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#43 |
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After 4 alignments and a lot of track use I'm finally going to replace the bolts. For sure they are a lot cheaper online
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#44 |
![]() Drives: 2019 Chevy Camaro ZL1 1LE Join Date: Nov 2019
Location: MS
Posts: 143
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I just purchased the rear camber and toe bolts online at gmpartsdirect. 12 bolts will cover several alignments and were $118.50 shipped.
I'll be supplying them to the local Chevy dealer or to whoever does future alignments. A lot cheaper than buying them locally, but still freaking expensive for bolts. |
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#45 |
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Drives: 2017 2SS M6 Join Date: Jun 2013
Location: WNY
Posts: 7,070
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i found that ever TTY bolt on this car measured the same after being properly torqued as the new GM bolts using a starrett micrometer.
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real ZL1 wheels and brakes, 285/305 Michelin Pilot Super Sports, Pray ported Intake manifold, Soler Throttle Body, Rotofab intake, EFI Tuning Flex fuel kit, full American Racing Headers Exhaust, 1 7/8" w/ cats H pipe and mufflers. Full 1LE suspension, with BMR adjustable sway bars and links, GM aluminum cradle bushings, Hurst shifter with lighter reverse spring, TWM shifter knob, Tick level 1 transmission. I should have bought a ZL1
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#46 | |
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Drives: 2022 1SS 1LE A10 BCD WCT+PDR Join Date: Mar 2008
Location: Johnstown, PA
Posts: 3,220
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Quote:
If the bolt did not (permanently) stretch with the proper tightening spec, then it did not yield and there is no degradation to the bolt. It can be reused.
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2022 1SS 1LE A10 BCD WCT+PDR2014 1SS 1LE NPP RECARO SIM-SOLD1995 Z28 M6 GSC PGM-SOLD1975 NOVA COUPE 300HP 350 TH350 FLASH RED-SOLD
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#47 |
![]() Drives: '19 ZLE, S54 E36M3 Join Date: Feb 2018
Location: North Augusta, SC
Posts: 227
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I just finished doing track alignment on my ZLE. Based on Jimmy’18’s post above, I was very careful breaking loose the front strut bolts. I was afraid I was going to snap my breaker bar, but finally got them loose and got it done without doing any damage. I used new bolts in the rear and tightened per spec. It took WAY more torque to achieve the specified angle than I would have ever put on a bolt that size normally, so I’m not surprised if most shops don’t get them tight enough. We will see how well it holds.
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#48 |
![]() Drives: 2018 SS, 2016 GT Join Date: Mar 2018
Location: California
Posts: 210
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So only 2 bolts in the rear are replaced correct? My alignment guy caught this, I didn't even know but he said I need 3 bolts on one side, 2 for camber and 1 for toe.
So I'm confused. |
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#49 |
![]() Drives: 2019 Chevy Camaro ZL1 1LE Join Date: Nov 2019
Location: MS
Posts: 143
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Two bolts per side on rear. Nuts can be reused.
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#50 |
![]() Drives: 2018 SS, 2016 GT Join Date: Mar 2018
Location: California
Posts: 210
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#51 |
![]() Drives: 2020 1SS 1le Join Date: Apr 2019
Location: SO CAL
Posts: 440
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So after much research on this I purchased new bolts. Brought it to my alignment shop told the guy. He was friends with a GM exec and called.him.because I wasn't really sure we had to replace them. Long story short they started saying to change these bolts after "something happened" they can't talk about but their lawyers made them put it in there. Use them a few times then change them will be fine. Don't have to take it from me. But that's what went down and I was there for all of it.
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#52 |
![]() Drives: ZL1 Join Date: Jan 2019
Location: Abu Dhabi
Posts: 200
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Just to confirm before ordering:
two of : https://www.gmpartsdirect.com/oem-pa...-bolt-11611276 two of : https://www.gmpartsdirect.com/oem-pa...-bolt-11547215 are those the correct parts for a ZL1 2018? |
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#53 |
![]() Drives: '19 ZLE, S54 E36M3 Join Date: Feb 2018
Location: North Augusta, SC
Posts: 227
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Correct.
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#54 |
![]() Drives: ZL1 Join Date: Jan 2019
Location: Abu Dhabi
Posts: 200
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#55 |
![]() Drives: '19 ZLE, S54 E36M3 Join Date: Feb 2018
Location: North Augusta, SC
Posts: 227
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I did alignment before my first track day in the ZLE, and rechecked it afterwards and found no change. New bolts, tightened to torque + angle specs. Not much curb hopping at Roebling Road, though. Checked again after two days at Road Atlanta, and found the LR toe had shifted slightly, and the RR toe had shifted to over half a degree of toe-out. Now I need more bolts... I was hoping that the issues most people were having was the result of improperly tightened bolts, but I’m convinced now.
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#56 |
![]() ![]() Drives: 2018 Camaro SS 1LE Join Date: Jul 2018
Location: Stuttgart, Germany
Posts: 807
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Excellent thread!
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