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08-08-2022, 08:46 PM
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#1 |
 Drives: '86 IROC-Z '18 ZL1 Join Date: Jul 2019
Location: Arizona
Posts: 731
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aftermarket bolts for suspension parts?
So im looking to change out some rear suspension parts for BMR parts. That being said, since the factory uses TTY bolts, they have to be replaced. I know BMR says they don't, but I guess better safe than sorry.
Are there any bolts out there that are like normal / multi use bolts? These are the bolts and nuts im going to have to change out. 2x 11610909 10x 11610908 12x 11516078 2x 11611276 2x 11609598 2x 11611265 |
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08-08-2022, 09:04 PM
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#2 |
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Petro-sexual
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You could just match them to high grade bolts at a hardware store, or ARP makes a crap-ton. If you give them dimensions, they could probably match them to what they have.
__________________
 '20 ZL1 Black "Fury" A10, PDR, Exposed CF Extractor Magnuson Magnum DI TVS2650R // RFBG // Soler 103 // TooHighPSI Port Injection // THPSI Billet Lid // FF // Katech Drop-In // PLM Heat Exchanger // ZLE Cradle bushings // BMR Chassis-Suspension Stuff // aFe Bars // Diode Dynamics LEDs // ACS Composites Guards // CF Dash // Aeroforce // tint // other stuffs |
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08-08-2022, 09:17 PM
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#3 | |
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Drives: '86 IROC-Z '18 ZL1 Join Date: Jul 2019
Location: Arizona
Posts: 731
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Quote:
Ok. I wasn't 100% if going to somewhere like HD or Lowes would work for a better bolt . |
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08-08-2022, 09:52 PM
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#4 | |
 
Drives: 18 ZLE, 18 SS1LE, 16 SS, 23 ZL1 Join Date: Jan 2021
Location: Phoenix Arizona
Posts: 401
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08-09-2022, 12:16 AM
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#5 |
Drives: Chevrolet Camaro ZL1 Join Date: May 2022
Location: Concordia
Posts: 437
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I would just use the same stuff.
In all my years wrenching on GM cars (including my own) I have never had a "TTY" bolt fail, or back out, or lose it's clamping capability due to reusing it and I continue to reuse all of the "TTY" nonsense to this day even in this car. I'm sure someone will come in here and jump down my throat for saying it, but that's just my two cents based on experience.
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2017 Red Hot ZL1 A10 - Apex ARC-8's, 305/ 325 PS4's, DSX 9.06 12% Pulley, NGK HR7 Ruthenium spark plugs, Katech Oil Pump, LME tensioner, DOD delete, Cam, MPI lid, Soler ported 87mm (91mm effective) TB, Granatelli SS plug wires, Cordes LTR reservoir, DMS T-stat housing, Borla X pipe, AFe NPP exhaust, Black Widow Angry Housewife/ Venom 250 mufflers, BMR engine mounts, Banks iDash, Lithium Battery, Course Motorsports phone mount, AEM X- Series, HP Tuners, JMS, E85, 13.6 psi
737 HP/ 779 TQ  |
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08-09-2022, 01:40 PM
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#6 | |
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Drives: '86 IROC-Z '18 ZL1 Join Date: Jul 2019
Location: Arizona
Posts: 731
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Quote:
they are on the westside, even better! |
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08-09-2022, 02:39 PM
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#7 |
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Drives: Chevrolet Camaro ZL1 1LE Join Date: Oct 2021
Location: NY
Posts: 701
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I reused my OEM TTY Cradle Brace bolts if that's what you're referring to. GM Recommends changing them but according to them they did not replace them during development. (forgot where I read that but I did indeed read it).
When reusing them I torqued to spec and then rotated an additional 90* |
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08-09-2022, 07:58 PM
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#8 |
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Petro-sexual
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I reused all my control arm fasteners. Only one had come a little loose so far and I retorqued and seems to be holding just fine. I actually have a whole bag of new fasteners (not nuts) for all those bolts (and cradle, just because) when I feel like replacing them. Getting wrenches in some of those spots is a bit of a PITA in a couple spots. I figure I'll replace them when my OCD takes over.
You probably don't have to get crazy with ARP bolts, but if you get the equivalent of grade 8 (which is something like 10.9), you should be good. They'll probably be a lot less expensive than ARPs, which are great, but maybe overkill for this application.
__________________
'20 ZL1 Black "Fury" A10, PDR, Exposed CF Extractor Magnuson Magnum DI TVS2650R // RFBG // Soler 103 // TooHighPSI Port Injection // THPSI Billet Lid // FF // Katech Drop-In // PLM Heat Exchanger // ZLE Cradle bushings // BMR Chassis-Suspension Stuff // aFe Bars // Diode Dynamics LEDs // ACS Composites Guards // CF Dash // Aeroforce // tint // other stuffs |
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08-09-2022, 11:24 PM
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#9 |
        
Drives: 2022 1SS 1LE A10 BCD WCT+PDR Join Date: Mar 2008
Location: Johnstown, PA
Posts: 3,200
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The nuts do not need replaced. Just the TTY bolts according to the service manual. I've already swapped out some of my TTY for non TTY on arms I've removed/replaced. I agree on the TTY BS, but I'd rather have piece of mind and not find out otherwise. Definitely don't need ARP, just match the grade (most are 10.9) and the shoulder length if possible.
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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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08-09-2022, 11:45 PM
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#10 | |
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Drives: '86 IROC-Z '18 ZL1 Join Date: Jul 2019
Location: Arizona
Posts: 731
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Quote:
Kinda where I'm at. I skipped the 12 nuts, at like $2.50 / each  But I figure $60 for peace of mind. Why not. Worse case I waste $60.
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08-10-2022, 07:37 AM
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#11 |
Drives: '22 Summit White ZL1 A10 Join Date: Aug 2019
Location: Virginia
Posts: 459
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I just went ahead and bought all new OEM GM bolts.......
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2022 ZL1 Summit White A10
2020 GT350 Heritage Edition-Chassis L0350 2019 ZL1 Summit White M6 2018 Hellcat White Knuckle M6 2016 Hellcat GoMango A8 2002 Dodge Viper Viper Red 2002 Corvette Z06 Millennium Yellow 1998 Dodge Viper Viper Silver Metallic |
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08-10-2022, 08:24 AM
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#12 |
 Drives: 2022 LT1, 1981 320i Join Date: May 2022
Location: Massachusetts
Posts: 71
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I don't believe that are actually TTY. I welcome evidence to the contrary, but I think that's why so many people get away with it. OEMs say that they have to be replaced for liability reasons but I think they are just a high grade fastener that should be torqued properly.
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08-10-2022, 10:29 AM
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#13 |
  
Drives: 2016 1ss camaro Join Date: Feb 2016
Location: 909
Posts: 9,813
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you guys are changing those out every time? lol i got a new set when i installed my coilovers and spl parts but thats once in 6 years never had any issues
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 16 1SS NIGHTFALL GRAY METALLIC WITH NPP #BECAUSERACECAR #SAVETHEMANUALS |
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08-10-2022, 11:07 AM
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#14 | |
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Drives: 2018 ZL-1 Join Date: Jan 2018
Location: Albuquerque
Posts: 948
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Just put in all new GM fasteners when you replace the stock stuff with the BMR stuff, or upgrade as you see fit. Going forward, you only have to replace 6 TTY bolts when you do an alignment if you go the GM bolt route. They are not expensive, and the alignment holds tight. I have all service work done at the dealer, so the bolt replacement is built into the price of the alignment. This is for street use.
I would take the TTY stuff seriously. What you upgrade to is up to you, but I would not re-use any TTY bolt that has been torqued to its yield point. |
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