danbo56

fellas...
it's time to swap out shocks on my 2002 Z06. I want to switch to '04's. I heard that Chey also changed the rear sway bushing's and control arm bushing too. Does anyone know the details on the '04 suspension changes? Part numbers? A good place to buy this stuff?
tanks.....

jbauch357

Can't tell ya for sure on the sway bars and such...

... but consider Bilstein Sports while looking at shocks. They will be quite a bit cheaper than the '04Z shocks, and I beleive they can be rebuilt too. I threw them on my '02Z and am very happy with the results.

danbo56

thanks....

MungoZ06

Try Gene Culley at GM Parts House if you want '04 Z shocks.

Joy of 6

Or ask Gene about the C6 Z06 shocks which are near half the price of the 04's and pretty close to the same specs. I replaced my 02Z with these and am quite happy with them.

danbo56

Ok.... i did some more homework and found part of the answer:

• Besides the new shocks, there are two other changes. Front, upper control arm bushings now use higher durometer rubber to reduce compliance. This increases front "camber stiffness" under high cornering loads, especially during hard cornering over chatter bumps. The increased camber stiffness makes the front end stick a little better so, to balance the car, a little rear end grip was added by increasing the compliance of the rear stabilizer bar mounts. This had the same effect as a slight reduction in bar diameter but was less costly than tooling-up a new rear bar.

sothpaw2

Does one have to replace all 4 or just the rears (ie is 02 front = 04 front?)

vms4evr

All 4. Well worth it.

MungoZ06

danbo56

OK... all 4 shocks got it (part number 10339944 and 10339945) ... but what about the front upper control bushing and rear stabilizer bar mounts.
Can I just goto chevy and order those parts?