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Old 12-01-2010, 08:01 PM   #1 (permalink)
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Divorced Doubler Transfer Case

I have and 87 chevy long wheelbase with a mild 350, TH 400, dana 60, and a 14 bolt. I want to divorce a doubler transfer case. I was told that the transfer case should be mounted on rubber mounts. Is that true? If so what is the purpose? Any ideas on how to mount this thing?
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Old 12-01-2010, 08:02 PM   #2 (permalink)
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What is your wheelbase measurement? Are you going to make the TH400 a fixed yoke and make a divorced 203/205? Or do a married and divorced case? If you do married and divorced the front driveline probably wont clear the married case.

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Old 12-01-2010, 08:06 PM   #3 (permalink)
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Not sure about that one I would have to check that out.
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Old 12-01-2010, 08:07 PM   #4 (permalink)
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it would be a fixed yoke with a divorced 203 205
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Old 12-01-2010, 08:10 PM   #5 (permalink)
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Quote:
Originally Posted by NscrRdnck3 View Post
it would be a fixed yoke with a divorced 203 205
That will be a long setup. What is you wheelbase?
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Old 12-01-2010, 08:12 PM   #6 (permalink)
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im not sure i would have to measure it
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Old 12-01-2010, 08:21 PM   #7 (permalink)
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I will measure the wheel base in the morning being the truck is at our shop and I will let you know.
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Old 12-01-2010, 08:40 PM   #8 (permalink)
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How about doing a married Trans/T-case to a divorced T-case? Poor boy doubler.
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Old 12-01-2010, 08:48 PM   #9 (permalink)
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136" WB here. using the stock engine mount location with an SM465 and a married flipped 208 with fixed yoke output to a divorced 205. Pretty tight fit with this monster wheelbase even! course I run a 2 piece front shaft, but the rear is getting kinda short. I bet yours will turn out alot tighter than mine. I think the 400-203 combo is a bit longer than my 465-208. And I'm a bit stretched from stock
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Old 12-02-2010, 06:27 AM   #10 (permalink)
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Well, I already got the 203/205 on order. Going to have to make it work now!
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Old 12-02-2010, 04:30 PM   #11 (permalink)
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I have a 130" wheelbase on the truck.
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Old 12-02-2010, 04:55 PM   #12 (permalink)
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It will depend on how tall it is/is going to be also, If the angle isn't to bad the driveshaft can be shorter.

My S10 has a 132" wheelbase and the Duramax/Allison combo that I'm running is Looong, then I've got a 241/241 doubler with the factory slip yoke on the rear one setup behind the Allison and my rear shaft is 50 some odd inches long.

I think if you keep the shaft from your 400 to the 203 as short as possible you will be able to pull it off.
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Old 12-02-2010, 05:01 PM   #13 (permalink)
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Ok so now I know it is possible. Now how should it be mounted. I was told that it should be mounted on rubber mounts. Not on solid mounts. Is that true?
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Old 12-02-2010, 06:40 PM   #14 (permalink)
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Do you already have a divorced 203??? They seem rare as shit and I couldnt dig up a pic. Guess I cant picture how you will make it work ussing a married 203.. Seems like will need a different input for the 203
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Old 12-02-2010, 07:13 PM   #15 (permalink)
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It is a 203/205 doubler. Both transfercases are combined to make one. www.offroaddesign.com/catalog/doubler.htm
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Old 12-02-2010, 07:17 PM   #16 (permalink)
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I got a divorced 203 if you need pics or need it
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Old 12-02-2010, 07:28 PM   #17 (permalink)
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Quote:
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It is a 203/205 doubler. Both transfercases are combined to make one. www.offroaddesign.com/catalog/doubler.htm
Yea Im aware of that...What I was getting at is What 203 RANGE BOX will you be using? Or have you planed out how to turn a married 203 into a divorced unit.

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Old 12-02-2010, 07:35 PM   #18 (permalink)
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Ford offered a divorced NP203 in the 1970s. I would mount the divorced 203/205 on 4 bushings.
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Old 12-02-2010, 07:48 PM   #19 (permalink)
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Thanks Corey. This is my first build and Im just trying to feel my way through it.
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Old 12-02-2010, 08:10 PM   #20 (permalink)
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Ford offered a divorced NP203 in the 1970s. I would mount the divorced 203/205 on 4 bushings.
Yes they did and I have the input gear for sale, check out the for sale section for details if your interested OP.

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Old 12-02-2010, 09:56 PM   #21 (permalink)
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Reference material.
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Old 12-03-2010, 01:23 AM   #22 (permalink)
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I realize the torque loads are greater on your setup. I solid mounted my sami transfer case some years back, it worked great, never had any problems with it.

I have also solid mounted a 205 behind a c-6 never had any problems with that one either.

I would do a solid mount
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Old 12-03-2010, 05:46 AM   #23 (permalink)
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I realize the torque loads are greater on your setup. I solid mounted my sami transfer case some years back, it worked great, never had any problems with it.

I have also solid mounted a 205 behind a c-6 never had any problems with that one either.

I would do a solid mount

Thats what I was thinking too, but the people we bought it from swear that you will break stuff with it solid mounted.
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Old 12-03-2010, 08:44 PM   #24 (permalink)
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U can solid mount a divorced case no problem, it's the married case that seems to destroy everything in front of it when solid mounted. Unless u run a front/midplate with a married one. I have a divorced 203 also I've been considering using for thus also
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Old 12-04-2010, 01:16 AM   #25 (permalink)
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Quote:
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Thats what I was thinking too, but the people we bought it from swear that you will break stuff with it solid mounted.
Well I still know guys that think an old set of camel hump heads will out flow vortec heads and even most aluminum heads so take it for what you will.

I am only going on experience I have on something much less powerful, solid mounting my zuk case solved all the problems I was having with it.
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