Yes, in all the years that I have changed out shocks I never replaced bolts. Very 
Lower shock bolt
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Joined: Jun 2017
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From: Amarillo TX
Lower shock bolt
I'm replacing the shocks on my '05 C6 Z51. The service manual says that the lower rear shock bolt should be replace, and seeing that the torque on it is either 162 ftlb (the original torque spec) or 107 ftlb (revised torque spec), I tend to agree. Especially as these are the original shocks and they are at 75,000 miles.
I called my local Chevy dealer's parts department and inquired about the bolt and was told it had been discontinued. Nothing said about a superceded part number, only a suggestion that I try Autozone or O'Reilly's. They didn't even spend enough time for me to ask what is being used when they replace shocks in-house (and the manual says to replace the bolt)? Its this attitude that keeps me from going to this dealership to have the TSB for the steering lock performed.
The p/n is 14048990. I've found a NOS bolt online, but surely there is a current part number for this critical bolt that I could obtain locally?
I called my local Chevy dealer's parts department and inquired about the bolt and was told it had been discontinued. Nothing said about a superceded part number, only a suggestion that I try Autozone or O'Reilly's. They didn't even spend enough time for me to ask what is being used when they replace shocks in-house (and the manual says to replace the bolt)? Its this attitude that keeps me from going to this dealership to have the TSB for the steering lock performed.
The p/n is 14048990. I've found a NOS bolt online, but surely there is a current part number for this critical bolt that I could obtain locally?
Last edited by Racer1735; Apr 17, 2020 at 10:04 PM. Reason: added additional info
Drifting
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From: Mountain View California
Le Mans Master
Joined: Dec 2004
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From: West coast CA
I'm replacing the shocks on my '05 C6 Z51. The service manual says that the lower rear shock bolt should be replace, and seeing that the torque on it is either 162 ftlb (the original torque spec) or 107 ftlb (revised torque spec), I tend to agree. Especially as these are the original shocks and they are at 75,000 miles.
I called my local Chevy dealer's parts department and inquired about the bolt and was told it had been discontinued. Nothing said about a superceded part number, only a suggestion that I try Autozone or O'Reilly's. They didn't even spend enough time for me to ask what is being used when they replace shocks in-house (and the manual says to replace the bolt)? Its this attitude that keeps me from going to this dealership to have the TSB for the steering lock performed.
The p/n is 14048990. I've found a NOS bolt online, but surely there is a current part number for this critical bolt that I could obtain locally?
I called my local Chevy dealer's parts department and inquired about the bolt and was told it had been discontinued. Nothing said about a superceded part number, only a suggestion that I try Autozone or O'Reilly's. They didn't even spend enough time for me to ask what is being used when they replace shocks in-house (and the manual says to replace the bolt)? Its this attitude that keeps me from going to this dealership to have the TSB for the steering lock performed.
The p/n is 14048990. I've found a NOS bolt online, but surely there is a current part number for this critical bolt that I could obtain locally?
I've replaced shocks twice and never replaced the bolts. I'm at 143K miles now.
If 14048990 is officially discontinued, I would not expect to find a superseded part number for what is a pretty generic fastener. GM is willing to discontinue much more critical parts. Our steering racks and brake boosters, for example, haven't been available new for years.
The bolt itself is an M16 x 2.0, 100mm length, Class 9.8. According to Google there are several fastener supply stores in Amarillo. Give one of them a call.
I'd probably try Grainger and Fastenal last, because they usually have terrible prices, and Fastenal never has anything I'm looking for anyway.
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From: West coast CA
My problem is that they're a walk-in fastener specialty store that stocks only commonplace fasteners. If I'm willing to wait days I can get any fastener I need from anybody.
Last edited by torquetube; Apr 18, 2020 at 06:19 PM.
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Joined: Jun 2017
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From: Amarillo TX
From what I’ve read, the early ‘05 C6’s had bolts being snapped when torqued to 162, so GM backed the spec down. I appreciate the bolt specs, torquetube. I’m familiar with our local fastener suppliers from racing projects.
Last edited by Racer1735; Apr 18, 2020 at 09:51 PM.
Safety Car
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From: Oshawa, Ontario
Racer13735-that was for the axel nut not the shock bolt.The factory service manual calls for 107 lb/ft on the nut of the lower shock mounting bolt .No where in the factory C6 service manual does it call for the higher torque value that several have posted.Page 3-73 of your factory service manual.GM never changed the torque spec
Last edited by irok; Apr 19, 2020 at 01:21 PM.
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