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Unread 03-11-2014, 10:16 PM   #16
96zj4me
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1996 ZJ 
 
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Why not 249? I have a 44a and was goin to do a transfer case swap 231 till then will the locker tear it up ? $$ tight so one peice at a time I was going to put lunchbox locker

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Unread 03-12-2014, 09:19 AM   #17
dirtymissouri
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Originally Posted by 96zj4me View Post
Why not 249? I have a 44a and was goin to do a transfer case swap 231 till then will the locker tear it up ? $$ tight so one peice at a time I was going to put lunchbox locker
Well I can't say for sure but the 249 doesn't have an option for full 2wd on the road. It uses a viscous coupler to transfer tourqe to the front diff. If you have an auto locker in the front with the 249 you may have the auto locker constantly engaging and disengaging with use of the throttle. I got my 231 for 50$ on Craigslist. The chain was nice and tight so I cracked it open and replaced all seals for like 30$. Just pay attention to different input shaft options available I had to swap mine out to work with my ax15
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Unread 03-12-2014, 09:28 AM   #18
96zj4me
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I was goin to lock rear first 249/44a lunchbox so your saying do transfer case swap first?
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Unread 03-20-2014, 10:04 PM   #19
dirtymissouri
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I was goin to lock rear first 249/44a lunchbox so your saying do transfer case swap first?
No not necessarily. However, I prefer the 231 over 249 because the 249 has no 2wd option and the viscous coupler used in the 249 wears out eventually. I guess it just depends on how serious of an offroader you are and what kind of budget you're working with. I like having control over everything my vehicle does. If I could afford manual air lockers I'd buy them. I've heard more good about the 231 than The 249 and the swap wasn't difficult since I had the trans pulled already and sent them both back up as one.
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Unread 03-20-2014, 10:06 PM   #20
dirtymissouri
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Someone correct me if I'm wrong cause I'm not 100% sure about 249 specs
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Unread 03-21-2014, 05:47 AM   #21
ejschultz
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96-98 249s are pretty decent transfer cases. They lock in 4 low and have a power split of 10/90 front/rear until the rear starts to slip. At that point, the VC heats up and transfers power to the front, up to 50/50. 93-95 249s are always at 50/50 in full time and utilize the VC to allow for different axle speeds while turning. They also use the VC in 4 low; effectively, 4 low doesn't lock because of that. With the exception of a wearing VC, the 96-98 249s are probably the best cases for our ZJs. That being said, I swapped mine for a 242. My VC ate up the edges of my front tires and the case didn't get along well with my rear Aussie (probably because of the bad VC).
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Unread 03-21-2014, 08:17 AM   #22
PolkaPower
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Originally Posted by ejschultz View Post
96-98 249s are pretty decent transfer cases. They lock in 4 low and have a power split of 10/90 front/rear until the rear starts to slip. At that point, the VC heats up and transfers power to the front, up to 50/50. 93-95 249s are always at 50/50 in full time and utilize the VC to allow for different axle speeds while turning. They also use the VC in 4 low; effectively, 4 low doesn't lock because of that. With the exception of a wearing VC, the 96-98 249s are probably the best cases for our ZJs. That being said, I swapped mine for a 242. My VC ate up the edges of my front tires and the case didn't get along well with my rear Aussie (probably because of the bad VC).
Probably so because unless I'm mistaken, hunter had lockets front and rear with his 249 and did great in moab.
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Unread 03-21-2014, 08:55 AM   #23
ejschultz
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Did/does he have lunchbox lockers front and rear?
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Unread 03-21-2014, 09:14 AM   #24
PolkaPower
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He had a D30 with a trutrac limited slip and a super 35 rear with a detroit.
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Unread 03-21-2014, 09:56 AM   #25
ejschultz
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Gotcha. I don't think a lunchbox would work up front with a 249. The TruTrac would be a lot smoother. I've been really tempted to buy one of those for my ZJ, especially since I work for Eaton (no, I don't get a discount, I just think it would be cool to represent my company with my vehicle). I don't know how it would work out in the snow though. I led my wife drive my ZJ quite a bit in full time when the weather is bad... I'd be afraid of how it might slide around or under steer with a LSD up front.
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14 JKU Sport S - Stock
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