C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Lower control arm removal

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Old Nov 16, 2015 | 10:05 AM
  #21  
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Originally Posted by WW7
Maybe I'm missing something here , but if you cut the bolt because you can't get it out, how do you get the new bolt in? ...Wouldn't you have the same clearance problem getting the new bolt in as you had getting the old bolt out?....?...WW
Exactly as mentioned, reverse orientation which is very common in these instances with our control arms and the bolt fits perfectly. There's nothing "special" about the bolts except for size and the design. As long as the bolt matches up in those ways, you are good. The factory is not the only place that manufacturers hardware that meets the standard for suspensions. Most of the aftermarket companies offer replacement pieces that aren't from the factory. But everyone is free to do what they feel is best. Good luck to the OP for whichever he chooses
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Old Nov 16, 2015 | 10:22 AM
  #22  
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Cutting the bolt is without a doubt the easiest way.

Someone mentioned there is nothing special about the bolts. I would advice not replacing it with any old bolt from the hardware store.

Make sure to match the grade of the new bolt with the old one...very important.
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Old Nov 16, 2015 | 10:30 AM
  #23  
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Originally Posted by 9T3VETTE
Cutting the bolt is without a doubt the easiest way.

Someone mentioned there is nothing special about the bolts. I would advice not replacing it with any old bolt from the hardware store.

Make sure to match the grade of the new bolt with the old one...very important.
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Old Nov 16, 2015 | 10:37 AM
  #24  
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I agree. Sorry I didn't mention that but Definately go with the same grade bolt and not just a general off the shelf. There's a place here locally that stocks just about anything in various grades.
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Old Nov 16, 2015 | 12:45 PM
  #25  
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I read your info as followed.



The bolt has the 13mm shoulder for x-member fit, a 12mm shoulder for the bushing bore and a the reduced diameter that is accomplished by the threading operation which likely the x-member bore is adjusted to accommodate.


wvzr1 where did you get these mesurments?

always wanting to learn!!!!!

Last edited by antfarmer2; Nov 16, 2015 at 01:02 PM.
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Old Nov 16, 2015 | 04:58 PM
  #26  
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Thank you everyone for your replies.
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Old Nov 16, 2015 | 05:04 PM
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Originally Posted by Erniep
Thank you everyone for your replies.
your welcome let us know how it works out.
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Old Nov 16, 2015 | 05:05 PM
  #28  
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Originally Posted by antfarmer2
have that but after 30+ years in the factory have found many ways easyer and faster. who do you think puts the info up for the FSM? and do really think we do repairs by the book when doing repairs in the factory?
I worked as a flat rate tech, I know the ways to save time. Doesn't mean I do "hack" work. I won't do that. Sometimes more work is less work. I've learned that the hard way. Removing one component to get to the hard to reach one is sometimes the fastest way. You cannot short cut everything. The FSM gives you can idea at least. In this case the K braces come out, its pretty easy actually. Maybe takes 5 minutes with hand tools even working on a creeper and stands.
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Old Nov 16, 2015 | 05:20 PM
  #29  
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Originally Posted by 93Rubie
I worked as a flat rate tech, I know the ways to save time. Doesn't mean I do "hack" work. I won't do that. Sometimes more work is less work. I've learned that the hard way. Removing one component to get to the hard to reach one is sometimes the fastest way. You cannot short cut everything. The FSM gives you can idea at least. In this case the K braces come out, its pretty easy actually. Maybe takes 5 minutes with hand tools even working on a creeper and stands.
and don't do hack work but common sense does come into play. would love to see your five min video of the brace. always wanting to learn.

and I gave him both ways to fix it his choice what else do you think I should have done?

looking back at your advice on this thread has been telling him to read a book and calling me a hack. how is this helpful?

Last edited by antfarmer2; Nov 17, 2015 at 11:09 AM.
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Old Nov 17, 2015 | 09:15 AM
  #30  
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one case I remember was on a 77 nova. the drive indicator not working. first step to fix by the book was pull Instrument panel.our way was to move the seat forward. then put your knees gently on the lower part of the panel with slight pressure. and feel for it while seeing the indicator move and line it up. then grab the steering wheel and push hard with your knees locking the pin in place. one of many (HACK) jobs I have learned over the years. by doing it by the book would have cost alot more and a good chance of doing more damage. I know getting paid by the hour makes more money but not always more sense!!!!!!!!!!!

Last edited by antfarmer2; Nov 17, 2015 at 11:08 AM.
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Old Nov 17, 2015 | 06:03 PM
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Just for clarification, hack job, to me is not what your describing. Finding a quicker way WITHOUT doing any damage to anything else or causing undue strain is not hacking stuff.

What is hacking? Making holes in things that should not have holes to get to a component/bolt. I've seen it done. Not putting things back together right, breaking stuff and not fixing it, busting stuff on purpose instead of working smarter, pad slapping brake jobs WITHOUT lubricating anything!!!! Pet peeve of mine! Then they wear out fast because the pins are seized,etc....

I've had plenty of jobs that I tired to find a short cut and that wound up taking longer than just doing it the way the book said. Just depends on the car and situation. Its very hard to short cut newer cars. The book is a guide, but you have to use your own brain. Sometimes your too smart for your own good. I've been burned by the book and burned by my "short cut." Try finding a short cut to a Blend door motor on a Nissan Titan, ain't gonna happen. That dash is coming out wither you like it or not!

The FSM says to remove the K braces. Its a procedure so you don't have to buy bolts. If you want to cut them and then spend the money. That is your business. He asked how to remove, the FSM says to remove K braces. How is that NOT helpful.

IMHO, if your wrenching on vehicles without some sort of information your either a genius, taking a educated guess, or flying blind. I don't remember everything about every car or even my C4. I look up stuff all the time. Kinda makes sense?

Last edited by 93Rubie; Nov 17, 2015 at 06:07 PM.
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Old Nov 17, 2015 | 06:16 PM
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thats fine but if you look you will see I already told him that with the size and number of bolts.

sorry that I took offence but you did tag my post with your hack comment.

and for makeing holes you must have never done a timming belt in a ford escort LMAO

Last edited by antfarmer2; Nov 17, 2015 at 06:30 PM.
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Old Nov 17, 2015 | 08:56 PM
  #33  
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So what control arm bushings is everybody using? I can't seem to find the regular rubber ones anywhere. Is everyone using the polyurethane ones ?

Last edited by Erniep; Nov 17, 2015 at 08:57 PM.
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Old Nov 17, 2015 | 09:06 PM
  #34  
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not sure but becareful what kind of grease get on them.
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