Hi, I just bought an 04 g35 over the weekend and I noticed today that the tires in the front were bigger than the ones in the rear...

I thought that was strange since it's a RWD.

So I took it to a trusted local tire shop to get them switched and they showed me the ones in the front were worn on the inside indicating suspension/alignment problems.

Now I don't know that much about these cars and if someone could please give me an explanation to why someone would do that, I'd really appreciate it as it has me kinda worried.

The car does drive perfectly straight with no tire roar or any noise right now as well if that helps any.

Thank you for any help!

 

The front tires are bigger in what way? Sidewall or width? Is the car lowered? Its not really that uncommon to have wear like that on any type of car if it wasnt properly maintained.
Did you have the tire shop do an alignment? Yuu might want to make sure that its all into spec before you put too many miles on it.

 

I believe they're wider, here goes a picture if that helps at all.

 

Check the sizes and let us know what they are, or else we don't know what's really going on.

Also take pics of the wear, it could be anything from someone just not getting it aligned to a bigger problem, but if it drives straight and makes no noise it's probably just the prev owner not aligning it

 

Alright, once I get home I will take some pictures and post it here.

Do you think the previous owner didn't get it aligned and wore out the tires on the inside, then either him or the dealership got it aligned and just switched the tires?

 

The g's are notorious for eating up front tires. Its a fat car and in order to make it handle Nissan had to give it some aggressive alignment up front. whether there is an alignment issue depends on how old the tires are. expect to replace your front tires more often than you normally would. or rotate them often to prevent excessive inner wear.

 

Alignment will help tire wear if the rest of his suspension doesn't have a bunch of worn/broken parts. Only way to find out would be to have an alignment shop check his suspension.
Gary

 

You definatly need an alightment, but here's what happened. The pervious owner of this car took it to a tire shop and had a rotation done on the car not knowing that the front and rear wheels were different sizes. If your an idiot or in a hurry you probably wouldn't notice the difference in actual size either. So they got put on that way from a rotation, and then the car was traded in to the dealership. I HIGHLY doubt the dealership or anyone else put the wider rear wheels on the front of the car on purpose. Honest mistake.

That being said, you should have an alignment done on your car at least every 20k miles. even a pothole in the road can kick your caster and camber out causing premature tire wear.

 

You guys are all missing the obvious. Previous owner rotated the tires so the worn rears are now on the front. This explains both the larger size and wear pattern.

 

Not necessarily the previous owner, some dealerships don't know any better. I had a co-worker that took her 350Z to a tire shop and rotate her tires...of course her VDC was acting up.

 

correct me if im wrong but most dealerships will not do any kind of maintanence on a used car thats traded in. they jus check it real quick and thats it. unless its a live or death issue theyre not gonna work on it for free. so i doubt the dealership did anything and most likely the prev owner did it