TH400 to Dana20 adapter parts

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joeburriss
Posts: 3
Joined: Wed Jan 27, 2021 10:58 am

TH400 to Dana20 adapter parts

Post by joeburriss »

Hey folks! I've recently acquired a '78 Cherokee equipped with a QT case. Since I'm having the trans rebuilt, I've decided to had a 2wd shaft installed because I have a dana 20 with a 32 spline spud shaft & th400 adapter on my shop floor. I cannot find a parts list for the consumables in the adapter.

Would any of you have the parts list and/or part numbers for "rebuilding" the adapter?

I've found remanufactured stock replacements, ready to go from Novak, etc, but none of the techs can tell me what bearing, seal, snap ring (or whatever else is in there) is in their kit.

I'd thought of just dropping the coin on the adapter, but the one I have is on good shape, and I should be able to save a couple hundred bucks by just rebuilding what I got and still end up with quality and no corners cut.

Whatever help y'all can give me is MUCH appreciated!
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tgreese
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Location: Medford MA USA

Re: TH400 to Dana20 adapter parts

Post by tgreese »

Been a while since your post -

There is a '65-73 J-series parts book on the Tom Collins site. https://oljeep.com/ If you look at the Dana 20 tailshaft/adapter parts for a '73, it should show what you need. Cross the Jeep PNs to aftermarket; RockAuto is pretty good about crossing Jeep PNs, otherwise Google the PN plus "Jeep."

Usual complaint about the factory D20 adapter is it breaks. I presume this means that the pedestal for the mount breaks. The aftermarket ones, like Novak's for example, are stronger.
Tim Reese
Maine beekeeper's truck: '77 J10 LWB, 258/T15/D20/3.54 bone stock, low options (delete radio), PS/PDB, hubcaps.
Browless and proud: '82 J20 360/T18/NP208/3.73, Destination A/Ts, 7600 GVWR
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Yeller
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Joined: Thu Apr 01, 2021 7:54 am
Location: Rogers County Oklahoma

Re: TH400 to Dana20 adapter parts

Post by Yeller »

No help on the parts, but for anyone else reading I do have a complete d20/t400/350 Buick in a running driving truck in the classifieds. Shameless plug, I should probably apologize….. sure would help with the LS swap motivation if the truck didn’t run and drive :P
The bus I ride is so short it is a yellow Smart Car full of squirrels, monkeys and clowns.

1970 J2500 Resto Mod
https://www.fsjnetwork.com/forum/viewt ... 12&t=21395

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https://classicbroncos.com/forums/threa ... st-3411909
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HeavyMetalThunder_81
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Joined: Sat Mar 17, 2012 5:01 pm
Location: Haze Gray

Re: TH400 to Dana20 adapter parts

Post by HeavyMetalThunder_81 »

BJ's has the bearing and the seals needed to rebuild your adapter.
-Jonny B.
1979 Cherokee Golden Eagle - UNDER CONSTRUCTION
7" lift, 35x12.5x15
AMC 401 - Pro-FLo 4 FI
NV4500/NWFBB/NP205 - Triple Stick'd
F D44 - 4.10, Eaton E-Locker
R M23 - 4.10, Detroit Locker

1979 Cherokee Chief - Parts
1979 Cherokee Chief - Parts
1979 Wagoneer - Sold
1981 Cherokee Chief - Cubed
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HeavyMetalThunder_81
Posts: 740
Joined: Sat Mar 17, 2012 5:01 pm
Location: Haze Gray

Re: TH400 to Dana20 adapter parts

Post by HeavyMetalThunder_81 »

joeburriss wrote: Wed Feb 03, 2021 1:06 pm Would any of you have the parts list and/or part numbers for "rebuilding" the adapter?
Bearing and snap ring:
https://bjsoffroad.com/turbo-400-to-dan ... r-bearing/

I thought BJ's used to have the seals (there are two) but now I can't find them. I believe they are SKF part#: 13571. Rock Auto should have them.
-Jonny B.
1979 Cherokee Golden Eagle - UNDER CONSTRUCTION
7" lift, 35x12.5x15
AMC 401 - Pro-FLo 4 FI
NV4500/NWFBB/NP205 - Triple Stick'd
F D44 - 4.10, Eaton E-Locker
R M23 - 4.10, Detroit Locker

1979 Cherokee Chief - Parts
1979 Cherokee Chief - Parts
1979 Wagoneer - Sold
1981 Cherokee Chief - Cubed
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