loudnlow

In the very near future I am going to be purchasing some FRPP 4:10s and I need to know what all I need along with the ring and pinion.

Do I need the install kit with all the bearings and shims? Or do I just need the basic kit?

Will I be less likely to get gear whine if I get the master bearing kit?

Also how much gear oil do I need and what weight?

And I know I need friction modifier, but how much and and can anyone recommend a brand?

Or is there anything I am missing and need?

Thanks guys.

08SGT

i would get the master install kit *its what i got and was told to get *

as to gear oil weight its 75w 140 i cant remember if its three or four bottles though

for friction modifier i just went to the local deal and picked up motorcraft brand

also check out lubelocker.com for a rear diff gasket

Johnboy7701

You have an '05 I would get the master install kit which comes with the bearings.... and also I think 3 bottles of gear oil... royal purple is what I used

stangdude81

Granted I haven't done my Mustang yet, I did change the LS fluid in my truck. For the friction modifier I shopped around and the Motorcraft stuff from the dealer was the same price as the stuff at O'Reilly's. I went with Motorcraft, expecially since there was a TSB out on a vibration in the rear end of the F150's due to bad clutch packs. When I do the Mustang, I'm planning on doing the master kit since I'm really not a big fan of reusing bearings. I see it as a little extra insurance that the job will go smooth and you won't have to redo it when you get a vibration. Definitely do the FRPP gears though, I've heard lots of stories about the Motive's whining in S197's.

usc49erfan

this is what i bought, i just bought the 3.73 version this is for the 4.10 version.why buy everything seperatly and worry about missing something
http://www.latemodelrestoration.com/...r-End-Gear-Kit