check it all.

If the latter, you should get a complete shim set & set up the gears as new. This process may be better left to professionals if you're not familiar with it, but it isn't out of the reach of a good home mechanic with a bit of patience and solid understanding of the goal.

Have I confused things more? ;)

Daddy always said, if yer gonna be dumb, you gotta be tough & I'm one tough sumbitch!

pszikszai
03-04-2007, 03:17 PM
OK
This is very clear.
Thanks
Paul