im trying to figure out what type of diffs (size as well as open or trak-lock) i have. my truck is a 2000 XLT "4x4 OFF ROAD" if that means any thing (let me know if it does, im curious). so is there any way to tell from this info? of any other easy way to find out?

 

Read the axle code from the sticker in your driver's side door jamb and search the codes.

 

the codes for the axle on the sticker are;

19 – 3.55 Non-LS
18 – 3.08 Non-LS
H9 – 3.55 LS
B6 – 3.73 LS

 

thank you very much! i do have LS! so does it just really suck? because i had my truck high centered with the FR and RL tires in the air and all that happened was that the tires in the air spun and i didnt get any traction. i had to jack myself out of it and it was lame. i had an old Suburban (1990) with LS that i could do the same thing to (i beat the sh*t out of that thing and it took it amazingly well) and it would pull right out no problem. im rather disappointed with the way the ford handled it.

 

if it was that bad your clutch packs in your LS may not be working

 

are those codes on all models including 04-05 models.

Thanks
Later
M V

 

ummm.... what are clutch packs and what do they do? and how much do the parts cost to replace them? (ish)

 

are those codes on all models including 04-05 Models

Thanks

 

It is normal for this to happen with a Limited Slip Differential. Next time it happens, lightly apply the parking brake. This will apply braking force to the wheel in the air and help transfer power to the wheel on the ground. The only way to fix this is to replace the LSD with a Locking differential.

JMC

 

I have a 2004, the sticker on the door has axle code 26, I think it is a 3.73 non slip, any help.

 

Here's the listing for '04

19 — 3.55 non-limited slip
25 — 4.10 non-limited slip
26 — 3.73 non-limited slip
27 — 3.31 non-limited slip
B5 — 4.10 limited slip
B6 — 3.73 limited slip
H9 — 3.55 limited slip

 

I also have limited slip ( h9) is does suck in the mud but as JMC said if your tweaked just a little brake pressure sometimes lightly pump the break to get both tires in contact with the ground again. all it does is slow the in air wheel down and send a little pressure to the on ground wheel, hopefully enough to make it move a bit.

Michael

 

I don't think that my LS sucks, of course I think it's also got 102K on the original fluid..... It hasn't let me down yet.

 

You're clutch packs have probably welded themselves together.

 

It turns fine on the street, no chirping except for one turn if I don't stop at the sign and get up on it.