Discuss Do I need anything else for 4.10 gears? on AllFordMustangs.com, the place for Mustang enthusiasts.
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Hey there, I plan on ordering some gears for my mustang. It currently runs 3.55 gears and I plan to switch them out to the 4.10's, will I need anything else for the install? On Am they are offering instal and bearing kit, and two other options. Are these necessary? Ford Racing 4.10 Gears (05-09 GT) M-4209-G410A - Free Shipping!
You don't have to purchase any of the extras with these gears. However, if you've never replaced the bearings in your rear, now's a good time since you'll have most of it apart. I highly suggest looking into the bearing kit!
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If you're over 50k, I'd change the bearings. I did gears at 3x,xxx miles so I didn't worry about it. However, you will need new posi dif oil when you do the job along with some RTV sealant for the dif cover.
2007 4.0 Redfire Manual
Fastest Quarter: 14.96 @ 92mph 93 Octane Race Tune by BAMA, JLT CAI, Heavily Ported TB, Pacesetter Longtubes, Deleted Cats, Dual Cherry Bombs Dumped at Axle, Prothane Bullet Mounts, T-Lok, 3.73s, Hurst Short Throw, Springtech Lowering Springs, GT Front and Rear Swaybars |GT Front Bumper, Fiberglass Black Hood, Shaved Antenna, Smoked Everything, 6Ks, Sequentials, etc. | 2011 Takeoff Black Leather w/ White Stitching