Help with C5 shock installation
1) Cultrag did not supply a top nut and the one from the Monroe is not a fit, I'll find one but - I assume I re-use the big flat washer there, install it on top of the shock rubber (it sticks up through the hole in the chassis about an inch) then torque it, to what spec? I have the full corvette c5 torque specs but not sure that's correct for these. Same question for the bottom, what torque for those two bolts/nuts?
2) At the bottom, with the shock in place, no matter how i jack the wheel up/down, the flanges on the bottom of the shock never line up to lie flat to where they will bolt down. Again, I see these shocks are a perfect match to the one removed so I guess once it's all bolted down it will lie flat. I hope.
2 pics of top of installed new shock with and without that washer, 1 pic of the bottom of the shock, included
Removing the windshield washer housing to get at that top nut sure made removal easy!

1) Cultrag did not supply a top nut and the one from the Monroe is not a fit, I'll find one but - I assume I re-use the big flat washer there, install it on top of the shock rubber (it sticks up through the hole in the chassis about an inch) then torque it, to what spec? I have the full corvette c5 torque specs but not sure that's correct for these. Same question for the bottom, what torque for those two bolts/nuts?
I believe you simply tighten them till the rubbers are tight, and don't overdo it. I don't have my service manual here (it's at work) but I can check tomorrow if you don't get another answer.
2) At the bottom, with the shock in place, no matter how i jack the wheel up/down, the flanges on the bottom of the shock never line up to lie flat to where they will bolt down. Again, I see these shocks are a perfect match to the one removed so I guess once it's all bolted down it will lie flat. I hope.
They will rotate to the proper position. It sits in a big spherical socket and when new, probably isn't happy about moving around. It will.
2 pics of top of installed new shock with and without that washer, 1 pic of the bottom of the shock, included
Removing the windshield washer housing to get at that top nut sure made removal easy!
I put Bilstein B6 on my C5 back in May and it was very easy to do. Learn from the vids on you tube and use Bilstein B6 Shocks. These B6 shocks are 3 times better than OEM.
RE the bottom of the shock not seeming to 'line up', two say remove and rotate it 180, god I hope that's not the case, getting that shock back out will not be fun. And I don't believe (?) rotating it 180 is the answer, that would really put those mounting flanges at the bottom of the shock at a crazy angle. BUT I will look at the other side which I've not started yet to see.
On top, I guess I'll just buy 4 nuts today, use the existing big somewhat domed washer from the old shocks, and tighten it down. I see 19 ft lb for top and 21 ft lb for bottom listed for the C5 torque values, I'll see what that does.
update - I think re the bottom I just don't have the lower control arm jacked up high enough to seat the bottom flanges of shock to it, the one I'm using topped out. Hitting the store to find the correct top nuts, hopefully find some nyloc ones, and get it finished. I'm also doing inner/outer tie rods and ends and sway bar link kits all the way around, all Moog.
Last edited by DWC4; Aug 18, 2019 at 10:29 AM.
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Now that it's extended, you're probably just going to have to be sure the bolts get started properly and draw them in. Try to get a punch or screwdriver into one of the holes and twist the bracket while you start the other bolt.
Last edited by Ed Ramberger; Aug 18, 2019 at 10:30 AM.
This is a youtube video screen capture. So I've got the shock in the right way, not 180 off. I just need to jack the lower arm to get mine to level out so I can tighten the two bolts down.
Now that it's extended, you're probably just going to have to be sure the bolts get started properly and draw them in. Try to get a punch or screwdriver into one of the holes and twist the bracket while you start the other bolt.
Last edited by DWC4; Aug 18, 2019 at 10:46 AM.
Now that it's extended, you're probably just going to have to be sure the bolts get started properly and draw them in. Try to get a punch or screwdriver into one of the holes and twist the bracket while you start the other bolt.
Bought top nuts at Home Depot M10-1.5MM, nylon seal, under a buck each. Cultrag, for a $300+ shock order you should toss in $3.00 worth of nuts. Or at least sell them with the order.
At the bottom just do whatever works for you to turn that bar straight enough to get the bolts installed.
Cultrag sells them how they come from GM....
Last edited by lionelhutz; Aug 21, 2019 at 04:45 PM.



















