Over drives for dana 18

Ok, I see’em now. Yesterday all I was get’n were red X’s.
Anyway, that is the B/W R-10. Herm the OD Guy has lots of information on’em.
The thing ‘bout’em is they’re a bit of a PITA to set up. See that shaft stick’n out the front of the OD unit in Vanguard’s and my pictures? That’s actually the adapter output shaft for the Dana/Spicer 18 transfer case. The entire OD unit is c-clipped to it.
For install, you’ll have to take the OD unit and your transfer case apart and install that shaft in place of the stock output shaft of your transfer case, then rebuild the OD unit onto that shaft.
Once installed they’re a pretty good unit though, strong also. Mine was stand’n up to a +300 HP and +300 lb/ft of torque Corvette V-8 without complaint.
How much is the guy ask’n anyway? I sold mine on EBay for ‘bout $500 + ship’n.

 

Actually, I don’t think spline or tooth count is an issue here, since it’s connected to the rear output. I’m pretty sure the output shaft remained the same throughout the different Dana/Spicer 18 models.
Though I’m equally sure that if I’m wrong, someone here will know and spell it out for us.

 

At least he wouldn’t be stuck with an 8” rear drive shaft.

 

He is asking $100 for both the D-18 and OD unit.

 

Jump On It!

 

Thanks for all the help guys. I'm sure we will be posting again in the very near future!
Happy Trails!

 

Sorry for the reposting of pics but thought it might help in this thread as well.

101" wheelbase 71 Hurst Jeepster. 225/T14/D20/BW OD

 

Over drives for dana 20

Does anyone know if the BW R-10 will fit the Dana 20 T-Case?

ALso is there a control box to electrically shift it ?

Wonder if that speedo cable is necessary?

This would be a great overdrive in my Jeep Gladiator, have plenty of rear driveline, and I could keep my PTO winch.

 

Re: Over drives for dana 20

There is a BW unit that was offered on back of the D20. I have one from a Jeepster, but they were put on any vehicle with a D20.

Here are a couple links about the BW units:

http://www.classictruckshop.com/clubs/earlyburbs/projects/over/drive.htm

http://www.tocmp.com/manuals/trans/Borg-Warner Overdrive/index.htm

http://www.hydratech.com/pctc/Public_Documents/bwwiring.pdf

http://www.studebaker-info.org/tech/transmission/BW-OD/BorgWarner.html

 

Re: Over drives for dana 20

The Borg Warner overdrive was not adapted to the dana 20.
There was a kit to adapt it to the dana 18.
In the late '70's there was an overdrive designed for the dana 20 transfer case, called the "Sierra Overdrive".
Was not successful due to oiling problems.

 

Re: Over drives for dana 20

No personal experience, but the pictures in this thread http://www.earlycj5.com/forums/showthread.php?t=41524&page=3 seem to argue against that.



Looks like a B-W electric overdrive to me, and a production adapter.

 

Re: Over drives for dana 20

X2 - I have a unit exactly like that one.

 

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Sorry mods... about cross posting.

I dug this thread up... last year, searching for D20 OD.

I figured someone that knew about D20 OD was subscribed, and they may or may not get on forum or look at classified sections much.

No excuse for ignorance of the law, I should of read rules better....sorry, won't happen again.