jetstang

The Dealership is going to install FFRP 4.10 gears in my 2005 Stang. Is there anything I should request of them (special gear oil)
Is there any question I should ask to make sure they are capible of installing them correctly.
Please reply my 4.10 friends!

Michael

Johnnie D

You should be fine, just remember to recalibrate the speedo with the xcal for the 4.10's.

hotairgypsy

see if they are willing to install royal purple syntheic gear oil

JfabzGt07

you dont need to change the gear oil its a waste of money. The rear end already comes with synthetic. Like Johnnie said, just recalibrate the speedo.

owero01

There is synthetic and then there is synthetic. Go with the Royal Purple.

howarmat

yeah RP for me too

Johnnie D

I put redline in mine when i swapped it out...RP in the crankcase though