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diagram for modifying spindles for LS1 brakes?

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Old Aug 19, 2008 | 04:10 PM
  #1  
BlueZee28's Avatar
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From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
diagram for modifying spindles for LS1 brakes?

Anyone have a diagram for how to do this? Measurements?

Also, does anyone have some good close up pictures of how the brackets from Ed Miller mount up? I just got them in the mail but there's no instructions so I'm kinda lost lol
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Old Aug 20, 2008 | 02:35 AM
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Car: 1986 z28 & 1992 z28
Engine: 305 TPI
Transmission: 700-R4
Re: diagram for modifying spindles for LS1 brakes?

This is the diagram that I have saved on my computer. After staring at it for a while I decided to just send my spindles to Ed because I didn't want to ruin them. Also, here is a website I had saved showing how to modify the spindles:

http://www.ws6transam.org/1LEbrake.html
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Old Aug 20, 2008 | 06:46 AM
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Re: diagram for modifying spindles for LS1 brakes?

Spohn sells (or used to sell) a CD detailing the mod, which is straightforward and can be done with basic hand tools and a little care.

JamesC
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Old Aug 20, 2008 | 07:39 PM
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From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
Re: diagram for modifying spindles for LS1 brakes?

Originally Posted by BlueZee28
Anyone have a diagram for how to do this? Measurements?

Also, does anyone have some good close up pictures of how the brackets from Ed Miller mount up? I just got them in the mail but there's no instructions so I'm kinda lost lol
I sent you the pic last night...did you get my e-mail? If not, here ya go. It's on page 3 of the install guide. I know it's not the exact spindle we have but I'm sure you get the idea:

http://www.wilwood.com/PDF/ds480.pdf

Ed
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Old Aug 20, 2008 | 10:05 PM
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From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: diagram for modifying spindles for LS1 brakes?

Originally Posted by ebmiller88
I sent you the pic last night...did you get my e-mail? If not, here ya go. It's on page 3 of the install guide. I know it's not the exact spindle we have but I'm sure you get the idea:

http://www.wilwood.com/PDF/ds480.pdf

Ed
Sorry I made this thread right before I had the brilliant idea of calling you, and then I never checked my email last night. I'm sure it's in my email now I just haven't had time to check it. Thanks a whole bunch Ed
----------
Oh one other question I did have...do you absolutely have to use the spacer washers in between the spindle and the brackets? And also, the diagram doesn't show a nut being used on the bolts that mount the bracket to the spindle. Is there no nut used?

Last edited by BlueZee28; Aug 20, 2008 at 10:08 PM. Reason: Automerged Doublepost
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Old Aug 21, 2008 | 07:14 AM
  #6  
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From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
Re: diagram for modifying spindles for LS1 brakes?

Originally Posted by BlueZee28
Oh one other question I did have...do you absolutely have to use the spacer washers in between the spindle and the brackets? And also, the diagram doesn't show a nut being used on the bolts that mount the bracket to the spindle. Is there no nut used?
I figured we overlapped timing on our discussion.

You must use the spacer washers to properly locate the caliper abutment over the rotor. They won't give you any problems but be sure to use threadlocker on the abutment bolts to keep them from loosening.

The spindle is tapped to the bolts thread into it and use no nuts. Use threadlocker on these as well. I recommend red on the spindle bolts and blue on the abutment bolts.

Ed
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Old Aug 23, 2008 | 12:11 PM
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Re: diagram for modifying spindles for LS1 brakes?

PM sent.
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Old Aug 23, 2008 | 05:21 PM
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From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: diagram for modifying spindles for LS1 brakes?

Originally Posted by BADMAN
PM sent.
Me? I haven't gotten one.



Well I got the spindles modified and filed down last night, tomorrow I'm going to drill out the holes for the brackets and tap them with a 7/16"-14 thread and then I'll be ready to rock and roll. I think I've about got all my parts gathered except for new codder pins for the tie rods and the washers for behind the custom brackets. Other than that, I've got everything I need to hopefully get it finished (or at least 99% finished tomorrow).
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Old Aug 26, 2008 | 06:14 PM
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From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: diagram for modifying spindles for LS1 brakes?

Thanks a lot for the help. I actually finished the swap late last night and took it for a drive around my neighborhood and it seems to be working great. I didn't hear any wierd noises which is a good thing, and it brakes nice and smooth. They look good too. Now my rear rotors aren't bigger than my fronts! (I have LS1 brakes on the back of the car too lol)
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Old Oct 15, 2008 | 06:05 PM
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Re: diagram for modifying spindles for LS1 brakes?

did you end up using washers behind bracket Nick?
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