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 > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 09-28-2011, 08:32 PM   #1
bucannon
Salty Sailor
 
bucannon's Avatar
 
Join Date: May 2009
Location: Savannah, Ga
Posts: 603
Cool 3/4 ton -vs- 1/2 ton question

okay so recently i have finally found out from 1000 miles away why my lower control arms will not center up on the k frame. and it left me thinking if Rock Auto really skrewed up the lower a arms or if the "holes" in the lower control arm shaft are spaced further apart on a 3/4 ton than they are on a half ton.


because thats why my lower a arms have to come off and i have to pressure wash, paint, put new bushings, and transfer the balljoints into my original lower control arms....


i would just switch the shafts but the way they are connected to the control arm is different than the original.

if yall recall from my build thread i had to modify the shock mounts to get the shocks to fit also. Rock Auto will be recieving a nasty letter from me once this is all resolved.
__________________
86 c-10 Custom Deluxe

Savannah, Georgia
bucannon is offline   Reply With Quote
Old 09-28-2011, 08:33 PM   #2
bucannon
Salty Sailor
 
bucannon's Avatar
 
Join Date: May 2009
Location: Savannah, Ga
Posts: 603
Cool Re: 3/4 ton -vs- 1/2 ton question

here is a picture so yall get the idea of what im talking about
Attached Images
 
__________________
86 c-10 Custom Deluxe

Savannah, Georgia
bucannon is offline   Reply With Quote
Old 09-29-2011, 02:35 PM   #3
78 Chevyrado
Account Suspended
 
Join Date: Dec 2007
Location: Unnapreciative, Trollville
Posts: 2,079
Re: 3/4 ton -vs- 1/2 ton question

1/2 ton will have rubber bushings in the control arm shafts and a washer and nut on the ends.

3/4 and 1 tons have steel bushings that thread on the end of the shaft AND into the control arm itself. it IS the nut and has a grease fitting in the center of the end.

This one is a 3/4 ton steel bushing.
78 Chevyrado is offline   Reply With Quote
Old 09-29-2011, 09:40 PM   #4
bucannon
Salty Sailor
 
bucannon's Avatar
 
Join Date: May 2009
Location: Savannah, Ga
Posts: 603
Cool Re: 3/4 ton -vs- 1/2 ton question

Thanks for the help but thats the one thing i already knew. i want to know if the 3/4 arm will go on a 1/2 ton k-frame normally.
__________________
86 c-10 Custom Deluxe

Savannah, Georgia
bucannon is offline   Reply With Quote
Old 09-30-2011, 08:44 PM   #5
bucannon
Salty Sailor
 
bucannon's Avatar
 
Join Date: May 2009
Location: Savannah, Ga
Posts: 603
Re: 3/4 ton -vs- 1/2 ton question

does anybody know if the tabs on the 3/4 ton k frame and 1/2 k frame are the same?
__________________
86 c-10 Custom Deluxe

Savannah, Georgia
bucannon is offline   Reply With Quote
Old 10-02-2011, 08:23 PM   #6
bucannon
Salty Sailor
 
bucannon's Avatar
 
Join Date: May 2009
Location: Savannah, Ga
Posts: 603
Re: 3/4 ton -vs- 1/2 ton question

hope this will further explain what im needing to find out. if the distance between the two holes are different also if the bore size is the same
Attached Images
 
__________________
86 c-10 Custom Deluxe

Savannah, Georgia
bucannon is offline   Reply With Quote
Old 10-04-2011, 11:58 PM   #7
BigRed76
Registered User
 
BigRed76's Avatar
 
Join Date: Jan 2010
Location: Loveland, CO
Posts: 1,921
Re: 3/4 ton -vs- 1/2 ton question

Just a quick question...what do you mean by a k-frame?
__________________
Zach

1970 Chevrolet Custom Camper K20
1971 GMC Super K2500, 12V/NV4500 swap in progress
1971 Chevrolet Custom C10
1972 Chevrolet Custom Deluxe C20, 5.3/4L60E
1972 Oldsmobile Cutlass Supreme, 455/TH400, 3.73 posi
2004 GMC Sierra 2500HD, LB7/Allison, CCSB
2005 GMC Sierra 1500, 5.3/4L60E, CCSB

BigRed76 is offline   Reply With Quote
Old 10-05-2011, 10:24 AM   #8
bucannon
Salty Sailor
 
bucannon's Avatar
 
Join Date: May 2009
Location: Savannah, Ga
Posts: 603
Cool Re: 3/4 ton -vs- 1/2 ton question

Quote:
Originally Posted by BigRed76 View Post
Just a quick question...what do you mean by a k-frame?
sorry i must be talking some Mopar talk haha. you know the x member where the engine sits on and in 2wd where the LCA mounts to
Attached Images
 
__________________
86 c-10 Custom Deluxe

Savannah, Georgia
bucannon 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 05:53 PM.


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