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Lowering a C5

  • Thread starter Thread starter jorge33265
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jorge33265

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Im planning on lowering my car tommorow. I have all the instructions but i was told to buy 2 grade8 bolts 1/2 inch by 7 with locking nuts. This is needed if you want to lower your car more than with the stock screw adjustment. I was only able to find 6 inch screws. Will that work? or is it the same size as stock the screw? thanks
 
I lowered my vette with grade 8 bolts but only found the 6.5 length. The stock do not have threading all the way to the top. With the new 6.5 I had about 10 threads exposed after I dropped it on both sides.

You can use the 6 in bolts because there is more threading then the stock ones. As far as how many thread should be exposed thats your call. Good luck its the easiest mod to do.

Cheers!!
 
You C5 guys are lucky when it comes to lowering these cars. Try doing the front on a C4:) It should give you enough headaches where you'd want to get a C5 anyway:D

Jay
 
Thanks for the info. With the 6.5s how low did you go? I just want to cover the gap. Did you have any tread left after adjusting with the 6.5's also did you get it at a national store like Ace hardware or Home depot? Did you cut the front bushings?
 
I had trouble getting the bolts from the big stores (" Home Depot", Lowes and Ace").

Instead of driving around I just called and asked over the phone. None of those department stores carried the bolt size, the longest size was 6".

I found it at a small mom and pop store, they had every size you can imagine.

I got the 6.5 size and I still had 10 threads exposed. I get about 2 fingers between the tire and fender. What I did was to measure, I take the current exposed thread from what you have in the car and then I know how much more i have to have showing.

Make sure you get the washers, I forgot to put one of the washers on one side and the damn bolt went into the bushing. It was not fun taking it out, no harm done though.

I lower the front the most I could without cutting, the front bushing looks awesome. If you go lower make sure you get frame savers from A&A, I need to buy some anyways, because my vette is an everyday driver.

Cheers!! Let me know if you have more questions.
 
Make sure if you lower the car by more than the factory bolts that you get an alignment.
 
Heres my buddys car!we lowerd his and mine. was'nt hard at all! probebly easier then you think.

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Mine.........
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Hi
I'm interested by this mod.
Could you tell my how to proceed on a 01.
Thanks
 
PIPO said:
Hi
I'm interested by this mod.
Could you tell my how to proceed on a 01.
Thanks
Aloha! I guess that the question was aimed at me!? Sorry to anybody for the misunderstanding if it was'nt aimed at me. O.K, to answer your question, first of all, how low do you want to go? is the most important question, you see, on the C-5, it has a true adjustable suspention, so if you want to go only as low as the adjustable suspention will let you go, just jack the car up, take the tires off, look in the arm section behind the bottom part of the shocks, at the fiberglass leaf spring where it sit's in the a-arm, you'll see a bolt/nut like thing in the middle of the leaf sprinf that sits in the bottom of the a-arm, just un-screw the bolt all the way out, dont worry, it can't come out all the way, it'll stop at a curtain point, put the tires back on do the other side of course, and drive a few feet to let it settle down to it's rideing height, now if your looking at slamming the car all the way down like what you see in the pictures that I posted this is how you do it,........Jack the front of the car up HIGH!! at the right places, and support it on jack stands, now, unbolt the "sway bar", un bolt the shocks from underneath, disconnect the abs sensor (If you have one) and be very careful doing so, get a floor jack, and jack the a-arm up a little and set a stack of blocks under the wheel rotor then let the jack down, with another block of wood, set the jack under the leaf spring on the bottom of the car, now, when you set the the jack with the wood on top of it under the leaf spring, make sure that the wood is as close to the bottom of the a-arm with out resting on it, you'll just want the wood and jack on the leaf spring, now jack the jack up just a little to take a small bit of pressure off the a-arm, back the nut out a little on the a-arm ball joint untill it's flush with the bolt that it's on, with a ruber mallet of a block of wood and a hammer, strike the top end of the nut & bolt, after a few strikes, it'll break free, (note)- this is to be done only if you dont have a ball joint seperater. Once thats free, jack the leaf spring up more untill the presure on the a-arm is gone, take the ball joint nut all the way off now, and the lower a-arm it'll be free floating, you should be able to push it down to the ground, now you'll have free access to the bolt thats on the leaf spring, take off the retainer clip, and unscrew the bolt all the way out! do this on both sides. now un bolt the 2 spring retainer's thats under the car, they are 2 metal clamps, that have 2 bolts through them, which are bolted to the frame of the car which holds the leaf spring in place, take them completely off. Now go to either side and pull the spring out, just enough to where you can get a steak knife of hacksaw blade to the rubber bushing thats glued on to the spring, saw that piece completely off! (HELPFUL HINT----At the same time that your sawing the rubber bushing off, lift up on the rubber bushing, away from the spring, that way, the knife or blade will not get caught between the rubber and spring, if you dont do this, it'll take you hours instead of minutes to cut the piece off!!) Now put the every thing back together and your done!! You'll notice that the other side will be much faster once you've done the first side! It took me about an half hr to 45 min to do the first side and about 15 mins to do the other side!! I hope that I explained this clearly enough to you and that it helps you!! The rear end?! All you have to do is take the floor jack with the block of wood, jack up the leaf spring on the rear, unbolt the bolt thats on the end, put a longer one in it's place, (Grade 8) get about an 8 to 9 inch bolt to be safe! thats it! You'll have to do some adjustments to even the car out. Take it easy!!
 
Hi
It seems to be not so difficult. I think it will be easier to understand all the details when the car will be on jacks.
Thanks for your help and the detailed explaination.
Thanks Merci
Regards Au revoir
 
Did you have to cut the front bushings to make the car low enough? I want about 1 or 2 fingers to fit between the tire.. As for the rear are you sure its an 8 or 9 inch bolt? I thought it was suppost to be 7. I havent done it yet and am having a hard time getting the 7 inch bolts. 8 inch I can get.. Let me know if the 8ts will work. Thanks Also if I use the 8 will I need to put alot of washers to compensate?
 
jorge33265 said:
Did you have to cut the front bushings to make the car low enough? I want about 1 or 2 fingers to fit between the tire.. As for the rear are you sure its an 8 or 9 inch bolt? I thought it was suppost to be 7. I havent done it yet and am having a hard time getting the 7 inch bolts. 8 inch I can get.. Let me know if the 8ts will work. Thanks Also if I use the 8 will I need to put alot of washers to compensate?
Oh yeah! sure you can use the 8 inch bolt, and like you said, get a few grade 8 washers in case you dont like the height, or better yet, if you can, get a couple of bolts that the thread on them go up a ways, that way, you wont need to buy any washers, all you'd have to do is screw the nut up or down the bolt untill you get the result that your looking for. be the way, yes trim the rubber bushing off, be all means, try not to scratch up the spring if you can though O.K? and it sounds like you want it slammed, so take out the adjusable bushing that set's in the leaf spring for the lowest setting that the car can go!
 
PIPO said:
Hi
It seems to be not so difficult. I think it will be easier to understand all the details when the car will be on jacks.
Thanks for your help and the detailed explaination.
Thanks Merci
Regards Au revoir
I forgot to also tell you that you'll have to remove the metal leaf spring holders/connecters that holds the leaf spring to the body of the car, so you'll have to jack the car up kind of high, but you dont have to take the spring all the way out, just enough to be able to either get a steak knife or hack saw blade to trim the rubber bushing of the spring, so do the following dissasembly steps that I had explained to you earlier, just do both sides so the spring will slide out enough to saw rubber bushing out. Helpful hint!!!!!!!......... Push up on the rubber piece, away from the spring at the same time your sawing the rubber piece off, that way it wont grab the blade and make it difficult to saw back and forth!! please remember this helpful hint! it'll make life so much easier!!!! This helpful hint also aplies to you Jorqe33256. Let me know how your projects come out!! Aloha! (I went a head and updated the instructions that I had wrote the other day so if you decide to copy this it'll have the full instructions for and you wont have to keep going back and forth.)
 
Im going to try it this weekend I'll post pictures if it comes out even.... he he ... I'll let you know how it went.
 
jorge33265 said:
Im going to try it this weekend I'll post pictures if it comes out even.... he he ... I'll let you know how it went.
I left you my number for if you run into trouble, you won't have to wait for a response to help you!
 
Thanks Da Hawaiian Punch, It was actually very easy... I'll attach a picture. Its not my car but its Identical Same exact drop... If you see my profile you can see how it looked before I dropped it.
 
I'm glad that I was finaly able to help somebody out!! That drop looks good on your friends car, so I guess that Im also saying that it looks good on yours also!!!! try to get some pictures up, maybe even use them as your signiture for this forum!! Aloha & Take care!!
 

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