The Mud Pit > Wrenching
Bill's 1 Ton TJ Build
skibum:
Everything you are adding to your Jeep will hold up just fine. The only thing that might give you trouble is the stock 231 T case. I assume thats what you got in there right now. Its still a tough T case but turning thoes 1 Ton axels,heavy H1 wheels with the 37" mil spec tires will put some heavy stress on the stock 231. It might hold up ok for a wile but that Supercharged motor will push that 231 to its limmits. Tho I will say this that you can find 231's cheep. There everywhere. Keep a spare in the back. ;D
BlacXJeep:
^ i hear someone whispering, (ATLAS, ATLAS...)
kirksjeep:
--- Quote from: skibum on January 14, 2011, 04:36:11 AM ---The only thing that might give you trouble is the stock 231 T case. I assume thats what you got in there right now. Its still a tough T case but turning thoes 1 Ton axels,heavy H1 wheels with the 37" mil spec tires will put some heavy stress on the stock 231. It might hold up ok for a wile but that Supercharged motor will push that 231 to its limmits. Tho I will say this that you can find 231's cheep. There everywhere. Keep a spare in the back. ;D
--- End quote ---
x2
1 ton running gear and high horepower will need a 1 ton transfer case. The aluminum case and chain will not hold up to tho that kind of weight and HP. There is a guy around the corner with a YJ that snapped the NP231 with a mildly built Chevy 350 and 35's at a stop light in 2wd. Also, do you have the AX-15 or the NV3500? I would expect that it too would be at the limit of it's strength. I would look into the NV4500 tranny with what you are planning.
Bill3753:
I have the NV3550 and NP231. I will run them as long as I can. At some point I might swap a Dana 300 or NP205. If I go to the NP205 I would probably swap in a ZF-5 speed at the same time. The ZF-5 is a 5 speed overdrive transmission out of F-250/350's and is very stout. Both of those would be in the future though.
As for the now though, its offical. This is going to happen.
Dana HP60 out of a 1979 F-350.
Bill3753:
Found a guy on craigslist with the Military 37's at a great price. $60 each with 90% tread or better. I will going to get 5 here soon. If anyone wants some too, this is cheaper then anywhere online. We could split fuel cost there and back (about $50 in the diesel F250). $300 for a set of 5 37's is a great deal.
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