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Old 02-04-2009   #1
-=Jeff=-
 
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Default FX3 Shocks and Coilover questions

first one..

outside of the FX3 adjusting not working or a obvious leaky shock

how do you tell if they need to be rebuilt/replaced?

Second,

for those with coilovers, where is the groove cut for the snap ring? a measurement would be great!! also what length spring are you using?

I have a solution I want to try for coilovers.. but i need to get the shocks grooved and not sure exactly where on the shock to get the groove cut.

I have the coilover kits, I just need springs
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Old 02-05-2009   #2
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Default Re: FX3 Shocks and Coilover questions

nobody?
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Old 02-06-2009   #3
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Default Re: FX3 Shocks and Coilover questions

Okay I'll offer up this fwiw on what my OE shocks were doing before I coughed up the $700.00 +

Over undulating road surfaces, not potholes or sharp bumps, just gentle waves in the road surface at speed the car would wallow & porpose. It was a gradual type of thing. Like in tour it would be pretty bad, so switch up to sport & it went away. Then it got to the point that even in sport it would happen. Try perf mode and it went away. That's when I figured there must be something wearing/worn out?

I don't have C/O's, but if you send the shocks to Bilstein or DRM & tell them you're going to C/O's they will put the grooves in the rods when rebuilding the shocks.


Tom
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Old 02-06-2009   #4
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Default Re: FX3 Shocks and Coilover questions

Quote:
Originally Posted by tomtom72 View Post
Okay I'll offer up this fwiw on what my OE shocks were doing before I coughed up the $700.00 +

Over undulating road surfaces, not potholes or sharp bumps, just gentle waves in the road surface at speed the car would wallow & porpose. It was a gradual type of thing. Like in tour it would be pretty bad, so switch up to sport & it went away. Then it got to the point that even in sport it would happen. Try perf mode and it went away. That's when I figured there must be something wearing/worn out?

I don't have C/O's, but if you send the shocks to Bilstein or DRM & tell them you're going to C/O's they will put the grooves in the rods when rebuilding the shocks.


Tom
Thanks tom.. that is what I was looking for.. I will probably buy a pair of fronts and get the rears rebuilt.. Although I was told by a guy at Bilstein, $65 per shock to rebuild and i did tell him they were FX3 shocks..
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Late Model IH - Plenum
Coilovers - 4.10s
Custom Interior
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Old 02-06-2009   #5
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Default Re: FX3 Shocks and Coilover questions

Jeff, no problem. You might hit up Ron (cuisenartvette) he had Bilstein rebuild his shocks....I seem to recall the final total on the bill to be around $400.00...or in that area. He didn't have C/O's...I don't think. I know that there is an extra charge added to put the grooves on the shafts.


Tom
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Old 02-06-2009   #6
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Default Re: FX3 Shocks and Coilover questions

Jeff, i have that info in my garage don't know it at the top of my head.

I can get it for you later today.

Pete
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Old 02-07-2009   #7
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Default Re: FX3 Shocks and Coilover questions

Tom,

I did think of that. I am looking at the pair on eBay, they claim to be OEM parts. ZR1vette (Michael) bought a set.

I have a set on my car and a set ready to be rebuilt. I have a couple other ideas as well. I am limited on funds and need to spend my dollar wisely this year..

Thanks for the thoughts though
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1990 Corvette ZR-1 #1051
Watson Headers (2" Primary) - 3" Magnaflow Bullet cats - LT4 Catback
Late Model IH - Plenum
Coilovers - 4.10s
Custom Interior
NCM Lifetime Member #978
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Old 02-07-2009   #8
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Default Re: FX3 Shocks and Coilover questions

Jeff, thanks for not taking me the wrong way!

I just wanted to make sure to mention that the valving on the replacement stuff is softer than the original assembly line stuff that came with the cars.

I was concerned for any possible negative effects of having two pairs of shocks with dramatically different valving.

I hear ya about the dinero situation. Ya know I was thinking that when Ron was done with the rebuild he spent over $500.00 on all four, I'm almost positive. His thread is here in the tech section. I followed it because Jeff offered his diagnosis on what my car was doing & he reminded me to either rebuild all four or replace all four at the same time. I also remember that Ron had kind of a sour taste after his experience with Bilstein....kind of nickle & dimed him to death & the shocks came back not even painted! That's what tipped me to just buy new ones and maybe send my OE ones out later.


Tom
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Old 02-07-2009   #9
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Default Re: FX3 Shocks and Coilover questions

Yeah maybe I will just groove my current shocks and use them for now..
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1990 Corvette ZR-1 #1051
Watson Headers (2" Primary) - 3" Magnaflow Bullet cats - LT4 Catback
Late Model IH - Plenum
Coilovers - 4.10s
Custom Interior
NCM Lifetime Member #978
-=Jeff=- is offline   Reply With Quote
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