Car is almost 8 years old and even though only 45k miles, it seems like it's pretty floaty. Found an Advance Auto coupon and can get KYB rear shocks for $90/pair. Something to do on Thanksgiving Day before football.

Any detriment to doing only rears with regards to alignment? Will likely do the fronts over Christmas.

 

Did this last year, only driver side was leaking, so only replaced it,, very easy to do,, simple remove and replace,, that's it.

 

Most of the weight in most cars is in the front, that's where the wear occurs. Replacing just the rear shocks will give you an unbalanced ride. Check our Marketplace under vendor suspension for a price on all four KYBs...Gary

 

Rears are purely shocks, so nothing will change with alignment.

I did my rears first, and waiting to do the fronts. Ride improved out back, and no real difference in handling. Not enough to make me worry that I haven't done the fronts yet.

I went with the KYB's as well. $90/pair for the rears seems like a fair price.

 

Thanks for replies. Don't want to buy whole set yet because the fronts may sit around for awhile. Unless there is a super deal out there I will just do piecemeal.

 

You have so few miles on there I would bet money the stock shocks are still good unless you see visible oil leakage/spray. 45k is not a lot and age has much less bearing. I think the base g35 is a rather soft suspension.

 

shocks don't have to leak in order to be bad. Seals can wear out and shocks will not perform anymore and not leak.

You can test the shocks, but they need to be pulled out of the car for that.

As far as replacing rear shocks. You don't have to touch any suspension components in order to remove them. So once replaced alignment is not required.

You can manage to do the same thing on the front as well. The only adjustment we have on the front (coupe and probably RWD sedan) is a steering rack. So if you don't touch that, you don't need alignment.

I do my alignments anyway cuz I got free lifetime alignment with Firestone.

 

Wear out at 45k miles without being blown? I doubt it.

And yes, removing the front struts and replacing it can mess up your alignment.

 

Depends on your driving and springs you using. lowered springs will blow your shocks quickly.

As far as alignment. It depends on what bolts you touch. Control arm that shock mounts to does not adjust anything. Only adjustment on the coupe front are end links on the steering rack. So if you don't touch that, no alignment needed.

 

^been on springs on stock shocks for 5 years still going strong on my 03

 

No one said they are lowered.

Every attachment point of the front shock is as a little bit of free play. Top hat bolts, bottom attachment point. Even a small camber change will affect your toe. I would never change front shocks and not get an alignment.

 

Yikes lifetime alignments at firestone lol

 

Rear shocks stiffer than the front feels great..at least in Forza..

 

tbear35,
Is your car a sedan or coupe?
Wondering if you have tried to install it with success. If so, mind sharing the KYB part number for the rear shocks you used?
I tried to do the same to my '07 coupe today but my mechanic said the KYB P/N 349096 for the rear shocks doesn't fit. I didn't believe him since this the P/N i got from KYB website but he went ahead and showed it to me. He couldn't bolt the shock to the rear mount because the thread on the bolt was shorter than stock. Is there a special rear mounting kit or something that would make it work?

 

Wrong part number

344491. Without sport suspension
344455. With sport suspension.



349096 is the part number for 2008+. G37 coupe