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Drop Spindles?

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Old Dec 10, 2012 | 01:24 AM
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Default Drop Spindles?

Does anyone know anything about spindles ever coming for our C3s?
I'm sure they would be expensive, but it would solve several problems!
VB&P should be all over this. lol

R
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Old Dec 10, 2012 | 07:40 AM
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Folks usually only lower these an inch or so, with cutting a coil off a spring being free, and lowering springs being bout $40, and lowered spindles being bout $400 or more , if they were to make them. do you see any reason ?
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Old Dec 10, 2012 | 07:45 AM
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Originally Posted by oldalaskaman
Folks usually only lower these an inch or so, with cutting a coil off a spring being free, and lowering springs being bout $40, and lowered spindles being bout $400 or more , if they were to make them. do you see any reason ?
you ever do anything with your rear spring yet?
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Old Dec 10, 2012 | 08:03 AM
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I was lucky enough that the previous owner buggered that up, just had to redo his mess

Last edited by oldalaskaman; Dec 10, 2012 at 08:11 AM. Reason: fixed it
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Old Dec 10, 2012 | 08:48 AM
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As stated above cutting a spring on these cars is usually all that's needed to lower the ride height. Dropped spindles have there purpose but they can also add some new issues like tire clearence. The position of the wheel/tire changes which can cause suspension interference on the back side of the wheel. That becomes a concern when trying fit the widest tire/wheel combination possible inside the fender because it limits the wheel backspace.
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Old Dec 10, 2012 | 04:24 PM
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From: Graceland in a Not Correctly Restored Stingray
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How low are you trying to go, and why?

If for improving RR/AX type performance, setting up your front Z height (see illustration) at 1" to 1.25" can be easily accomplished by cutting your coils. Do so from the bottom, properly reseating the top in the frame pocket. Given that our front wheel rates are typically ~1/2 of our front spring rates, best to cut no more than ~1/2 of the coils' loaded height relative to the amount you wish to lower to avoid cutting off too much. I'd rather waste an extra mock up or two than ruin a coil.

If slamming for appearances only, unless the desired height would put your Z at somewhat less than above, you really don't need dropped spindles anyway. That said, front geometry starts going to hell in a hurry if you go very much lower than the above Z height. In the event that the amount you're lowering dictates that you simply must have them, despite issues already mentioned in post #5, I might be able to hook you up.


Last edited by TheSkunkWorks; Dec 10, 2012 at 04:28 PM.
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Old Dec 10, 2012 | 10:04 PM
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Thanks for all the info.

R
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Old Dec 11, 2012 | 07:55 PM
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Originally Posted by TheSkunkWorks
How low are you trying to go, and why?

If for improving RR/AX type performance, setting up your front Z height (see illustration) at 1" to 1.25" can be easily accomplished by cutting your coils. Do so from the bottom, properly reseating the top in the frame pocket. Given that our front wheel rates are typically ~1/2 of our front spring rates, best to cut no more than ~1/2 of the coils' loaded height relative to the amount you wish to lower to avoid cutting off too much. I'd rather waste an extra mock up or two than ruin a coil.

If slamming for appearances only, unless the desired height would put your Z at somewhat less than above, you really don't need dropped spindles anyway. That said, front geometry starts going to hell in a hurry if you go very much lower than the above Z height. In the event that the amount you're lowering dictates that you simply must have them, despite issues already mentioned in post #5, I might be able to hook you up.
I was looking for a previous thread where a member had cut front springs from both sides and you discussed the impact of cutting different coil on the compression. For the life of me I can't find the thread but someone had cut both ends of the spring. Care to re-elaborate? My plan is to put coil-overs on the rear which can drop the back as much as 2". With a lighter LSx in front I'm worried it will float the front end.

Last edited by myko; Dec 12, 2012 at 10:14 PM.
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Old Dec 11, 2012 | 08:43 PM
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TRZ Motorsports makes drop spindles and I think Classic Performance Parts does too. I have TRZ on my '74. Really nice parts - not direct bolt ons with stock brakes, wheel bearings, steering arms, etc. Ended up being a time consuming and costly conversion.

I think CPP sells all the parts to make it all fit back together, but costly.
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Old Dec 12, 2012 | 04:40 PM
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From: Graceland in a Not Correctly Restored Stingray
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Well, it wasn't me who cut the coils from both ends. My advice to cut them "from the bottom" came from Dick Guldstrand some thirty years ago, and has always worked for me.

As for the front end "floating", weight distribution isn't the primary concern, rather aero lift. First, I'd avoid lowering the rear so much that the frame ends up higher in front (measured fore and aft along the rockers...). In any event, if you're going to do very much high-speed running IMCO you really need a front air dam and rear spoiler.
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Old Dec 12, 2012 | 06:27 PM
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I'd like to learn more about these TRZ Motorsports 1.5" dropped spindles.

http://trzmotorsports.com/wordpress/...ck-type-brakes
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Old Dec 12, 2012 | 10:20 PM
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Originally Posted by TheSkunkWorks
Well, it wasn't me who cut the coils from both ends. My advice to cut them "from the bottom" came from Dick Guldstrand some thirty years ago, and has always worked for me.

As for the front end "floating", weight distribution isn't the primary concern, rather aero lift. First, I'd avoid lowering the rear so much that the frame ends up higher in front (measured fore and aft along the rockers...). In any event, if you're going to do very much high-speed running IMCO you really need a front air dam and rear spoiler.
Sorry, I phrased that poorly - I fixed it. Somebody else had cut their springs and you talked about how cutting the first coil from each end affects compression vs. cutting two coils from the bottom.

How much drop would you suggest from cutting springs before going with drop spindles?
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Old Dec 12, 2012 | 10:43 PM
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Originally Posted by TheSkunkWorks
Well, it wasn't me who cut the coils from both ends. My advice to cut them "from the bottom" came from Dick Guldstrand some thirty years ago, and has always worked for me.

As for the front end "floating", weight distribution isn't the primary concern, rather aero lift. First, I'd avoid lowering the rear so much that the frame ends up higher in front (measured fore and aft along the rockers...). In any event, if you're going to do very much high-speed running IMCO you really need a front air dam and rear spoiler.
Sorry, I phrased that poorly - I fixed it. Somebody else had cut their springs and you talked about how cutting the first coil from each end affects compression vs. cutting two coils from the bottom.

I doubt I am doing a lot of high speed running. I am more concerned about the ride and not having problems with suspension and steering geometry. You always have great answers on these subjects.

I have no interest in "slamming" my car but in the interest of the OPs question how much would you suggest cutting off the springs before going with drop spindles?
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Old Dec 13, 2012 | 01:59 PM
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From: Graceland in a Not Correctly Restored Stingray
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Originally Posted by myko
...I have no interest in "slamming" my car but in the interest of the OPs question how much would you suggest cutting off the springs before going with drop spindles?
Ideally, IMCO one should draw the line at ~1" Z height (at curb weight w/driver). Much lower than that and camber control in bump or dive will start getting increasingly out of hand.
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Old Dec 14, 2012 | 12:21 AM
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Rumor has it that 65-70 Impala spindles are the same as Corvette C3 Corvette....

Also, I've heard tell of using 1st gen Camaro spindles to do the same thing.
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Old Dec 17, 2012 | 08:31 PM
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Originally Posted by 97C5
I'd like to learn more about these TRZ Motorsports 1.5" dropped spindles.

http://trzmotorsports.com/wordpress/...ck-type-brakes
The TRZ spindles do not work with the stock Corvette rotors - the ad states Camaro brakes or drag brake (non-vented). You also need to change the wheel bearing to fit the spindle (I don't remember the part, but believe it was late '60s Chevy - possibly Camaro). I did a bunch of measuring to figure out the right rotor (I believe I ended up with a '78 Firebird aftermarket rotor). Also had to custom make plates to mount the calipers. I think CPP makes a package that includes everything, but it is pricey. I like how mine turned out (look and ride) but wouldn't recommend doing it unless you know what you're doing and know some old school Chevy guys!

Here is a picture of what mine looked like with 1 coil cut off the stock spring:

[IMG][/IMG]

And what it looks like with the drop spindles (front wheel are "rollers" not what I drive around with):

[IMG][/IMG]
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