I don not have much info to pass along as far as the front axle & actuator go as my stuff has mostly always been 2 WD. However I can highly recommend a Detroit Tru-Trac limited slip carrier for the rear!
My axle/driveshaft guy ( Terry @Henderson Driveline in Grafton, Oh a friend for 30+ years) suggested this carrier when I had him rebuild the rear axle in my 97 GMC Sierra 1500. I trust him 100% or I would not use him. This carrier now has well over 250,000 miles on it & is still tight. The 1st 200,000+ miles were pulling my Featherlite open trailer all over the country. This thing still sqauks th etires going into 2nd gear & you can feel how tight it still is when slowly pulling out of my gravel drive! The truck has 648,000 miles on it & has been relegated to winter/WalMart/Bar Parking Lot duty for the last half dozen years or so. Ironically I just pulled the diff cover a couple of days ago to change the lube in it & even after all those miles everything looks great!
God bless
Bill
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