Author Topic: cab bushings need replacing?  (Read 5200 times)

Offline 87swb

  • Frequent Member
  • **
  • Posts: 426
cab bushings need replacing?
« on: December 13, 2004, 10:17:00 pm »
well this relates to my cab leaning on the left side.when ya'll talk about the cab bushings do ya'll mean the rubber looking mounts or something else? im beginning to believe that's the reason it leans on the left. remember the frame guy said it needed shims on the left only, yet it doesn't have any on the right side as far as i can tell. according to   all 4 cab bolts are suppost to have shims. so how can i tell if they need replacing? i just hope that the frame isn't twisted or bent after i've had it straightened. and one of the bed bolts on the left side has a shim but none of the other bed bolts have any as far as i can see.the bed sits level because i used a leveler on it but if it needs a shim that makes me think the bed or frame is bent. sorry i keep bringing up this whole frame thing but it's just wierd how some bolts have shims and others don't. either way im proud of my truck. any advice would helpful once again.


Offline roundedline

  • Administrator
  • Senior Member
  • *****
  • Posts: 2228
Re: cab bushings need replacing?
« Reply #1 on: December 14, 2004, 03:49:00 pm »
I would say that the body bushing are throwing your body alignment off.  As for "shims" on the body bushings, there are no shims.  There is a top and bottom washer that goes on the top and bottom of the bushing assembly.

Chris Lucas
www.73-87chevytrucks.com
www.captkaoscustoms.com
Project Su
Jimmy 2WD Project

Edited by: roundedline at: 12/14/04 3:49 pm

Offline 87swb

  • Frequent Member
  • **
  • Posts: 426
i'll try that
« Reply #2 on: December 14, 2004, 06:40:00 pm »
well,.....i guess what ill do is replace the cab bushings.then ill take that 1 shim out of the bed and see where i stand. but man i'll tell you what that frame is making me lose sleep.>:  i wan't that truck frame to be approximately within the GM specifications.:D  i want the bodylines to match up evenly.:D


Offline roundedline

  • Administrator
  • Senior Member
  • *****
  • Posts: 2228
Re: i'll try that
« Reply #3 on: December 15, 2004, 11:16:00 am »
I think your frame is fine.  There are no shims for the bed either from the factory.  

If you want PERFECT body lines, you are going to have to manipulate the body to get there.  Off the assembly line these trucks weren't perfect, so if you are looking for streetrod perfection, you are going to have to make it that way.

Chris Lucas
www.73-87chevytrucks.com
www.captkaoscustoms.com
Project Su
Jimmy 2WD Project


Offline 87swb

  • Frequent Member
  • **
  • Posts: 426
you're right
« Reply #4 on: December 15, 2004, 12:34:00 pm »
i probably am overreacting a little:\ . but i'll replace them bushings one day and take that shim out one day. i know the trucks aren't perfect from the factory but hearing from a 73-87 expert makes me feel better.:D  


Offline 87swb

  • Frequent Member
  • **
  • Posts: 426
leaning cab
« Reply #5 on: December 15, 2004, 10:03:00 pm »
one more thing, after my truck got out of the frame shop, i guess it's the frame or alignment print off sheet that has terms on it i have never heard before such as camber, caster, toe. could you explain to mean what all this means? it also says left front, right front, left rear, and right rear and under all those it says actual, before, and then specified range and included angle, turning angle diff. and that it has numbers.


Offline Mr Diesel

  • Frequent Member
  • **
  • Posts: 357
  • Aaron
Printoff sheet
« Reply #6 on: December 15, 2004, 11:01:00 pm »
That sheet would be the printoff of the steering alignment. Camber, caster, and toe refer to the 3 parts of the steering that had to be aligned.  

1976 C20 Crewcab, 6.2L/SM465
1982 K30 Crewcab , 427TD/TH400
1983 C30, 6.2L/TH400
1983 K30 Crewcab 454/700R4
1986 K10 350/400. 1989 K30 cab/chassis 454/SM465

Offline 87swb

  • Frequent Member
  • **
  • Posts: 426
wierd names for steering parts
« Reply #7 on: December 16, 2004, 07:19:00 pm »
thank you for clearing that up. well i tried removing the shim from underneath the bed. somebody welded the bed bolt to the bed!!!>:  why would comebody do that??? so now i'm going to have chisel the weld out unless there is an easier way to do it.