63-82 Rear Trailing Arm Rebuilding - Page 14 - 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 01-16-2014, 06:21 PM   #196
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
Well I found another Bubbafied part. The same arm that had the broken bracket had a hammered on spindle spacer.
I can't figure out why someone would do this, it was purposeful since the spacer is hammered 360* and the large bell end is really beat up. The spacer was probably junk when they worked on it and just made it worse. You can see the gap under the race, no way in the world someone would be able to setup the bearings with a spacer like this. I have some good used GM or new aftermarkets here to solve the problem. For those of you rebuilding your bearing be sure to check and parallel grind these otherwise you are going to have all kinds of setup issues.






gtr1999 is offline   Reply w/quote Quick reply to this message
Gary
69 vert 350 M20-373's
72 coupe 350,TH400,336's
Sponsored Links
Advertisement
 
Old 03-20-2014, 08:57 PM   #197
automan_1954
DC Crew
 
Posts: 2
Member #128194
Member since: Jul 2013

Thanks: 1
Thanked 1 Time in 1 Post
Sounds like your an expert

Quote:
Originally Posted by 80VetteGuy View Post
I'm not saying that his post are not good. Just about all of them are. I just felt that this one was left short. If you guys are going to do this on your own, you need to know everything and so should that the guy rebuilding it.
Hey 80VetteGuy, sounds like your just pissed that Gary posted all that info and lost you a few jobs. I have been a Master tech for 37 years and been working on cars for 47 years and since don't want to do trailing arms. So keep up the great work Gary and take it easy 80 VetteGuy. You stated that you think was wrong with Gary's post now drop it already.
I'm sure the rest of us are just as sick of hearing you whine. But thank is the input.
automan_1954 is offline   Reply w/quote Quick reply to this message
Old 03-20-2014, 09:33 PM   #198
hamerDown
DC Crew
 
hamerDown's Avatar
 
Posts: 266
Member #132562
Member since: Oct 2013
Location: Glenolden Pa USA

My Corvette(s)
1981

Thanks: 100
Thanked 4 Times in 4 Posts
Quote:
Originally Posted by gtr1999 View Post
Well I found another Bubbafied part. The same arm that had the broken bracket had a hammered on spindle spacer.
I can't figure out why someone would do this, it was purposeful since the spacer is hammered 360* and the large bell end is really beat up. The spacer was probably junk when they worked on it and just made it worse. You can see the gap under the race, no way in the world someone would be able to setup the bearings with a spacer like this. I have some good used GM or new aftermarkets here to solve the problem. For those of you rebuilding your bearing be sure to check and parallel grind these otherwise you are going to have all kinds of setup issues.






I'm thinking, the reason it's hammered all the way around was to displace the metal to make it grow...that's my best guess.
hamerDown is offline   Reply w/quote Quick reply to this message
 
Old 11-30-2016, 07:58 PM   #199
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 was asked about Tom's 31 spline outer axles and didn't see any pictures of them scanning over this thread so I figured I would add them so those who want to see what they look like. They come in dual bolt patterns for stock 7/16 studs or 1/2-20 x3" ARP's. Typically if I am building a 31, then I use the 1/2 - 20's for a bit more strength. I also machine them down to size. The inner flanges for these can be 1350 or 1480 size.



Here is a stock 17 next to a 31




31 in smooth jaw vise




Dual bolt pattern. I use the 1/2 typically and tap the 7/16 to fit the rotors.










1350 inner flange

gtr1999 is offline   Reply w/quote Quick reply to this message
Gary
69 vert 350 M20-373's
72 coupe 350,TH400,336's
The Following 2 Users Say Thank You to gtr1999 For This Useful Post:
DMB 75 (11-30-2016), Sly Vette (12-01-2016)
Old 12-05-2016, 06:09 PM   #200
cl55amg
DC Crew
 
cl55amg's Avatar
 
Posts: 30
Member #107697
Member since: Jun 2010
Location: MA

My Corvette(s)
1968 Convertible

Thanks: 0
Thanked 0 Times in 0 Posts
Nice work Gary. Hey just let me know when you can take on my TA's. This is Peter from Monson.
cl55amg is offline   Reply w/quote Quick reply to this message
Old 12-06-2016, 09:28 AM   #201
big2bird
DC Crew
 
big2bird's Avatar
 
Posts: 5,916
Member #58543
Member since: Mar 2007
Location: Anaheim,Ca.,USA

My Corvette(s)
1981 T-Top Caprice powered Disco Buggy

Thanks: 0
Thanked 1 Time in 1 Post
Quote:
Originally Posted by gtr1999 View Post
July 2013 update

I have a set of Tubular Trailing Arms in to build. These are pretty nice, I guess there was an issue with brackets in the past and that is corrected. They come with "johnny joints" in place of the stock rubber bushings. I can't say I've had any problem with good rubber bushings for the past 40 years.

They come with larger 7/16 bolts they use over the original 3/8 kurled studs that are used in the stock and offset arms.
The arm holes are drilled oversize so the bolts are loose fit, the caliper bracket holes have to be drilled larger as well since they are 3/8". Once it's all torqued up it should be ok but I like the stud better.

With that said I'll leave it up to you if you think these are what you want. They look super great & are strong but I have never had a stock or offset arm fail - unless it was impacted and/or rotted. I have new stock arms on my street vette and my son's drag vette and they work fine.




Here are the supplied grade 8 bolts and locknuts





Front bushing. I use stock rubber in all my cars and like them. I haven't tried these in one of my cars.



Bolts won't go through a 3/8 hole, make sure you want to drill your originals out otherwise get another set of brackets.



Supports may need to be reemed too



Pretty loose in the arm, I don't like this part at all.

Gary, did you happen to weigh these, or know how much lighter, if any, they are?
big2bird is offline   Reply w/quote Quick reply to this message
Old 12-06-2016, 09:42 AM   #202
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
Birdman, long time how is retirement there sparky?

No I don't recall if they were much lighter. They are a good product but not one I would typically use. I have run new stock arms at the drags and they were fine. I don't like the way the bolts are with these arms, unless they have changed them since I did that set?
gtr1999 is offline   Reply w/quote Quick reply to this message
Gary
69 vert 350 M20-373's
72 coupe 350,TH400,336's
Old 12-06-2016, 09:50 AM   #203
big2bird
DC Crew
 
big2bird's Avatar
 
Posts: 5,916
Member #58543
Member since: Mar 2007
Location: Anaheim,Ca.,USA

My Corvette(s)
1981 T-Top Caprice powered Disco Buggy

Thanks: 0
Thanked 1 Time in 1 Post
Quote:
Originally Posted by gtr1999 View Post
Birdman, long time how is retirement there sparky?

No I don't recall if they were much lighter. They are a good product but not one I would typically use. I have run new stock arms at the drags and they were fine. I don't like the way the bolts are with these arms, unless they have changed them since I did that set?
6 more months.

Just putting the car on a diet, and mulling around ideas.

Do you know if Tom still makes those aluminum rear caliper brackets? I bought some Willwoods, and would like to add those first.

This aluminum fetish is spendy.
big2bird is offline   Reply w/quote Quick reply to this message
Old 12-06-2016, 10:41 AM   #204
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
You can call him but I think those a long gone now. He will be closing in the near future so I would get anything you need now.
gtr1999 is offline   Reply w/quote Quick reply to this message
Gary
69 vert 350 M20-373's
72 coupe 350,TH400,336's
Old 12-06-2016, 10:51 AM   #205
big2bird
DC Crew
 
big2bird's Avatar
 
Posts: 5,916
Member #58543
Member since: Mar 2007
Location: Anaheim,Ca.,USA

My Corvette(s)
1981 T-Top Caprice powered Disco Buggy

Thanks: 0
Thanked 1 Time in 1 Post
Quote:
Originally Posted by gtr1999 View Post
You can call him but I think those a long gone now. He will be closing in the near future so I would get anything you need now.
Thank you old friend. PM sent.
big2bird is offline   Reply w/quote Quick reply to this message
Old 12-06-2016, 08:34 PM   #206
maniacmechanic
DC Crew
 
maniacmechanic's Avatar
 
Posts: 607
Member #169489
Member since: Nov 2016
Location: IL

My Corvette(s)
C4 Roadster

Thanks: 13
Thanked 37 Times in 34 Posts
Quote:
Originally Posted by gtr1999 View Post
You can call him but I think those a long gone now. He will be closing in the near future so I would get anything you need now.
I Refuse to build any rear diff for High Performance & Drag Race use with China parts & Sign my Name on it Gary.

Looking at and end of an era unfortunate.

Next phase is one off fabrication.
maniacmechanic is offline   Reply w/quote Quick reply to this message
" The Truth Will Always Prevail ".
Old 12-06-2016, 09:12 PM   #207
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
Very true Brian. Tom's stuff has been proven over 40 years now and made in CA or ID.

There is a vendor now pushing their new 9" IRS which I think is aimed at capturing Tom's business. It will be interesting to see where that project ends up and just how strong it is once subjected to a lot of abuse. Unlike some "snakes in the grass" on other forums I have no intention of going in that direction.
gtr1999 is offline   Reply w/quote Quick reply to this message
Gary
69 vert 350 M20-373's
72 coupe 350,TH400,336's
Old 12-06-2016, 09:19 PM   #208
maniacmechanic
DC Crew
 
maniacmechanic's Avatar
 
Posts: 607
Member #169489
Member since: Nov 2016
Location: IL

My Corvette(s)
C4 Roadster

Thanks: 13
Thanked 37 Times in 34 Posts
Quote:
Originally Posted by gtr1999 View Post
Very true Brian. Tom's stuff has been proven over 40 years now and made in CA or ID.

There is a vendor now pushing their new 9" IRS which I think is aimed at capturing Tom's business. It will be interesting to see where that project ends up and just how strong it is once subjected to a lot of abuse. Unlike some "snakes in the grass" on other forums I have no intention of going in that direction.
A Ford 9" inch is actually not that strong in stock form.
Safe to 400-425 HP & 400-450 Ft/lbs flywheel torque in a 3,400lb car.
The Very Best 9 inch was used in the 428 Super Cobra Jet Mustang.
A few Grand Torino's go the same spec 9 inch diff.
You have to start with all aftermarket parts to build a Strong 9 inch.
Not so cost effective then.

The pinion offset - dropdown is much more than Chevy used.
maniacmechanic is offline   Reply w/quote Quick reply to this message
" The Truth Will Always Prevail ".
Old 12-06-2016, 09:29 PM   #209
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
Time will tell about this new setup. I agree with you that quality parts need to be used. Tom always liked the 12 bolt conversion, it would still be my choice as well for a vette IRS.
gtr1999 is offline   Reply w/quote Quick reply to this message
Gary
69 vert 350 M20-373's
72 coupe 350,TH400,336's
Old 12-06-2016, 09:43 PM   #210
maniacmechanic
DC Crew
 
maniacmechanic's Avatar
 
Posts: 607
Member #169489
Member since: Nov 2016
Location: IL

My Corvette(s)
C4 Roadster

Thanks: 13
Thanked 37 Times in 34 Posts
Quote:
Originally Posted by gtr1999 View Post
Time will tell about this new setup. I agree with you that quality parts need to be used. Tom always liked the 12 bolt conversion, it would still be my choice as well for a vette IRS.
Not sure tonight Gary.
I can tell you its real easy to build 900 HP today with a Single Turbo Charger used, Correct intercooler intact, and right fuel system.
The next generation of young Corvette owners will want HP.
The stuff on You Tube is real.
I worked on 2 separate Turbo projects this past summer with my bud Ed.
Not even drag race & stellar results on the street.
347 cubes on boost runs like a 800 ci BBC.
maniacmechanic is offline   Reply w/quote Quick reply to this message
" The Truth Will Always Prevail ".
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 05:54 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