Re: Lockers/limited slip? And which one?
I'll throw in my $0.02 worth. I did my early Jeepin' in Iowa, where it sounds like similar off roadin'. Mud, mud and snow and then just more mud. In Iowa I had a Spicer PowerLock (which is a non-clutch pack type limited slip) in the rear of my '75, and it did a good job off road, decent on the snow, and real good regular road manners. After a while I put another PowerLock in the front, and it did better off road (but when you get stuck in gumbo you are way stuck), still OK on the road (little more steering effort), but scary on the snow (it didn't want to turn left or right so much). All told I would leave the front open if I was to do it again.
I have a locker in the rear of my Jeep out here in AZ, and am not real crazy about the on road manners. It is great off road, but a little weird on the street. It will have Detroits front and back, one day. It isn't a daily driver though.
Just my opinion, and I know it isn't the conventional wisdom to recommend anything but lockers, but the PowerLock is really easy to live with.
'74 CJ-5, 258, NP435, D44 w/LockRite
(OK, well the np435 is in the garage next to the Jeep)