Boa Man5

if you check on your driver door and find your axle code we can help you better.

Phil Larsen

It appears I have an L9 axle. Is that the information that is needed?

Thanks,

Phil

Boa Man5

An L9 axle code I believe is the 3.55 E Locker, but you're manual or purchase documentation should tell you for sure.

1. If there were a gasket available it would be here:
http://www.fordparts.com/Commerce/Ca...FW1ET5CFA86067

I used RTV Silicone Gasket Maker. Bought at NAPA for like $7 or something. Easy to use, just takes a little time to set.

2. My owner's manual says Motorcraft SAE 75W-140 Rear SyntheticAxle Lubricant. I imagine it is the same but I don't know for sure. Your manual should say for sure. that's only for the rear diff though.

3. Limited Slip Differentials need friction modifier and open diffs do not. E Locking diffs are mechanically open diffs, but may have specific needs. You could call you're dealer or wait for someone with more experience to respond.

4. Here are some listings for diff covers I found:
http://www.americanmuscle.com/f150-d...vers-0914.html
http://www.stage3motorsports.com/200...erentials.html

Phil Larsen

Boa_Man5...you are the man. I really appreciate it.

Look what I have learned though. It appears I never have to change the differential fluid.

https://www.f150forum.com/f12/2012-f...2/#post5363730

techrep

iTrader: (1)

not never... after being submerged in water.. and if you tow I would want to change it every so often.