: Rear Shocks



K_MAC
12-29-10, 12:35 AM
One of my rear strut bolts has broken off on my 05 ctsv, and is clunkin like crazy when I drive it. So obviously this needs to be replaced. I was curious on what you guys suggest for replacement. It seems like all the factory suspension parts are junk from what ive read.

D3l7a3ch0
12-29-10, 02:11 AM
so just the bolt is broken?

K_MAC
12-29-10, 02:22 AM
Yes the bolt is just broken, I know the bolts are built into the strut, would I be able to slide a new one in its place? I havent gotten to look at it off the car yet.

D3l7a3ch0
12-29-10, 03:03 AM
the bolts on the top or the one on the bottom?

the bottom bolt is not built-in. you can replace it

upper:

http://b.imagehost.org/0946/upper_shock_bolts.jpg

lower:

http://d.imagehost.org/0527/lower_shock_bolt.jpg

AAIIIC
12-29-10, 09:01 AM
I was curious on what you guys suggest for replacement. It seems like all the factory suspension parts are junk from what ive read.
I'm not sure what you've read that gives you that impression. I don't think I've ever read anything bad about the FG2 dampers. Unfortunately, they're apparently very hard to find new (discontinued?).

There aren't a whole lot of aftermarket options to replace just the strut. Looking a couple places online it appears the aftermarket dampers out there are intended to be replacements for the regular CTS or the softer FE4 suspension. I suppose you could do QA-1 dampers in the rear, but I don't have any personal experience with them so I don't know how they would compare to factory front dampers (might throw off the balance of the car).

Hopefully it's just the lower bolt, as D3w9238471 said, so you can just replace that. (If that's the case, use an OEM part. That's not a bolt you want to replace with something from Home Depot.)

Houdini
12-29-10, 09:55 AM
I love my FG2s but yeah they are hard to find and yeah they are expensive. There are a good number of early failure reports on this forum for FG2s (under 30k miles) but you have to keep in mind that most people post on this forum to report problems and wouldn't necessarily come on to say "hey my fg2s are great and they lasted 100k!". My car has 39k on it now and the fg2s are still going strong (no sign of oil leak yet). I hope they last much longer but who knows...

kevm14
12-29-10, 11:19 AM
I also have FG2s but the previous owner said they were fairly recent when I bought the car at 97k. It didn't have them from the factory. I would replace them with another set if anything happened. I think they are still available as a set of 4. Should be $1100 or so. Funny thing is, the replacement cost for the 09+ MR shocks is only a little more than that, and they might last longer if they can correct for valve wear over time.

K_MAC
12-29-10, 02:59 PM
Thanks guys for all the replies. Unfortunately it is one of the top bolts and not the bottom. This car is very new to me, just bought it a week ago, so kind of lost on what to replace it with. Its my daily driver and dont plan on modifying it much, I have my gto for that. It does appear that the FG2s are impossible to find now. Im guessing my options are very limited

kevm14
12-29-10, 05:25 PM
You want P/N 12499241. I get a couple hits when I google the number. But that's a set. If you want one, yeah, you are probably stuck. You could always buy a set and see if anyone else needs one (a different one). It might work out if multiple people need single shocks, or a pair from the other end of the car.

K_MAC
12-29-10, 08:15 PM
Thanks for the part number kevm. I didnt realize these factory shocks were so expensive. 1100 a set is pretty hefty, but definitely cant drive around the way it is. The local pepboys says I can get some monroe shocks for like 300 but im guessing those are more for the regular cts and the car will probably ride like crap. Hmmm might just have to charge the shocks and eat it

darkman
12-29-10, 08:24 PM
Thanks for the part number kevm. I didnt realize these factory shocks were so expensive. 1100 a set is pretty hefty, but definitely cant drive around the way it is. The local pepboys says I can get some monroe shocks for like 300 but im guessing those are more for the regular cts and the car will probably ride like crap. Hmmm might just have to charge the shocks and eat it

1. You can remove that shock and drill out the broken bolt and replace with a new bolt; or
2. You can install a single FE4 replacement shock (regardless of which shocks you are currently running)- there may even be some used ones available.

kevm14
12-29-10, 08:29 PM
If it were me I'd attempt to fix the shock before I bought a new set, for sure. If you don't want to upgrade you should have an easier time finding an FE4. I would not run any of the typical aftermarket brands. No KYB, Monroe, etc. Bilstein and Koni don't appear to make shocks for our cars...that's the way it is.

ctsv154
12-29-10, 08:50 PM
I've got a shock mount laying around somewhere. If you are interested I can try to find it.

K_MAC
12-30-10, 12:00 AM
Well I was thinking about repairing the shock since i havent tried that yet, and it could be a possability, or buying this. This is a factory shock correct?

K_MAC
12-30-10, 12:01 AM
need 5 posts for posting links lame, post 5!

K_MAC
12-30-10, 12:02 AM
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=300440191253&viewitem=#ht_3826wt_1165

ctsv154
12-30-10, 12:10 AM
If you just snapped a shock mount stud I have one. You dont need the whole shock and that is a ridiculous price for one shock anyway. But like someone said, should be able to just replace the stud with a bolt.

K_MAC
12-30-10, 12:12 AM
I havent taken the shock off yet, any type of bolt in particular or pretty much just something similiar in diameter at the local hardware store?

D3l7a3ch0
12-30-10, 02:11 AM
that's what I'd do--get another bolt.

it requires 111 ft lbs of torque, so make sure it's the right grade of bolt.

http://www.dansmc.com/torque_chart.htm

darkman
12-30-10, 07:26 AM
that's what I'd do--get another bolt.

it requires 111 ft lbs of torque, so make sure it's the right grade of bolt.

http://www.dansmc.com/torque_chart.htm

Whoa! The upper bolt torque is 18 foot pounds. (The 111 foot pound torque level is for the lower shock bolt to the knuckle).

D3l7a3ch0
12-30-10, 04:30 PM
we're both correct, but it seems I misunderstood which bolt he needs.

sorry bout that. don't torque the top bolts to 111 ft lbs. lol

kevm14
12-30-10, 07:27 PM
He wouldn't have been looking into a new shock if the bottom bolt broke.

K_MAC
12-30-10, 10:04 PM
Thanks again all for the replys, Im gonna try and put a bolt through tomorrow and hopefully everything goes well. Definitely wont be puttin 111lbs of torque on them as well =D

D3l7a3ch0
01-02-11, 09:52 PM
I was confused because I didn't think the upper bolts were replaceable.

darkman
01-02-11, 09:58 PM
I was confused because I didn't think the upper bolts were replaceable.

Sorry, Strike 2 - you really need to read the whole thread before jumping into the discussion - see Post#11.

D3l7a3ch0
01-02-11, 10:35 PM
thanks, got it.