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#1 |
Registered User
Join Date: Jun 2011
Location: Richmond,Va
Posts: 2,934
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Re: I Found the Magic Button!
Don't think too hard about it as long as your camber is negative and your camber is as positve as possible. Make both sides as equal as possible. If it keeps wandering rotate the tires until tire pull is minimized.
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Nick Carter 1967 C10 Short bed Fleetside Project Cheap Thrills! 2WD C10 Modern/Performance Alignments Easiest Alignment Ever! |
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#2 |
Registered User
Join Date: Feb 2012
Location: Ruskin Florida
Posts: 4,560
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Re: I Found the Magic Button!
Did you mean "Castor" is as positive as it can be?
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70 swb 4x4 406sbc 700r4 203/205 d60/14blt locker yadda yadda http://67-72chevytrucks.com/vboard/s...88#post6935688 Yeller 72 Blazer 2wd conversion project "No Daggum Money" http://67-72chevytrucks.com/vboard/s...d.php?t=550804 LS1-T56 3.73 LSD super budget build Blanco-2014 Sierra SWB https://67-72chevytrucks.com/vboard/...d.php?t=810350 |
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#3 |
Registered User
Join Date: Mar 2002
Location: Forney TX
Posts: 4,512
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Re: I Found the Magic Button!
Alrighty I’m going to see what I can do Tuesday.
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Troy 1965 Chevy Bagged,361 sbc,voodoo cam,1.5 full roller rockers,patriot 185cc vortec heads 2.02-1.60,vortec weiand polished intake,demon carb my truckhttp://67-72chevytrucks.com/vboard/s...d.php?t=332884 Big Red Dog build http://67-72chevytrucks.com/vboard/s...d.php?t=572274 |
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#4 |
Registered User
Join Date: Jun 2011
Location: Richmond,Va
Posts: 2,934
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Re: I Found the Magic Button!
Yeah. Caster needs to be as positive as possible.
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Nick Carter 1967 C10 Short bed Fleetside Project Cheap Thrills! 2WD C10 Modern/Performance Alignments Easiest Alignment Ever! |
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#5 |
Registered User
Join Date: Aug 2005
Location: DFW
Posts: 268
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Re: I Found the Magic Button!
I just completed a steering rebuild (rag joint, pitman, idler, ball joints, tie rods, upper and lower control arms, Red Head quick ratio box, pump, wheel bearings and tires) and had the truck aligned. i now have a lazy return to center and while driving straight it seems kind of twitchy. I have a lot of caster so i dont understand the lazy return to center. Is the toe supposed to be toe in or out?
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1970 Custom Original 400/400 Now ZZ454/4L80E/Edelbrock Pro-Flo 4/3:73 Eaton Posi PS PB and cold factory air Early Classic 4.5/6 Front 20X8.5 Riddler 4.75 inch bs Pirelli 255/40/20 Rear 20X10 Riddler 5.5 inch bs Toyo 295/40/40 Rear end is original wide 6 lug converted to 5 lug |
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#6 |
Registered User
Join Date: Aug 2005
Location: DFW
Posts: 268
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Re: I Found the Magic Button!
..
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1970 Custom Original 400/400 Now ZZ454/4L80E/Edelbrock Pro-Flo 4/3:73 Eaton Posi PS PB and cold factory air Early Classic 4.5/6 Front 20X8.5 Riddler 4.75 inch bs Pirelli 255/40/20 Rear 20X10 Riddler 5.5 inch bs Toyo 295/40/40 Rear end is original wide 6 lug converted to 5 lug |
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#7 |
Registered User
Join Date: Jun 2011
Location: Richmond,Va
Posts: 2,934
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Re: I Found the Magic Button!
Going down the sheet in order, I would like to see a bit more camber. -.25° would make me happier but if you can't get there you can't get there. I question the frame angle. If its really 2° thats fine but if its closer to 0 (mine was 0) then your caster angle numbers are going to be off by the sum off the difference. Since its front steer it needs toe out. I would rather see 1/8" total (1/16 per side).
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Nick Carter 1967 C10 Short bed Fleetside Project Cheap Thrills! 2WD C10 Modern/Performance Alignments Easiest Alignment Ever! |
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#8 |
Registered User
Join Date: Jun 2011
Location: Richmond,Va
Posts: 2,934
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Re: I Found the Magic Button!
I think I need to expand on that a bit more. Your toe and camber angles are a bit on the neutral side which would cause those angles to flip back and forth between positve and negative. You've gotta push them a tick more to make them stay in the range they need to be in. Confirm that frame angle was actually measured and not guessed at to confirm caster.
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Nick Carter 1967 C10 Short bed Fleetside Project Cheap Thrills! 2WD C10 Modern/Performance Alignments Easiest Alignment Ever! |
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#9 | |
Registered User
Join Date: Aug 2005
Location: DFW
Posts: 268
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Re: I Found the Magic Button!
Quote:
Just so i understand, if the caster is 5.9 and the frame angle is 2 then my actual caster us 3.9? I need .5 more camber (top of tire in / \) and 1/32 more toe on each side (front of tire out \ /) and as much caster as possible?
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1970 Custom Original 400/400 Now ZZ454/4L80E/Edelbrock Pro-Flo 4/3:73 Eaton Posi PS PB and cold factory air Early Classic 4.5/6 Front 20X8.5 Riddler 4.75 inch bs Pirelli 255/40/20 Rear 20X10 Riddler 5.5 inch bs Toyo 295/40/40 Rear end is original wide 6 lug converted to 5 lug |
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#10 | |
Who Changed This?
![]() Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,404
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Re: I Found the Magic Button!
Quote:
As for the lazy return, how is steering force when you turn the wheel away from center? Could just be the box sector lash adjustment is too tight.
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~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA Last edited by Steeveedee; 02-20-2019 at 03:25 PM. |
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#11 |
Registered User
Join Date: Jun 2011
Location: Richmond,Va
Posts: 2,934
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Re: I Found the Magic Button!
Its more about front vs. rear steer (in relation to the front cross member) but for the sake of packaging you can assume most FWD will be rear steer therefore requiring toe in. Its all about keeping the steering linkage taut.
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Nick Carter 1967 C10 Short bed Fleetside Project Cheap Thrills! 2WD C10 Modern/Performance Alignments Easiest Alignment Ever! |
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#12 |
Registered User
Join Date: Aug 2005
Location: DFW
Posts: 268
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Re: I Found the Magic Button!
Steering force away from center is not hard at all but it does have a new Red Head quick ratio box that makes it a little stiffer. Not stiff but not pinky steer as it was before. I cant change the box for as the paperwork clearly says it is adjusted perfectly and it will void my warranty.
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1970 Custom Original 400/400 Now ZZ454/4L80E/Edelbrock Pro-Flo 4/3:73 Eaton Posi PS PB and cold factory air Early Classic 4.5/6 Front 20X8.5 Riddler 4.75 inch bs Pirelli 255/40/20 Rear 20X10 Riddler 5.5 inch bs Toyo 295/40/40 Rear end is original wide 6 lug converted to 5 lug |
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#13 | |
Who Changed This?
![]() Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,404
|
Re: I Found the Magic Button!
Quote:
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~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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#14 | |
Senior Member
![]() Join Date: Sep 2014
Location: Wenatchee, Wa
Posts: 910
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Re: I Found the Magic Button!
Quote:
The first shop wouldn't/didn't give me numbers. The only thing I see is 1 1/8" shim on the pass side and a 1/16" shim on the driver side. |
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#15 |
Registered User
Join Date: Jun 2011
Location: Richmond,Va
Posts: 2,934
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Re: I Found the Magic Button!
I would verify frame angle or at least ask the guy that aligned it. Your math is correct...sorta. If your frame angle is 0 and they plugged in 2* the printout would say 5.9* when its actually 3.9*.
-.5 camber is good (tops of the ties pointing in). 1/16 toe per side (1/8" total) for toe.
__________________
Nick Carter 1967 C10 Short bed Fleetside Project Cheap Thrills! 2WD C10 Modern/Performance Alignments Easiest Alignment Ever! |
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#16 |
Senior Member
![]() Join Date: Mar 2011
Location: Hanover NJ
Posts: 4,161
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Re: I Found the Magic Button!
funny I had my tires mounted and balanced yesterday at the shop i will have do my alignment at some point I discussed doing the alignment one of the mechanics there is ready to retire he and I went to the same school he is old school but is up to date with the newer technology this is going to be very helpful for me thanks so much for the info i gotta try to get it all together before he heads south
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#17 |
Registered User
Join Date: Aug 2005
Location: DFW
Posts: 268
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Re: I Found the Magic Button!
Any update MySons
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1970 Custom Original 400/400 Now ZZ454/4L80E/Edelbrock Pro-Flo 4/3:73 Eaton Posi PS PB and cold factory air Early Classic 4.5/6 Front 20X8.5 Riddler 4.75 inch bs Pirelli 255/40/20 Rear 20X10 Riddler 5.5 inch bs Toyo 295/40/40 Rear end is original wide 6 lug converted to 5 lug |
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#18 |
Senior Member
![]() Join Date: Sep 2014
Location: Wenatchee, Wa
Posts: 910
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Re: I Found the Magic Button!
The new alignment didn't change anything.....it still won't return and the alignment shop tech said its in the box. I need to pull the pitman arm and see if there is a bind in the ball joints or?
Sorry for the late reply and Happy New Year! |
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#19 |
Registered User
Join Date: Mar 2019
Location: Pearcy AR.
Posts: 62
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Re: I Found the Magic Button!
If it were mine I would bust the outer tierod off the spindles and feel the ball joints for any stiffness or catches, kinda like checking u joints. Not saying anyone messed up but a ball joint can be ruined while pressing it in, especially the lower. Happy new year
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