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Discussion Starter · #1 ·
Has anyone ever put dual t-cases under a Jeep. I was wandering if it was possible to put a dual t-case setup under a CJ7 and still have driveshafts left. I know that Broncos and Toys can use then, but is it possible under a jeep. Is it also possible to make dual t-cases out of the dana 20 or a dana 300 t-case.

Tim Springer
1980 CJ7
 
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Discussion Starter · #2 ·
dual 20 transfer cases 2.06 x2.06 = 4.24. model 300 with terralow 4.00, for the cost to buy a 300 and the gears you would be money ahead, the drive shaft angles would be better too. I just saw you have a 1980 cj7 don't you all ready have a 300? even if you have quadratrack this would be a bolt in swap

 
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Discussion Starter · #3 ·
I don't believe that It can be done on a cj7 because the rear driveshaft just won't have any legenth left. Thats why you see dual T/C on trucks plenty of wheelbase and rear driveshaft

-MarkyMark
80 CJ-7 Laredo 304v8 TF999 3.73's BFG M/T's
 
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Discussion Starter · #5 ·
How Deep? I don't know, but my Jeep doesn't have the stock drive train. It has a muncie 465 and I think a dana 20 t-case. Yes this is a 1980 CJ7. If it is a dana 300 then it has a dana 20 stick. My gears are 3.54:1 and I have 31 inch tires. It feels a little under powered on road and off road in first gear. I can go anywhere I want, but I am hard on clutches. I was think dual t-cases as a trick setup to get a lower gear, but the previous posts concern me about drive shaft angle. I was thinking however that landcruisers and broncos can use dual t-cases.

Tim Springer
1980 CJ7
 
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Discussion Starter · #6 ·
If you do have the 20 transfercase then I would go with the Tera gears. They make a 3.15 low range kit
to fit the 20. I agree with the other posts regarding driveshaft angles. Nickmil.

 
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Discussion Starter · #7 ·
I dont think it would work well unless a lot more was modified. Think about it... Folks are plopping down wads of cash for a Slip Yolk Eliminator kit just to gain 3-4 inches of driveshaft to make driving their rigs bearable. What you're talking about "could" be done, but you'd have to do a lot of other work to get it to be livable. Like maybe go to a slim electric fan in front of the radiator and move the motor mounts forward a few inches, move the transmission in a similar fashion, which may mean fabricating new shifter linkage, maybe move the rear axle back a little, etc... I'd say go with a Terra kit and be done with it. Just my opinion, anyway... Hope it helps. Happy Jeepin'!

-Spyder
 
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