Originally Posted by stockranger
I have recently read that the LS on my xlt 4x4 uses a friction clutch and that means unlike the torsen this one will have to be serviced a few times during the life of the truck . I am wondering if anyone has a rough estimant of how often i should check to see if it needs serviced and how i go about testing it ? i know i can do a burn out and look to see if it leaves two skid marks but is there another way ? how exactly do i decide if i have the 8.8 rear end ? If i do have the 8.8 i was looking at getting the detroit locker limited slip. what might i expect to pay for installation of another LS? i'd also like to upgrade to LS or a selectable locker in front . what are some option for the front and what might that cost me ? I am on a budget and want to keep things as close to stock as possible.
All 2005 4x4's have the 8.8 axle. Your Traction Lok will give you many miles of trouble free service unless you abuse it and/or use it very heavily off road. It is a good combination of traction and smooth road behavior. Read the Scheduled Maintenance Guide that came in your owner's manual packet for service info.
What Ford says about replacing axle lube in my 2003 SMG:
-General street use: "lubricated for life"
-Police or taxi use (LOL): 100,000 miles
-Normal trailer or rooftop carrier conditions: 60,000 miles
-Severe trailer tow conditions at high ambient temps: 3,000 miles.
-Any time the axle has been submerged.
Personally, I don't buy the "lubricated for life" interval and would change the diff fluid at least every 50,000 on the street and more often if the truck sees a lot of off road or trailer tow use.