@sgtsandman &
@spanky50
Depending on the exact model of limited slip, there may/may not be differential bias.
If you get a Jeep Trac-Lok differential carrier/gears and plates, you would have the equivalent to what comes in the standard Ford 7.5 or 8.8 limited slip (non Torsen ones). And you might be able to find one in a yard. However, you would have to confirm if it fits in your TTB pumpkin i.e. I've never tried it. Note: There are a couple different carriers for the Dana 35 depending on gears installed. Also, a limited slip is a little "sketchy" in front as it is acting as a locker until forced to release - not exactly what you want in the front axle.
The Eaton Trutrac and Torsen both use directionally biased gears - i.e. they provide torque balancing when installed in correct location - front or rear, and when being spun forward (they don't work as well in reverse).
But the guys over at the Ranger Rover forums figured out if you disassemble the carrier and put the right side gears in the left side and the left side in the right, it reverses the bias. So, they stopped paying exorbitant prices for the front carrier, and just bought 2 rear ones! (I believe it voids warrantee, so caveat emptor). Torque biasing differentials are much better in front (and/or transfer case) differentials as they account for different radius of travel when cornering on hard surfaces without restricting motion.
The Ford and Jeep Trac-Lok differentials function by allowing "limited slip". While the Trutrac and Torsen bias torque, so they aren't really "limited slip". The result might be similar most of the time, but the differences are important for things like steering on pavement and/or ice (the 2 extremes).