Rear end issues
#1
Rear end issues
Hi everyone. I am new to this but am hopiong to get some help with an issue. I have a 2005 f150 XLT 5.4. So I guess iil just get to it. Whenever I go from a complete stop and begin to accelerate around a turn my rear end seems to vibrate. Had a mechanic take a quick look over it and he didn't see anything obvious and is worried it is somewhere in the defferential. Just looking for some direction. Im not afraid to take anything apart but really dont even know where to start. Let me know if anyone has any ideas. Thanks!
#4
I don't know if limited slip, find out tomorrow just bought truck not long ago and don't believe he did much servicing. I can pull rear cover and drain, what amount and kind oil to use on high miles, it just started this a bit ago. What is friction modifiers......thx
#6
I would try a diffy service.
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#8
Senior Member
You have. 3.73 lSD you nedd to pull cover snd drain and refill with
Rear diff 3 quarts of 75w-140 synthetic with 8 oz of friction modifer xl-3
The xl-3 limited slip addtive shoulf clear up thr chaddering u hear
. Be sure to do a few figure 8s too
Rear diff 3 quarts of 75w-140 synthetic with 8 oz of friction modifer xl-3
The xl-3 limited slip addtive shoulf clear up thr chaddering u hear
. Be sure to do a few figure 8s too
#10
So do I have limited slip rear end?