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 09-08-2020, 04:21 PM   #1
Baker819
Registered User
 
Join Date: Oct 2012
Location: WA
Posts: 119
How much contact do ball joint need in the taper?

I come from a background of installing big propellers on ships and inspected my new spindle and ball joints tapers. The ECE spindles had a semi smooth surface. The proforged ball joints were beautiful looking. I blue fit them and had maybe 50% contact with enough contact on the top and bottom to know they were correct. I used some lapping compound and got the spindles surface in the taper to me smooth and increased the contact to 70-80%. But the biggest end of the tapers do not touch. Averaging about 5/16" on no contact then 100% after that. When I install the ball joint and tighten it to about 60 lbs I get thats when I get the 70-80% contact... which even before I put a nut on its tight without wobble... itd just be really nice to not have the ball joint be not touching on one side.

Most people probably dont even blue fit the ball joints. With aftermarket parts and bad luck so far with my front end Im just be careful. What do you guys think?
Attached Images
 
Baker819 is offline   Reply With Quote
Old 09-09-2020, 08:00 AM   #2
67C10Step
Registered User
 
67C10Step's Avatar
 
Join Date: Jul 2019
Location: Beebe, AR
Posts: 2,379
Re: How much contact do ball joint need in the taper?

Baker,
If you are getting 70-80% contact you are probably as good, or better, than every other truck like this on the road.

I've been an engineer for almost 30 years now and tend to find myself in these situations. So much so, my daughter bought me this sticker for my hard hat for my birthday this year.
Attached Images
 
__________________
1967 C10
1980 Jeep CJ5
2020 Toyota 4Runner
2020 Toyota CH-R
2020 Acura MDX
67C10Step is offline   Reply With Quote
Old 09-09-2020, 10:05 AM   #3
SCOTI
Registered User
 
SCOTI's Avatar
 
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,894
Re: How much contact do ball joint need in the taper?

Quote:
Originally Posted by 67C10Step View Post
Baker,
If you are getting 70-80% contact you are probably as good, or better, than every other truck like this on the road.

I've been an engineer for almost 30 years now and tend to find myself in these situations. So much so, my daughter bought me this sticker for my hard hat for my birthday this year.
She's def a keeper! LoL...
__________________
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 09-09-2020, 12:23 PM   #4
Baker819
Registered User
 
Join Date: Oct 2012
Location: WA
Posts: 119
Re: How much contact do ball joint need in the taper?

Quote:
Originally Posted by 67C10Step View Post
Baker,
If you are getting 70-80% contact you are probably as good, or better, than every other truck like this on the road.

I've been an engineer for almost 30 years now and tend to find myself in these situations. So much so, my daughter bought me this sticker for my hard hat for my birthday this year.

Thats hilarious. I enjoy learning but anymore I dont take on projects that I feel I need to understand everything lol.

In the shipyard the center of the props were often hollow in middle of the taper. I think my boss said to much contact and they were really hard to unseat. After I made the post I figured I would bug the people that make ball joints and see if I can squeeze any nuggets out of them.

I agree its probably good enough, its not like its a trophy truck or something.
Baker819 is offline   Reply With Quote
Old 01-12-2021, 12:35 AM   #5
KMAT
Registered User
 
Join Date: Oct 2018
Location: Sioux center, IA
Posts: 81
Re: How much contact do ball joint need in the taper?

Lmao love the sticker
KMAT is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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 06:03 AM.


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