97 f150 5.4 4x4 questions
hi guys. got a question about my 4x4 system. my 97 f150, with a 5.4L, is my work truck. has a ford 9 inch in the back, and an ifs setup in the front, not sure what style diff it is. i do a ton of towing for work and recreational towing. recently I have noticed that my 4x4 high and low arent living up too my expectations.
my main problem is when i put it in 4x4 to go up my steep snowcovered driveway, i find halfway up if i slow down a bit when backing my trailer up, that when i give it a little more gas, one or two tires will start to spin. and i end up going nowhere.
so then ill try using 4x4 low, now i pretty positive 4x4 low works cause i can hear it engage. now once im engaged in low i put my trans back into gear and attempt to continue backing up. now when i start easing into the gas to get going. i can hear my engine rev up and not one tire moves until im over 3000rpm and at that point the tires immediately break free and spin, but not all 4 just two. usually the rear tires.
now to add some info. my tires are brand new goodyear wrangler a/t. and i do not just put the peddle to the floor and go. i do ease into it slowly.
so hers my question. what options do i have to lock my tires together so they have to move together?
posi lock diffs?
front wheel lockers?
changing gear ratios?
thanks in advance for any help.