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Old 07-29-2020, 10:21 AM   #1
SCOTI
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Re: Help lowering an '83 C30 Crew Dually

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Originally Posted by Big Chip View Post
You'll get no arguments from me on the strength of the common notch. This looked better to me than most of them I see was my only point I guess. It took me a long time to wrap my head around cutting the frame at all and I really didn't want to do a notch like yours because I didn't want to have that much work into it at this time. That may change in the future but I'm not ready for that step yet.

Also, not to derail the thread but what specs are you guys using for your front end alignments? I had mine done and it isn't right but I made an appointment at the shop I usually use and didn't know if there is some guidance I can give them on it.
Mine is not static. I remember it was -.5 Camber, 6.9°/7.4° Caster. Not 100% sure on the Toe but I recall it was 1/16 in each side.
With a stock set-up, you'll want as much Caster as possible for them to dial in w/zero to .5 NEG Camber (stock is POS Camber). Toe is fine @ stock specs.
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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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Old 07-29-2020, 11:45 AM   #2
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Re: Help lowering an '83 C30 Crew Dually

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Originally Posted by SCOTI View Post
Mine is not static. I remember it was -.5 Camber, 6.9°/7.4° Caster. Not 100% sure on the Toe but I recall it was 1/16 in each side.
With a stock set-up, you'll want as much Caster as possible for them to dial in w/zero to .5 NEG Camber (stock is POS Camber). Toe is fine @ stock specs.
Thank you!
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Old 07-29-2020, 12:15 PM   #3
SCOTI
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Re: Help lowering an '83 C30 Crew Dually

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Originally Posted by Big Chip View Post
Thank you!
No prob. A good alignment guy should understand you're truck isn't 'stock' & be ok w/you using non-stock specs. If they balk, find one that understands modified vehicles.
__________________
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.
SCOTI is offline   Reply With Quote
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