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#1 |
Registered User
![]() Join Date: Oct 2009
Location: Easley, SC
Posts: 130
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6 Lug disc brake using 88-98 spindles ?????
So i researched the tech articles and thought that I had followed them to a T, however I took the truck to get aligned today and with no shims in the top, its still 1.3 out. I used 73 C20 lower arms, stock uppers arms, 88 upper and lower ball joints and tie rod ends. Everything went together great, but you could see that the caster was way off when it went together but I thought that it would align out. Wrong. Any suggestions on what I did wrong?
Has anyone else ran into this? any help would be great, thanks |
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#2 |
Registered User
Join Date: Jun 2011
Location: Richmond,Va
Posts: 2,934
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Re: 6 Lug disc brake using 88-98 spindles ?????
I have heard of the swap but haven't come in contact with one yet. There was another thread the other day where the guy had the same problem. His camber was 2.2. Looks like although its a physical bolt in it can't be done because of the positive camber. I don't know of a fix for it...yet.
__________________
Nick Carter 1967 C10 Short bed Fleetside Project Cheap Thrills! 2WD C10 Modern/Performance Alignments Easiest Alignment Ever! |
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#3 | |
Registered User
![]() Join Date: Oct 2009
Location: Easley, SC
Posts: 130
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Re: 6 Lug disc brake using 88-98 spindles ?????
Quote:
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#4 |
Registered User
Join Date: Oct 2008
Location: Marianna Arkansas
Posts: 7,270
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Re: 6 Lug disc brake using 88-98 spindles ?????
I am a little more than interested here. I have all the parts laying around my place from trucks I've junked and kinda been holding on to them for a 6 lug disc front change. I have two others that I have gone the other way and done 5 lug [both from 71-72trucks] and I do have the stuff to do a whole 73 up front cross member swap if need be but I liked the idea of the factory like 6 lug stuff. Without looking up the camber specs what is the range? -T- your out on both the caster and camber? Aren't the lowers different? I remember that the one I read called for 68 LCA's and that is what I have gotten for my swap. I know the Ball Joint hole is the same size[67-70/71-72/73-87] but I wonder if it is placing the joint in a different spot ? Someone wiser than I kick in here with some front end knowledge
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#5 |
Registered User
Join Date: Jun 2011
Location: Richmond,Va
Posts: 2,934
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Re: 6 Lug disc brake using 88-98 spindles ?????
The range is .8 to -.3 camber and 2.0 to 3.0 caster. He is really only about .5 degrees out but I have a big problem with positive camber.
__________________
Nick Carter 1967 C10 Short bed Fleetside Project Cheap Thrills! 2WD C10 Modern/Performance Alignments Easiest Alignment Ever! |
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#6 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,698
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Re: 6 Lug disc brake using 88-98 spindles ?????
Without narrowing the upper a-arm,... I don't know an answer.
YOU are the second member to confirm this problem. We need to get the word out to all that think this is a money saving disc swap. Install a 1/2-ton lower a-arm and spindle with an aftermarket C10 6-lug rotor,... and you will be back in business. Of course you will have to swap the ball joints and tie rods back.
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#7 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,698
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Re: 6 Lug disc brake using 88-98 spindles ?????
Makes the $229 63-70 conversion spindles look cheap.
Plus no one has ever confirmed that the 88-98 spindle geometry works with the 63-87 a-arm/steering combo. Let us know how it works out.
__________________
Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#8 |
Registered User
![]() Join Date: Oct 2009
Location: Easley, SC
Posts: 130
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Re: 6 Lug disc brake using 88-98 spindles ?????
Yes it does!! I'm so far into this with new everything that I'm going to do my best to figure it out. I have a simple idea but I need to test it first and check all the in ands out. Somewhere I have read that it was done with a successful alignment but of course can't find it now!! Might be worth a sticky to save some people some $$$$$. Just a thought
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#9 | |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,698
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Re: 6 Lug disc brake using 88-98 spindles ?????
Quote:
I don't like using "used" front end parts when I do this brake/suspension rebuild,... so the cost "savings" didn't add up to me. EVERYONE says they want a 6-lug rotor they purchase locally. But really,... how often do you replace rotors? With companies like RockAuto undercutting almost every parts store in town,... or companies like Summit Racing selling CPP 6-lug C10 rotors cheaper than anyone with FREE shipping. The "local rotor" issue is over.
__________________
Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#10 | |
Registered User
![]() Join Date: Oct 2009
Location: Easley, SC
Posts: 130
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Re: 6 Lug disc brake using 88-98 spindles ?????
Quote:
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#11 | |
Senior Member
![]() Join Date: Nov 2001
Location: Rapid City, SD
Posts: 2,281
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Re: 6 Lug disc brake using 88-98 spindles ?????
Quote:
Very good point!
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My Trucks: 1967 Chevrolet Short Wide Box 327 TH350 9" w/3.90 gears paint will be White - Current Project 1967 Chevrolet Custom LWB 283 TH400 3.73 Posi, no-AC, no-PS, no-PB, bench-seat, small-window - mostly orig driver 1967 Chevrolet CST LWB originally a 327 TH400 3.73 Posi AC PS PB, had Buddy Buckets, Small Window - parts truck 1967 Chevrolet CST LWB, 283 MT 3.73 had Buddy Buckets, Panoramic Window - parts truck 2001 Chevrolet 3500 2WD Crew Cab Dually 8.1L Allison White |
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#12 |
Registered User
![]() Join Date: Oct 2009
Location: Easley, SC
Posts: 130
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Re: 6 Lug disc brake using 88-98 spindles ?????
Hugger, not sure on the camber since he saw it wasn't going to work. The lowers should be the same 67-87 as for design. I'm going to measure tomorrow and report back
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#13 | |
Senior Member
![]() Join Date: Nov 2001
Location: Rapid City, SD
Posts: 2,281
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Re: 6 Lug disc brake using 88-98 spindles ?????
Quote:
Let us know what you find?
__________________
My Trucks: 1967 Chevrolet Short Wide Box 327 TH350 9" w/3.90 gears paint will be White - Current Project 1967 Chevrolet Custom LWB 283 TH400 3.73 Posi, no-AC, no-PS, no-PB, bench-seat, small-window - mostly orig driver 1967 Chevrolet CST LWB originally a 327 TH400 3.73 Posi AC PS PB, had Buddy Buckets, Small Window - parts truck 1967 Chevrolet CST LWB, 283 MT 3.73 had Buddy Buckets, Panoramic Window - parts truck 2001 Chevrolet 3500 2WD Crew Cab Dually 8.1L Allison White |
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#14 | |
Registered User
![]() Join Date: Oct 2009
Location: Easley, SC
Posts: 130
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Re: 6 Lug disc brake using 88-98 spindles ?????
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#15 |
Registered User
Join Date: May 2010
Location: Edmonton, Alberta
Posts: 3,848
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Re: 6 Lug disc brake using 88-98 spindles ?????
There was a burb on here with this swap, I'll see if I can find it.
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--------------------------------------------------------------- Jason. 68’ GMC shortbox https://67-72chevytrucks.com/vboard/...d.php?t=794201 72' 2WD Blazer http://67-72chevytrucks.com/vboard/s...d.php?t=425385 67' LongBox C-10 http://67-72chevytrucks.com/vboard/s...d.php?t=691845 InstaGram ybnorml67 |
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#16 |
Registered User
Join Date: May 2010
Location: Edmonton, Alberta
Posts: 3,848
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Re: 6 Lug disc brake using 88-98 spindles ?????
I found the truck I was thinking of, but it was just a rotor swap. Anyways it's on the first page of this thread. Post 17 I believe.
http://67-72chevytrucks.com/vboard/s...d.php?t=431073
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--------------------------------------------------------------- Jason. 68’ GMC shortbox https://67-72chevytrucks.com/vboard/...d.php?t=794201 72' 2WD Blazer http://67-72chevytrucks.com/vboard/s...d.php?t=425385 67' LongBox C-10 http://67-72chevytrucks.com/vboard/s...d.php?t=691845 InstaGram ybnorml67 |
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#17 | |
Registered User
![]() Join Date: Oct 2009
Location: Easley, SC
Posts: 130
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Re: 6 Lug disc brake using 88-98 spindles ?????
Quote:
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#18 |
Registered User
Join Date: Jun 2011
Location: Richmond,Va
Posts: 2,934
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Re: 6 Lug disc brake using 88-98 spindles ?????
I think if you machined an 1/8" off the upper arm cross shaft surface that would buy you .5 but an 1/8" seems like a lot to me to take off. Just throwing ideas out there. You'd probably have to clearance the backside of the upper arm so it doesn't contact the frame too.
__________________
Nick Carter 1967 C10 Short bed Fleetside Project Cheap Thrills! 2WD C10 Modern/Performance Alignments Easiest Alignment Ever! |
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