Ok i have an 01 explorer 4wd. How do i determine if i need to add the additive to the diff when do a fluid change. I can look for id tag and get code do you have codes on here to tell me if i have limited slip. its hard to tell because if i go onto dirt and peel out front grabs i have 4wd but front wants to grab if i do and hard for me to tell thanks for any imput. Sorry to sound stupid but I am just not sure.

 

look at drivers door sticker for the number below

L - Limited Slip Differential
C - Conventional Differential
Code Ratio
41 3.27C
42 4.10C
43 3.08C
45 3.55C
46 3.73C
D1 3.27L
D2 4.10L
D4 3.73L
D5 3.55L

 

thanks steve i will look at it in a bit and see if i can determine..

 

it had the d2 code on axle on the door thanks