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 > All 4x4 Tech & Off Roading

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 08-21-2013, 10:34 AM   #26
obijuan
Registered User
 
Join Date: Jun 2012
Location: cibolo tx
Posts: 1,033
Re: Tuff country 4" lift. Pinion angles?

Those are brand new springs unweighted. They will settle some and when you put the rest of the truck on it. How much is hard to say.
Posted via Mobile Device
obijuan is offline   Reply With Quote
Old 08-21-2013, 10:51 AM   #27
argonaut
Senior Member
 
argonaut's Avatar
 
Join Date: Aug 2008
Location: Long Beach, CA
Posts: 1,813
Re: Tuff country 4" lift. Pinion angles?

it will come down significantly under the weight of the truck body. it looks fine to me.
Posted via Mobile Device
__________________
Jason M. @argonaut62

1972 K5 Blazer CST, Turquoise
1966 K20 Short Fleet Pickup, Big Ugly
1964 C10 Short Fleet, Gertrude

2001 Porsche 911 Carrera
1996 Ford Bronco XLT
1980 Jeep Wagoneer

2008 Honda CBR1000RR
2005 Honda RC51
1981 Honda CB750C


No dis-assemble Johnny Five! No dis-assemble!
argonaut is offline   Reply With Quote
Old 08-21-2013, 11:38 AM   #28
Bigdav160
Registered User
 
Bigdav160's Avatar
 
Join Date: Apr 2011
Location: Klein Texas
Posts: 3,852
Re: Tuff country 4" lift. Pinion angles?

Pinion angles are irrelevant at this stage also
__________________
My Classics:
'72 K20 Suburban + '65 Dodge Town Wagon
'72 Corvette Roadster +'67 Corvette Roadster
'73 Z-28 Camaro
'63 Ford SWB Uni Pickup
'50 Ford Coupe
Bigdav160 is offline   Reply With Quote
Old 08-21-2013, 01:57 PM   #29
Campbel45
Registered User
 
Join Date: May 2013
Location: Greenwood, IN
Posts: 379
Re: Tuff country 4" lift. Pinion angles?

Gotchya thanks again guys
Campbel45 is offline   Reply With Quote
Old 08-21-2013, 10:01 PM   #30
JJH Jimmy
Registered User
 
JJH Jimmy's Avatar
 
Join Date: Jun 2012
Location: Schoolcraft, Michigan
Posts: 928
Re: Tuff country 4" lift. Pinion angles?

Quote:
Originally Posted by Bigdav160 View Post
Pinion angles are irrelevant at this stage also
Correct me if I am wrong but I don't think the pinion angle will change when weight is added to the frame?
__________________
1972 GMC Jimmy 4x4 LS Swap
1985 Chevy K20
1994 GMC Yukon
2021 GMC 2500HD Duramax AT4

My "It's a Jimmy Thing" Build
http://67-72chevytrucks.com/vboard/s...d.php?t=583528
Budget Build 1985 K20
http://67-72chevytrucks.com/vboard/s...d.php?t=801565
JJH Jimmy is offline   Reply With Quote
Old 08-21-2013, 10:43 PM   #31
argonaut
Senior Member
 
argonaut's Avatar
 
Join Date: Aug 2008
Location: Long Beach, CA
Posts: 1,813
Re: Tuff country 4" lift. Pinion angles?

As the shackle rotates it changes the angle of the axle. Depending on the at-rest angle of the shackle the angular change of axle will be smaller or greater.

As was previously mentioned, I wouldn't mess with adjustments to pinion angle until you get the truck at final ride height.
Posted via Mobile Device
__________________
Jason M. @argonaut62

1972 K5 Blazer CST, Turquoise
1966 K20 Short Fleet Pickup, Big Ugly
1964 C10 Short Fleet, Gertrude

2001 Porsche 911 Carrera
1996 Ford Bronco XLT
1980 Jeep Wagoneer

2008 Honda CBR1000RR
2005 Honda RC51
1981 Honda CB750C


No dis-assemble Johnny Five! No dis-assemble!
argonaut is offline   Reply With Quote
Old 10-01-2017, 08:18 PM   #32
gmc 2500 4x4
Senior Member
 
Join Date: Mar 2012
Location: ripley ny
Posts: 2,970
Re: Tuff country 4" lift. Pinion angles?

old post, nice info. originally the rear end in my 69 gmc had tapered blocks, i left them out and now its binding, so i jacked up the pinion end 1'' and it dont bind now. guess i better get them back in? it also has a 4'' lift now. any input here?
gmc 2500 4x4 is offline   Reply With Quote
Old 10-05-2017, 08:16 PM   #33
70K10Hunter
Registered User
 
70K10Hunter's Avatar
 
Join Date: Jun 2012
Location: Hill Country
Posts: 435
Re: Tuff country 4" lift. Pinion angles?

They look short... Did you measure your stock springs? that era trucks had 52 and 56 inch springs. might have been 52 and 54inches
70K10Hunter 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 09:47 AM.


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