63-82 Rear Trailing Arm Rebuilding - Page 10 - Corvette Forum : DigitalCorvettes.com Corvette Forums
 
 
Go Back   Corvette Forum : DigitalCorvettes.com Corvette Forums > C3 Corvette Forums > C3 Corvette
Register Forums Garage Garage Mark Forums Read Auto EscrowInsurance Advertise

Notices

C3 Corvette
C3 Corvette General | Technical | Performance | Aftermarket | Discussions

Other sections:
Corvettes Classifieds
Corvette Detailing & Car Care
Corvette Audio/Video/Radar
General Automotive/Shop/Tools
Corvette Performance Driving/Racing

( Sponsored by: Zip Corvette Parts )

Shops/Tuners
Custom Image Corvettes
A&A Corvette
Corvette tuner

Interior
Corvette aftermarket products

Insurance



Parts & Products
Race Ramps
Edelbrock
ATI/Procharger
Corvetteguys.com
Melrose Motorsports
Parts Taxi
Airaid
Pfadt Racing
Madvette Motorsports
Hi-tech Custom Concepts
Corvette Garage
Corvette Parts and Accessories
Corvette Car Care Products
Corvette HID

Tracks/Schools
Bob Bondurant School of High Performance Driving
Corvette driving school

Wheels/Tires
Cray Wheels

Services
BADWERKS.com
Reply
 
Thread Tools
Old 03-07-2009, 08:59 AM   #136
big_G
DC Crew
 
big_G's Avatar
 
Posts: 1,197
Member #62397
Member since: Jul 2007
Location: Austin, Texas

My Corvette(s)
Supercharged '68C, L-79'68R, L-71'69C

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by gtr1999 View Post
Those appear to be replacement seals. Were they Hyatt or NDH bearings?
They must have been some noise driving. What year is that off, looks like a later spindle with on 2 holes?
These came off a '79. I did both sides, only 1 side was like this. Oh yea...noisier than hell....the assembly rivets were gone, so I assume not the originals. Didn't even think to identify the bearings. Anytime I see this it is usually caused by inadequate initial grease. I have pulled apart newly assembled units (not factory build) that had no apparent grease anywhere inside the carrier. Those clowns keep me in business....
big_G is offline   Reply w/quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 03-07-2009, 04:20 PM   #137
lsejlowe
DC Pit Crew
 
lsejlowe's Avatar
 
Posts: 10,260
Member #6680
Member since: Jan 2004
Location: Omaha, NE

My Corvette(s)
black '69 350/350 4spd

Thanks: 8
Thanked 63 Times in 59 Posts
Wow, that thing is a mess. You're saying they didn't even pack the bearings before installing?
lsejlowe is offline   Reply w/quote Quick reply to this message
Optimists think the glass is half full.
Pessimists think the glass is half empty.
Engineers realize it's twice as big as it needs to be.
Old 03-07-2009, 05:54 PM   #138
big_G
DC Crew
 
big_G's Avatar
 
Posts: 1,197
Member #62397
Member since: Jul 2007
Location: Austin, Texas

My Corvette(s)
Supercharged '68C, L-79'68R, L-71'69C

Thanks: 0
Thanked 0 Times in 0 Posts
Who knows...Like I said, I've taken some apart without a speck of grease inside. Like the shop forgot/didn't know to grease them.
big_G is offline   Reply w/quote Quick reply to this message
 
Old 03-10-2009, 02:42 PM   #139
J.Peter
DC Crew
 
Posts: 1
Member #81269
Member since: Feb 2009
Location: Wisconsin

My Corvette(s)
70 BB 76 stk

Thanks: 0
Thanked 0 Times in 0 Posts
Setup End play reduction during assembly

This thread is excellent Thanks for starting it.
I have my arms removed from the car and all taken apart and I will be able to use all of my old major parts. I will be replacing the bearings and seals.
I have bought the bearing setup tool and my question is in regards to its use.
How much end play reduction occurs when the bearings are pressed onto the spindle shaft? In other words what is the difference between the end play number using the tool with the bearings having no press fit and the end play of the finished assembly with those same bearings pressed onto the spindle shaft?
One would expect the cone and rollers of the bearings to expand as it is pressed on with an interference fit and this expansion should reduce the end play.
I realize that both the bearing and the shaft have to be measured very accurately in order to predict the amount of interference fit. The bearing cones have a total ID tolerance of .0005 inch so using Timken Bearings you could assume that the bearing is in the middle of the tolerance range. Actually measuring the bearing cone bore is quite difficult in the typical home shop so using published numbers may be okay. The spindle OD can be measured carefully with a good micrometer.
Now that you know the amount of interference fit for each bearing you should be able to predict the end play reduction.
Has anyone documented this end play reduction during setup? I realize that it will vary depending upon the amount of press fit on each of the bearings.
Thanks again for all the previous info in regards to this project.
J.Peter is offline   Reply w/quote Quick reply to this message
Old 03-11-2009, 02:52 AM   #140
stinger12
DC Crew
 
stinger12's Avatar
 
Posts: 598
Member #56526
Member since: Jan 2007
Location: Calgary/Alberta/Canada

My Corvette(s)
1976 stingray

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by J.Peter View Post
what is the difference between the end play number using the tool with the bearings having no press fit and the end play of the finished assembly with those same bearings pressed onto the spindle shaft
There should be no difference between the tool and the final setup. However, it all depends on whether or not the endplay was measured correctly to begin with.
stinger12 is offline   Reply w/quote Quick reply to this message
Old 03-11-2009, 11:29 AM   #141
gtr1999
Supporting Vendor
 
gtr1999's Avatar
 
Posts: 3,762
Member #44662
Member since: Apr 2006
Location: New Haven CT-USA!!!

My Corvette(s)
69 & 72

Thanks: 18
Thanked 177 Times in 159 Posts
Jeremy is correct. Another thing I found, as mentioned before, using cheaper bearings may cause this to happen.
gtr1999 is online now   Reply w/quote Quick reply to this message
Gary
69 vert 350 M20-373's
72 coupe 350,TH400,336's
Old 04-05-2009, 04:10 PM   #142
gtr1999
Supporting Vendor
 
gtr1999's Avatar
 
Posts: 3,762
Member #44662
Member since: Apr 2006
Location: New Haven CT-USA!!!

My Corvette(s)
69 & 72

Thanks: 18
Thanked 177 Times in 159 Posts
I didn't get any pictures of the 80-82 T/A's till now.
Here is a LH 82 done. These arms were exceptional, no dents,dings, aligment guy specials, or weld splatter. I did the POR15 and top coat deal on them so they should last forever.




Here is the D-Flat. I see a lot of first timers putting the left & right supports on the wrong arm. One guy even said I did this on another fourm I did not for the record. The D-Flat always goes to the rear of the arm.




These have a 030 shim on the outer race, I was told probably an alignment concern with the different yokes. If you find one it's not for the endplay, that should be thicker and in between the bearings. I put this one back on each arm.




Also with this different yoke be sure to install it so you can get the cotter pin in place. Use a solid pin too, I see a lot use smaller cotter pins, get the right one. The ones I use have no play, fit the hole.

gtr1999 is online now   Reply w/quote Quick reply to this message
Gary
69 vert 350 M20-373's
72 coupe 350,TH400,336's
Old 05-21-2009, 09:17 AM   #143
gtr1999
Supporting Vendor
 
gtr1999's Avatar
 
Posts: 3,762
Member #44662
Member since: Apr 2006
Location: New Haven CT-USA!!!

My Corvette(s)
69 & 72

Thanks: 18
Thanked 177 Times in 159 Posts
Some more examples of bad parts. This support was hammered on by someone and bent the leg. The D flat on the other support is damaged from a torch to remove a frozen shock mount that was rolled over on the flat as well.



gtr1999 is online now   Reply w/quote Quick reply to this message
Gary
69 vert 350 M20-373's
72 coupe 350,TH400,336's
Old 05-21-2009, 12:34 PM   #144
TNprogrammer
DC Crew
 
TNprogrammer's Avatar
 
Posts: 880
Member #75580
Member since: Oct 2008
Location: Nashville, TN USA

My Corvette(s)
1978 Pace Car

Thanks: 4
Thanked 4 Times in 3 Posts
you guys have referred to the d-flat, but I'm not sure what that is. Can you guys post a pic with an arrow pointing to the "D-flat"? Thanks
TNprogrammer is offline   Reply w/quote Quick reply to this message
Old 05-21-2009, 02:49 PM   #145
lsejlowe
DC Pit Crew
 
lsejlowe's Avatar
 
Posts: 10,260
Member #6680
Member since: Jan 2004
Location: Omaha, NE

My Corvette(s)
black '69 350/350 4spd

Thanks: 8
Thanked 63 Times in 59 Posts
I don't have a pic, but I'll try with words... the two legs coming off the bottom of the bearing carrier have holes through them where the shock mount bolt goes through. The shock mount needs to not rotate, so the hole in the rear bearing carrier leg has a flat on one side, hence the D shape. That flat corresponds to the flat on the shock mount. So if your shock mount is stuck, DO NOT put a pipe wrench on it and try to rotate it. If you succeed you will have either ruined your shock mount, ruined your bearing carrier, or both.

notice the flat on the end of the shock mount by the nut:
lsejlowe is offline   Reply w/quote Quick reply to this message
Optimists think the glass is half full.
Pessimists think the glass is half empty.
Engineers realize it's twice as big as it needs to be.
Old 05-21-2009, 08:29 PM   #146
TWINRAY
DC Crew
 
TWINRAY's Avatar
 
Posts: 228
Member #63158
Member since: Aug 2007
Location: NY

My Corvette(s)
'67 Coupe and '69 Convert.

Thanks: 2
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by gtr1999 View Post
I didn't get any pictures of the 80-82 T/A's till now.
Here is a LH 82 done. These arms were exceptional, no dents,dings, aligment guy specials, or weld splatter. I did the POR15 and top coat deal on them so they should last forever.
That finished TA is a thing of beauty
TWINRAY is offline   Reply w/quote Quick reply to this message
I'm tryin' to geterdone this year
Old 05-21-2009, 10:17 PM   #147
TNprogrammer
DC Crew
 
TNprogrammer's Avatar
 
Posts: 880
Member #75580
Member since: Oct 2008
Location: Nashville, TN USA

My Corvette(s)
1978 Pace Car

Thanks: 4
Thanked 4 Times in 3 Posts
So is THIS it?
TNprogrammer is offline   Reply w/quote Quick reply to this message
Old 05-22-2009, 05:00 AM   #148
yukon988
DC Crew
 
yukon988's Avatar
 
Posts: 194
Member #63421
Member since: Aug 2007
Location: Oita, Japan

My Corvette(s)
1972 Coupe

Thanks: 0
Thanked 0 Times in 0 Posts
No, it is here. The green arrow is pointing to the flat. The other hole is completely round. Other than this flat, I think these pieces are interchangeable from side to side so sometimes people put them on the wrong side when assembling the trailing arms. If you do that, when you go to install the shock, the shock mount won't go in right. At that point, its a lot of work to back up and swap these back to the right side.

yukon988 is offline   Reply w/quote Quick reply to this message
Old 05-24-2009, 08:55 PM   #149
TNprogrammer
DC Crew
 
TNprogrammer's Avatar
 
Posts: 880
Member #75580
Member since: Oct 2008
Location: Nashville, TN USA

My Corvette(s)
1978 Pace Car

Thanks: 4
Thanked 4 Times in 3 Posts
Ah, thanks. That's good to know. I need to rebuild my e-brake and I thought that would be as good a time as any to rebuild the T/A.
TNprogrammer is offline   Reply w/quote Quick reply to this message
Old 01-02-2010, 04:41 PM   #150
gtr1999
Supporting Vendor
 
gtr1999's Avatar
 
Posts: 3,762
Member #44662
Member since: Apr 2006
Location: New Haven CT-USA!!!

My Corvette(s)
69 & 72

Thanks: 18
Thanked 177 Times in 159 Posts
Take a look at this original 64 arm, a bit of ventilation added!






gtr1999 is online now   Reply w/quote Quick reply to this message
Gary
69 vert 350 M20-373's
72 coupe 350,TH400,336's
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Corvette Forum : DigitalCorvettes.com Corvette Forums forums, you must first register.
Please enter your desired user name (12 CHARACTERS MAXIMUM), your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
City / State / Country?
Where you live
What kind of Corvette(s) do you own?
This field is not required.
Insurance
Please select your insurance company (Optional)

Log-in


Thread Tools

Posting Rules
You may post new threads
You may 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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Spotters Guide to C4 Wheels OldVetteFan C4 Corvette 30 05-11-2011 09:14 PM
Know Your C6 Corvette - Model Year Differences OldVetteFan Corvette History 6 12-23-2008 12:21 AM
My C4 build codes - assistance! sarge C4 Corvette 5 01-09-2008 02:52 PM
Pulling the body - where to get info Cetrov C3 Corvette 5 10-03-2006 02:55 PM
My trailing arm and hydraulic emergency brake carguy4sure C3 Corvette 2 10-30-2005 07:22 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -6. The time now is 02:55 PM.




Powered by vBulletin® Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
2003-2011, DigitalCorvettes.com - All Rights Reserved