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 Trouble with Rear Shocks

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okiedrifter
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PostSubject: Re: Trouble with Rear Shocks   Thu Oct 25, 2007 2:36 pm

i'm lost again! (whats new, right?) my rear is confusing me, my passenger side rear, is riding way low to the point of a rough ride, but the rear drivers side is perfectly fine, now for the doosey, the drivers side air shock has a tear whereas the pass side is only dry rotted. both are deflated but my car sits sideways. help!
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AA
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PostSubject: Re: Trouble with Rear Shocks   Thu Oct 25, 2007 3:08 pm

Could be the one that looks torn really isn't, and the one that doesn't look torn is leaking. How old are the shocks?

_________________
'98 SC Riviera 268k miles 298 HP/370 TQ 0-60: 5.79s ET: 13.97 @ 99.28 4087 lb 20.1 avg MPG Nelson Ledges Lap: 1:30
3.4" pulley AL104 plugs 180 t-stat FWI w/K&N 1.9:1 rockers OR pushrods LS6 valve springs SLP headers ZZP fuel rails
KYB GR2 struts MaxAir shocks Addco sway bars UMI bushings GM STB Enkei 18" EV5s w/ Dunlop DZ101s F-body calipers
EBC bluestuff/Hawk HP plus SS lines Brembo slotted discs DHP tuned Aeroforce Hidden Hitch


'05 GTO 49k miles 0-60: 4.8s 16.9 avg MPG Nelson Ledges Lap: 1:26
Because fun
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PostSubject: Re: Trouble with Rear Shocks   Thu Oct 25, 2007 3:42 pm

Have you checked the condition of the upper mounts, and the coil springs? Could be something in those areas contributing to the uneven status. Have you unhooked the lines to both shocks to see if any air escapes?
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AA
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PostSubject: Re: Trouble with Rear Shocks   Thu Oct 25, 2007 4:48 pm

On mine, the air lines are connected. If you pull one, both shocks leak the same.

_________________
'98 SC Riviera 268k miles 298 HP/370 TQ 0-60: 5.79s ET: 13.97 @ 99.28 4087 lb 20.1 avg MPG Nelson Ledges Lap: 1:30
3.4" pulley AL104 plugs 180 t-stat FWI w/K&N 1.9:1 rockers OR pushrods LS6 valve springs SLP headers ZZP fuel rails
KYB GR2 struts MaxAir shocks Addco sway bars UMI bushings GM STB Enkei 18" EV5s w/ Dunlop DZ101s F-body calipers
EBC bluestuff/Hawk HP plus SS lines Brembo slotted discs DHP tuned Aeroforce Hidden Hitch


'05 GTO 49k miles 0-60: 4.8s 16.9 avg MPG Nelson Ledges Lap: 1:26
Because fun
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PostSubject: Re: Trouble with Rear Shocks   Thu Oct 25, 2007 5:55 pm

true... although when I pulled mine there was a fair amount of air still in the 2nd shock.
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dreww
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PostSubject: Re: Trouble with Rear Shocks   Fri Oct 26, 2007 12:59 am

AA wrote:
On mine, the air lines are connected. If you pull one, both shocks leak the same.

mine too on a 96. at least it makes it harder to track a leak that way rolleyes
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Jack the R
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PostSubject: Re: Trouble with Rear Shocks   Fri Oct 26, 2007 1:14 am

Seems like the first step would be to replace both shocks?
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albertj
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PostSubject: Re: Trouble with Rear Shocks   Sun Oct 28, 2007 6:33 pm

rockauto.com has the Delco shocks *including* the mounts at a pretty good price, I bought a set some weeks ago & installed them. They were in *very* nice shape, appeared to be NOS (had GM not Delco part numbers). Installation guide and replacement top nuts are included. Installation could be easier but I'm not sure how - you may want to get new c-clip nuts and matching graded bolts for the bottoms. Carquest or Home Depot for those. Best to get one off and take to carquest or napa to match up, *or* get a set of 4 at a dealer, they are not real expensive and dealers keep them around as 'shop supplies' anyway.

Look elswhere on this board for comments about the Monroe and Gabriel replacements. They are somewhat less expensive ut you have to buy the mounts separate if yours are no good (and actually if you have lots of miles on the mounts you may want to repace anyway).

Oh by the way if those rubber caps are missing - the ones that basically are trim - you'll find them at the local junkyard (pick & pull) in the obvious locations in the trunks of late '90s grand am/achieva/gee what is the name of the chevy?/skylark.

happy shocking
albertj
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robertwolf86
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PostSubject: Re: Trouble with Rear Shocks   Sun Oct 28, 2007 8:23 pm

if your air ride motor works fine then unhook the air lines at the top of the shocks and have someone pushdown on the trunk. after it is pushed down befor you let it up put the air tubes back on the shocks and leet off the trunk. turn the car on and see if they come up evenly.
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okiedrifter
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PostSubject: Re: Trouble with Rear Shocks   Wed Oct 31, 2007 2:47 pm

problem solved!! it seems as though my rear shocks were STOCK and at 187,000mi i could see the dilima. what happened was the rear passenger shock LOCKED UP TIGHT! and everytime i hit a bump it jammed it lower to till the shock ran out of travel. so much so that when i jacked the car up the tire was still up in the wheelwell! i had to put a jack under the lower control arm and unbolt the shock to let the spring uncompress. wierd huh? well so i look online for shocks and average price was $200. i call napa and they say $75. im in! so i go there and the lady rings them up at 150 somethin,($75 a piece) and i explained to her my phone call and she rechecked and said ok whatever. so i think i got half off due to misunderstanding. so try it if you can. the new ones are on and the car rides like new. (and sits back up too) i kinda enjoyed the slammed on the ground look! :-)
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AA
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PostSubject: Re: Trouble with Rear Shocks   Wed Oct 31, 2007 3:22 pm

Not that weird. With that many miles, I'm surprised the shocks were still supporting the car at all. Monroe makes drop-in Max-Air replacements sold through Summit Racing for $69.95/pair:

http://store.summitracing.com/partdetail.asp?autofilter=1&part=MON%2DMA822MM&N=700+4294908256+4294908237+4294924677+115&autoview=sku

If you want a "low-rider", just deflate the shocks to about 20 PSI.

_________________
'98 SC Riviera 268k miles 298 HP/370 TQ 0-60: 5.79s ET: 13.97 @ 99.28 4087 lb 20.1 avg MPG Nelson Ledges Lap: 1:30
3.4" pulley AL104 plugs 180 t-stat FWI w/K&N 1.9:1 rockers OR pushrods LS6 valve springs SLP headers ZZP fuel rails
KYB GR2 struts MaxAir shocks Addco sway bars UMI bushings GM STB Enkei 18" EV5s w/ Dunlop DZ101s F-body calipers
EBC bluestuff/Hawk HP plus SS lines Brembo slotted discs DHP tuned Aeroforce Hidden Hitch


'05 GTO 49k miles 0-60: 4.8s 16.9 avg MPG Nelson Ledges Lap: 1:26
Because fun
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http://www.cardomain.com/ride/657082/4
albertj
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PostSubject: Re: Trouble with Rear Shocks   Thu Nov 01, 2007 11:07 am

The NAPAs are Monroes, and $75/pair sounds right.

You can adjust the control arm for the ride sensor to adjust rear ride height *BUT* I don't think you should - suspension is kind of soft, you actually need the longer travel, and if you ever pile your buds into the car, you need the air pressure.

albertj
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