I just purchased a new 2013 mustang. I was under the car for the first time the other day and noticed that my rear axle and rear differential are completly covered in rust. Everything else under the car looks good.

Has anyone else seen this on thier new 2013 mustang? is this something that I should have Ford remedy? perhaps aan undercoating or rust resistant paint? Please advise...

 

My 13 with the brembo track pack has a nicely painted axle . I thought all new 13's were painted.

 

Its just surface rust, it's fine and seems to come up once a month here.

 

It may be fine... however, nothing else on the car is rusted. i'm not used to purchasing something new that costs so much and have it rusted.

anyone else purchase a new 2013 and have a rusted axle?

 

ALL MUSTANGS HAVE RUSTED REAR AXLES, EVEN BRAND NEW.

It is what it is, learn to live with it my friend.

 

If its not painted, it's going to get rust, which is most of them.

 

its true, just sitting on the lot they all get rusty. yes, its seems all wrong. they really could put something on them. they figure the normal person will never ever see it

 

well if its true and thats how new mustangs come than my next question is can you paint them? or use some sort of undercoating? if so has anyonee doe this and what product did you use. Rust is not cool with me, have to get rid of it now that I know its there

 

It's surface rust and it's there by design. It will NOT rust 'out' or through. It actually acts as a protective coating. Sure you can paint over it, but doesn't seem worth the hassle unless it's a show car. If you decide to coat it, POR-15 is a good product.

 

Well, not all of them, some of them.

 

Shelbys,Bosses, Trackpack cars are painted now.

 

Thanks for the advice, looks like an awsome product...

anyone know what the best way to lift the car? car jack? jack stands or should I use ramps? whats everyone using these days?

 

I guess that makes sence... pay more get more.

 

The rust is there by design. The metal forms a "surface rust" that prevents any type of deeper rust that would affect the structure/integrity of the piece. T409 stainless steel does this (among others, I'm sure), which is what the GT500 axlebacks are made of. It's purely visual, and Ford doesn't deem it worth coating an axle that 9 times out of 10 (probably more) will never be seen by a consumer.

 

If you're going to coat the axle, ramps would be the most convenient, out of your way, and generally safest, although I still put jack stands in place for peace of mind.

 

I know what you are saying... Its more about perception than anything else. This is my dream car and to me its perfect. and there is no doubt in my mind in terms of exterior design, ford did a great job with the 13's... did my first mod and took the rear tires off and was a bit shocked by the amount of rust on the axle. again, ford has to determine whats worth percieved value for thier customers. "I" understand what you say above but others may not.

 

also the rust is much more noticeable when it's new cause it's orange.. after a few months it turns dark brown and doesn't stand out so much

 

That's not all that's rusted on the car. There are other pieces with the same intended rust coating.

 

I would imagine the driveshaft and manifold.... anything else?

 

The crank pulley.

That's about it. I'm sure there are more but they are smaller. Seems like the bolts that go into the LCAs and such are the same.