The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Suspension

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 03-14-2015, 12:22 AM   #1
Willtc666
Registered User
 
Join Date: Mar 2015
Location: Winston-Salem
Posts: 6
68-72 C10 A arm question

Hey my name is Will, New to the forum and c10s. I got a 72 long bed.
i will be bagging it. Plans are Short bed,Zing,Notching etc etc. but the question is when aired out, is front negative camber a natural thing with stock A arms. Or only with after market arms. or is it custom?
Willtc666 is offline   Reply With Quote
Old 03-14-2015, 08:26 AM   #2
PGSigns
Senior Member
 
PGSigns's Avatar
 
Join Date: Jan 2011
Location: Hayes Va
Posts: 4,569
Re: 68-72 C10 A arm question

Aired out the upper control arm gets to a pretty extreme angle. As it rotates it pulls the top of the spindle in. This will happen with all the a arms using the stock geometry. It can be minimised some with setups like a drop member that raise the entire set up into the chassis but not gotten rid of.
Jimmy
__________________
60 to 66 Chevy and GMC window decals
http://67-72chevytrucks.com/vboard/s...d.php?t=661131
Good friends, good food and a hotrod what else do you need?
1966 BBW long fleet Daily driver
1965 BBW short fleet Sold and going to a good home
1965 Suburban
2003 3500 Duramax
2005 Ultra Classic
PGSigns is offline   Reply With Quote
Old 03-14-2015, 02:04 PM   #3
tinydb84
Registered User
 
tinydb84's Avatar
 
Join Date: Jul 2009
Location: San Jose Ca
Posts: 2,871
Re: 68-72 C10 A arm question

The camber gain is supposed to be there to help traction in turns.

You can eliminate some of it by shortening the lower control arm a bit. You could also lengthen your upper control arms but that would require raising the upper mount. Unless you know a lot about suspension I wouldn't recommend it.

Rear the make it handle tread as a good start.
__________________
David
Used parts build: http://67-72chevytrucks.com/vboard/s...d.php?t=638991
My brother's Nova: http://www.67-72chevytrucks.com/vboa...d.php?t=727985
Rear suspension rework: http://www.67-72chevytrucks.com/vboa...d.php?t=750557
Instagram: myfabguy
tinydb84 is offline   Reply With Quote
Old 03-14-2015, 04:05 PM   #4
Willtc666
Registered User
 
Join Date: Mar 2015
Location: Winston-Salem
Posts: 6
Re: 68-72 C10 A arm question

Awesome! Thanks for the information guys. So what are the benefits of tubular arms? And also if I were to cup the factory arms, will the truck go lower because more bag room.. Or will the LCA hit the crossmember and so "Zing" comes into play which also raises the engine.. Which brings me to another question. What do people about the transmission mount and trasnmission pionion angle? Do people tunnel the cab so the pionion angle is corrected?
Willtc666 is offline   Reply With Quote
Old 03-14-2015, 04:09 PM   #5
tinydb84
Registered User
 
tinydb84's Avatar
 
Join Date: Jul 2009
Location: San Jose Ca
Posts: 2,871
Re: 68-72 C10 A arm question

Start here:

http://www.google.com/custom?q=z%27i...A&start=0&sa=N
__________________
David
Used parts build: http://67-72chevytrucks.com/vboard/s...d.php?t=638991
My brother's Nova: http://www.67-72chevytrucks.com/vboa...d.php?t=727985
Rear suspension rework: http://www.67-72chevytrucks.com/vboa...d.php?t=750557
Instagram: myfabguy
tinydb84 is offline   Reply With Quote
Old 03-15-2015, 01:45 AM   #6
Willtc666
Registered User
 
Join Date: Mar 2015
Location: Winston-Salem
Posts: 6
Re: 68-72 C10 A arm question

Quote:
Originally Posted by tinydb84 View Post
Yea not very helpful 😑
Willtc666 is offline   Reply With Quote
Old 03-15-2015, 01:53 AM   #7
tinydb84
Registered User
 
tinydb84's Avatar
 
Join Date: Jul 2009
Location: San Jose Ca
Posts: 2,871
Re: 68-72 C10 A arm question

Every answer you wanted is there. If you don't want to look then good luck.
__________________
David
Used parts build: http://67-72chevytrucks.com/vboard/s...d.php?t=638991
My brother's Nova: http://www.67-72chevytrucks.com/vboa...d.php?t=727985
Rear suspension rework: http://www.67-72chevytrucks.com/vboa...d.php?t=750557
Instagram: myfabguy
tinydb84 is offline   Reply With Quote
Old 03-15-2015, 04:14 AM   #8
Willtc666
Registered User
 
Join Date: Mar 2015
Location: Winston-Salem
Posts: 6
Re: 68-72 C10 A arm question

Quote:
Originally Posted by tinydb84 View Post
Every answer you wanted is there. If you don't want to look then good luck.
Sorry but none of those links had anything I was looking for. Lots of dead end of threads. So prove me wrong and find the answer. What do people do to correct the transmission pionion angle with a "z" frame.. Or do people use the factory transmisson cross member and just match the axle pionion angle on the transmission pionion? Or does it even matter since its a 2 piece drivetrain.. Ya tell me google master
Willtc666 is offline   Reply With Quote
Old 03-15-2015, 04:20 AM   #9
tinydb84
Registered User
 
tinydb84's Avatar
 
Join Date: Jul 2009
Location: San Jose Ca
Posts: 2,871
Re: 68-72 C10 A arm question

So many bad attitudes.

Raise the trans crossmember an equal amount.

Yes the pinion angle matters.

Raise the carrier bearing so that it is centered if you ran a straight line from the trans to the rearend.
__________________
David
Used parts build: http://67-72chevytrucks.com/vboard/s...d.php?t=638991
My brother's Nova: http://www.67-72chevytrucks.com/vboa...d.php?t=727985
Rear suspension rework: http://www.67-72chevytrucks.com/vboa...d.php?t=750557
Instagram: myfabguy
tinydb84 is offline   Reply With Quote
Old 03-15-2015, 02:16 PM   #10
Willtc666
Registered User
 
Join Date: Mar 2015
Location: Winston-Salem
Posts: 6
Re: 68-72 C10 A arm question

Quote:
Originally Posted by tinydb84 View Post
So many bad attitudes.

Raise the trans crossmember an equal amount.

Yes the pinion angle matters.

Raise the carrier bearing so that it is centered if you ran a straight line from the trans to the rearend.
Haha so why couldn't you just said that in the first place? But Thanks for the info..but still doesn't answer the question.. I'm still looking for the correct pinion degree
Willtc666 is offline   Reply With Quote
Old 03-15-2015, 02:48 PM   #11
SCOTI
Registered User
 
SCOTI's Avatar
 
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,919
Re: 68-72 C10 A arm question

Quote:
Originally Posted by Willtc666 View Post
Haha so why couldn't you just said that in the first place? But Thanks for the info..but still doesn't answer the question.. I'm still looking for the correct pinion degree
Most sbc drivetrains are usually @ 3° from GM. Measure your set-up & see if it's the same.
__________________
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
Old 03-15-2015, 04:05 PM   #12
Willtc666
Registered User
 
Join Date: Mar 2015
Location: Winston-Salem
Posts: 6
Re: 68-72 C10 A arm question

Also iv been calling it the pionion but hopefully everyone knew what I ment. I ment yoke angle haha my bad
Willtc666 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 05:11 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com