2005 - 2014 MustangsDiscussions on the latest S197 model Mustangs from Ford.
Welcome to Mustang Forums!
Welcome to Mustang Forums.
You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!
I had a shop do a gear install a couple months ago and everything was pretty good until I started getting really bad vibrations at 80mph and up. I was looking at the bill and noticed they didn't put in the additive so called them and asked why and they said since they used royal purple it doesn't need it cause royal purple has it in the fluid. Is this alright or should they still have put the additive in?
This ad is not displayed to registered or logged-in members. Register your free account today and become a member on Mustang Forums!
You don't need to with royal purple or most of the synthetics available. If you are getting a lot of noise on slow, tight turns, then you can add a bottle of ford friction modifier. It's not going to cause a vibration if it's not in there.
They may have not put the drive shaft back exactly how it was taken out. have them unbolt it and turn it 90 degrees. I also recommend torquing in a star pattern and sneaking up on the 41 ft lbs for the drive shaft to pinion flange bolts. I always torque mine in two stages. A shop probably just hits it with an impact gun.
Boost or Buell, decisions, decisions.
whipple HO SC,FRPP k springs, Pypes mid mufflers, hurst, frpp TB, 4.10's, spohn lca's, adj. UCA, relo brackets, 1 piece DS, spec stg 3+ clutch. email@example.com so far with a 2.01 60 ft time
Pumpkin jacking addict
Last edited by moosestang; 05-28-2013 at 01:50 PM.
...or free hands it (no torque wrench). I'd take the car back and have them make sure everything is tight under there or have them recheck everything. You should have some sort of labor warranty for everything.
What you are describing is a driveshaft vibration. Lack of friction modifier would lead to gear chatter at low speeds and under moderate acceleration from a stop.
08 S197 GT Auto: FRPP Strut Tower Brace, FRPP Bullitt CAI, Bama 91-P Tune, VBX remaned valve body with Superior Transmission Shift Kit.
Pending upgrades: Shaftmasters Aluminum 3.5" DS, FRPP 3.73 gears, Axle back exahust (?)
Originally Posted by LostBoyz
if you are getting 29mpg in your 5.0, you aren't driving it correctly
This forum is owned and operated by Internet Brands, Inc., a Delaware
corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford
Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor