If your statement was actually innocent I apologize for the response, but the way it came across you'd just as well have said, "Hey, OP- I think you're an idiot."
You could have said something as simple as, "You should always check your pinion angle after changing the ride height," and no offense would have been taken.

 

If it's a transmission problem and they try to claim slight suspension work caused it they're going to have a lawsuit and other problems.

...but I have several insiders at the dealership, so I'd be surprised if anything would actually go wrong.

 

Yeah I agree poor wording on my part.

I really really think you should return it to stock. If it does end up being a transmission problem man that will be costly. If you have people you know at the dealer you maybe alright.

 

I believe I have enough pull at the dealer to be safe. If not, my first Mustang will be my last Ford after 17 years of devotion. None of my modifications have enough effect on any of the referenced parts to cause trouble in under 3,000 miles. I'll try to turn it in next week and will report back how it goes.

 

So that means you checked it?

 

A lot has to do with the particular dealer. Some will look for any excuse to deny warranty while others will bend over backwards to help their customers. I think that you will be alright since you seem to have a good relationship with your dealer.

 

Sorry double post

 

It wont matter. The way they see it is either it's stock or not.. Hey but it's your car and your money. Good luck.

 

dumb question, but how could pinion angle cause gear whine?

I could see pinion angle causing u-joint/driveshaft acc/dec issues/and associated vibration, but dont these cars have CV's at the carrier and rear? if so acceleration issues shouldnt occur anyway, only thing I'd think pinion angle might affect would be strength...

while asking dumb questions, how is the front ujoint supposed to work? always thought if they ran straight the bearings would brinell, as grease dont get distributed from needles rolling, and if theres one at a angle you need one in phase at the other end to eliminate the acceleration/decelleration every 90 degrees of the shaft...

another maybe not so dumb question- could lowering/aftermarket control arms possibly shorten the end to end length enough to bottom the slip portion out and stove the driveshaft into the tranny? I wouldnt think so, but could see that situation causing both pinion and tranny issues...

 

my transmission grinds at low rpm/part throttle shifts also.

 

3,73's with Brembo's and no grinding isssue here.

 

It just got even worse. Picked up my son from daycare, let him in the backseat, closed the door, and found...

 

.....that you spit on the mirror so much that it collapsed under the weight???????

 

My 2010 had 4th gear bearing growl. Ford replaced tranny with only 700 miles on car. My factory 3.55 rear has a whine right at 70MPH+. There is a TSB to install axle weights for this. Gonna have them do it at next oil change.

 

So what does one listen for when investigating a possible whine? Is it constant, more noticeable at low RPM or high, etc?

My 3.73s are being installed tomorrow. I really hope I don't inherit a new problem with my new gears.

 

Mine start whining at 60mph and get louder with speed. You'll know if it's whining. It shouldn't happen.

 

I don't know about the whine, but I blame the grinding on the skip shift. My car shifts into second smooth as silk when it's cold. Once it warms up, it is much harder to shift from first to second.

 

I'm glad I'm not the only one experiencing this. I, too, attribute it to that damned skip shift crap!

 

I too have trouble shifting into second sometimes

 

Really? Mine's just the opposite. Grinds into 2nd when it's cold, but smooth as silk after about 5 minutes of driving. I only have 2700 miles so far.