I was wonder if a 249 could bolt right into my 97 jeep ZJ? I have the 242 right now but I'd like to get a 249, and it would be great if the 249 would bolt right on in place of the 242. I was also planning on keeping the 242 so if the vc goes bad I can swap them tell I get it fixed so that it doesn't hurt anything and then swap back.
Full time in the 249 is far superior than full time in the 242.
Please explain why...
"Si Vis Pacem Para Bellum"
"Great danger lies in the notion that we can reason with evil"
...We use words like honor, code, loyalty. We use these words as the backbone of a life spent defending something. ...I have neither the time nor the inclination to explain myself to a man who rises and sleeps under the blanket of the very freedom that I provide, then questions the manner in which I provide it. I would rather you just said thank you, and went on your way, Otherwise, I suggest you pick up a weapon, and stand a post...
I bought the HI-WAY BLASTER HORN that's 139dB and every time I honk the horn an Angel dies.
16 - He causes all, both small and great, rich and poor, free and slave, to receive a mark on their right hand or on their foreheads,
17 - and that no one may buy or sell except one who has the mark or the name of the beast, or the number of his name.
18 - Here is wisdom. Let him who has understanding calculate the number of the beast, for it is the number of a man: (Real ID and RFID chips)
Think about it...
Just get any 249 out of any 96-98 ZJ and it'll bolt on. Not many people, at least as far as Ive seen swap from 242 to 249, so Id bet you could find one pretty cheap. Just dig around a little on Craigslist, local junk yards, etc.
You would need a 96-98 249 for an easy fit . Can be found in most 93-95 , but , 4.0 only . Output shaft must be .84" long . IIRC , there is a slight length difference in the 242's driveshaft vs the 249 . I'd have to guess 1" , it's been a while .
Buy a new VC if you are going to go through the swap . I love the 249 . Still run it in my 7+ lifted Orvis .
Because the 242 has an open differential which will leave you with one tire spinning in full time and the 249 has high bias limited slip (the viscous coupling) which will keep you moving.
Try going up a snowy/ slippery hill with 242 in full time, then 249. On a daily driver in snowy areas, 249 is by far a better case compared to 242 or 231. Only downside is it's lacking 4hi part time or rwd if you need it.
Yea that's part of the reason I'd like one! I got stuck in the river a few months ago, had it in 4wd and one tire was free spinning and because of that it wouldn't move. I'd also like to play around with some other things too like electric motors, and hydraulic regen braking ideas I have and it's best to have awd so that all four wheels are stopped together or you run the risk of sliding on the two wheels that are being stopped. Also would limited slip in front and rear be good or would lockers be better??
Having two tires and two not spinning has nothing to do with AWD, full time 4wd or part time 4wd. You need lockers + part time 4wd for all four corners to be permanently linked together.
The VC awd on the 249 can only provide 50/50 torque bias between front and rear, but it is never locked. On the 242 FT front and rear are not permanently connected either, it's full open center diff -> you may end up with only one wheel spinning in that mode without lockers.
With the 249 rear locker or limited slip is ok, in the front I'd only go with a selectable if you need all four tires pulling. I don't really see a need for that on a DD though.