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#1 |
Post Whore
![]() Join Date: Feb 2016
Location: Portland Oregon
Posts: 11,616
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Re: My caster mod (with pictures)
Got a short window on the alignment rack this afternoon so I got a set of initial readings. This is with the shim sets that the PO had installed and I just reused as a base line. My first impression was "Yikes I went too far!". I may have to pull the lower arms and mill a third location if I can't remove some of the caster!!!
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__________________
Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. ![]() RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
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#2 |
Post Whore
![]() Join Date: Feb 2016
Location: Portland Oregon
Posts: 11,616
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Re: My caster mod (with pictures)
After going through it all this is what I came up with. The Burban is bagged so to get the camber where it is I did go with a one inch higher ride height. The biggest driver of this was to reduce the number of shims so now I have full thread contact on the upper control arm bolts. I will drive it this way for a while and see what I decide what to change next.
__________________
Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. ![]() RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
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#3 |
Registered User
Join Date: Sep 2020
Location: portland oregon
Posts: 184
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Re: My caster mod (with pictures)
Thanks everyone for all these reply's and the great write up. I am starting my 67 drop and want to keep my stock spindles due to a disc conversion and this will be great. Does anyone know what the aliening specs are to be after this mod?
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#4 | |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,133
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Re: My caster mod (with pictures)
Quote:
OE called for Zero to POS .5 Camber. I target NEG .5 Camber. For caster, I request as much as possible w/o impacting my Camber target. These C10's didn't have much Caster to begin with. If you can get 5° that's pretty decent (I was able to yield 6.9/7.4 for reference). Toe was pretty close to OE. The larger/wider the foot-print, there might be need to adjust to account for the increased contact patch.
__________________
67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#5 | |
Registered User
Join Date: Sep 2020
Location: portland oregon
Posts: 184
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Re: My caster mod (with pictures)
Quote:
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#6 |
Post Whore
![]() Join Date: Feb 2016
Location: Portland Oregon
Posts: 11,616
|
Re: My caster mod (with pictures)
I posted my alignment specifications on post 214.
__________________
Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. ![]() RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
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#7 |
Registered User
Join Date: Aug 2017
Location: MS Gulf Coast
Posts: 13
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Re: My caster mod (with pictures)
I know this is an old thread but I did this mod to my 67 and I have severe tire scrub when I turn, is it normal ?
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#8 | |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,133
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Re: My caster mod (with pictures)
Quote:
What are the final alignment specs?
__________________
67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#9 |
Registered User
Join Date: Aug 2017
Location: MS Gulf Coast
Posts: 13
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Re: My caster mod (with pictures)
Not sure on caster need to find a shop I trust. Set at home Toe is 1/8" camber is close to 0. Drives good just when I back out of a parking spot and turn the wheels hard one of them will scrub bad (as in tear up grass or leave a black mark) they have a different turning radius from each other ?
Last edited by 67LS3GMC; 04-15-2022 at 04:11 PM. |
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#10 | |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,133
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Re: My caster mod (with pictures)
Quote:
I have 6.9/7.4 on my dually. Going from reverse to forward there is a shift but once you're moving it's not an issue. Toe needs to be dialed in as well.
__________________
67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#11 | |
Post Whore
![]() Join Date: Feb 2016
Location: Portland Oregon
Posts: 11,616
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Re: My caster mod (with pictures)
Quote:
As previously recommended get thy truck to the alignment shop. Now it is possible to install the upper control arms on the wrong sides and to put the centerlink on backwards. I have no idea how much of the front suspension you worked on but these are easy things to check before going to the alignment shop and trust me they are much cheaper to rectify at home, rather than when your truck is up on the rack. Good luck and please share your findings.
__________________
Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. ![]() RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
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#12 |
Registered User
Join Date: Aug 2017
Location: MS Gulf Coast
Posts: 13
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Re: My caster mod (with pictures)
It was frame up build, all new components. 2" or 2-1/2 spindles (don't remember) 1" springs etc.
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#13 |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,133
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Re: My caster mod (with pictures)
Ahhh.... Definitely verify the a-arms are on the correct sides & the Center-Link isn't backwards. I bet you're ok on the Center-Link because there's typically tie-rod to x-member interference when that occurs.
__________________
67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#14 |
Registered User
Join Date: Sep 2020
Location: portland oregon
Posts: 184
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Re: My caster mod (with pictures)
how does one know if the upper control arms are backwards?
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#15 |
Senior Member
![]() ![]() ![]() Join Date: Jan 2018
Location: Hickory Flat, GA
Posts: 4,507
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Re: My caster mod (with pictures)
Yeah, don't be like me and try to get it aligned with the UCAs on backwards. It won't work well.
Fist picture shows them on backwards. See how there's more angle between the UCA and the top of the spindle? Second picture shows them on the correct side. Look at how the UCA and top of the spindle are sitting more parallel. You want to have the bump stop towards the rear of the truck.
__________________
Christian Carpenter 1963 C10 - Frankentruck 283, Muncie 3 speed with overdrive Overdrive wiring here1963-ish truck bed trailer - Half-Wit 1981 C10 - Penny 305, th350 --> Soon to be 350, Saginaw 4 speed 1995 Dodge Dakota Sport "I'll put it simple: if you're going hard enough left, you'll find yourself turning right." - Doc Hudson |
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#16 |
Registered User
Join Date: Sep 2020
Location: portland oregon
Posts: 184
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Re: My caster mod (with pictures)
Yes I see, the spindle is more in line with the front UCA mounting bolt too.
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#17 |
Registered User
Join Date: Aug 2017
Location: MS Gulf Coast
Posts: 13
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Re: My caster mod (with pictures)
Yes A-arms on correct side, as my helper double checked all my work on the truck.
http://www.67-72chevytrucks.com/vboa...1&d=1650127136 |
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