C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Off-set trailing arms !

Thread Tools
 
Search this Thread
 
Old Apr 14, 2013 | 12:11 AM
  #1  
96Smoke-Eater's Avatar
96Smoke-Eater
Thread Starter
Cruising
 
Joined: Jul 2010
Posts: 12
Likes: 0
From: Albertville AL
Default Off-set trailing arms !

Hello,
I have a 72 Stingray I was just wanting to get some opinions on installing a pair of Off-set trailing arms. I know what they do, they allow U to run a wider tire outback. But Is this mod something to really invest in ? Is it something that ever Vette owner should definitely do or not... I like the idea of some bigger meats on the back. Or should I just put my money in to a better mod ? Just wondering what the C3 community says about it....
Reply
Old Apr 14, 2013 | 04:55 AM
  #2  
SuperBuickGuy's Avatar
SuperBuickGuy
Melting Slicks
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2012
Posts: 2,548
Likes: 379
From: Woodinville WA
Default

IMO yes, it's worth it. Wider tires = better traction. They're also stiffer laterally, and it replaces your bushings - which, in a lot of C3s are perished.
Reply
Old Apr 14, 2013 | 06:27 AM
  #3  
Hadez's Avatar
Hadez
Drifting
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Sep 2004
Posts: 1,625
Likes: 4
From: Miami FL
Default

You can run 18's and up on stock trailing arms. This is not readily known. Search for a post by "Gordon". 10" wide 17's will not work but 18's will.

Last edited by Hadez; Apr 14, 2013 at 09:27 AM.
Reply
Old Apr 14, 2013 | 09:25 AM
  #4  
Tom454's Avatar
Tom454
Le Mans Master
20 Year Member
 
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
Default

Originally Posted by 96Smoke-Eater
Hello,
I have a 72 Stingray I was just wanting to get some opinions on installing a pair of Off-set trailing arms. I know what they do, they allow U to run a wider tire outback. But Is this mod something to really invest in ? Is it something that ever Vette owner should definitely do or not... I like the idea of some bigger meats on the back. Or should I just put my money in to a better mod ? Just wondering what the C3 community says about it....
I have them on my 70. I run BFG 295-50's But I also lowered the bump stop on the frame. One thing I did notice though- I installed new diff side yokes and they wore down very quickly. Less than 8K miles and I have to re-place them again. Not sure if this is a quality control issue on the yokes, or a wide tire leverage issue. The yokes were the refurbed ones with the (supposedly) hardened insert. The bearings are fine.
Reply
Old Apr 14, 2013 | 11:14 AM
  #5  
MacVette86's Avatar
MacVette86
Racer
10 Year Member
 
Joined: Mar 2005
Posts: 288
Likes: 1
From: Maple Ridge British Columbia
Default

I put the Vansteel offset trailing arms on because I had to replace/rebuild the original arms anyway. Figured I'd put on a brand new quality product that would also allow me maximum flexibility with tire/rim combos on the rear of my car.
Reply
Old Apr 14, 2013 | 01:17 PM
  #6  
540 vette's Avatar
540 vette
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2002
Posts: 11,605
Likes: 344
From: No Where USA
Default

Guys have put some really wide tire on their cars on the forum without them. I have 275´s on my car.
If you need wider backhalf your car.
Reply
Old Apr 14, 2013 | 02:39 PM
  #7  
MotorHead's Avatar
MotorHead
Race Director
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2000
Posts: 17,647
Likes: 189
From: Who says "Nothing is impossible" ? I've been doing nothing for years.
Default

I had 295's on stock trailing arm, anything bigger and your going to hit the frame before you run out of room with the off-set trailing arms. In reality they are now dinosaurs especially with the bigger wheel tire combinations available.

I run 285/40/18's on the back with no issues now with stock trailing arms. All the points we had to worry about with 15in. wheels are now gone, they are all inside the wheel now and the trailing arm is curved inward meaning there is more room as you move from the hub to pivot point.
Reply
Old Apr 14, 2013 | 04:58 PM
  #8  
427Hotrod's Avatar
427Hotrod
Race Director
25 Year Member
Liked
Loved
Top Answer: 5
 
Joined: Jan 2000
Posts: 13,010
Likes: 2,248
From: Corsicana, Tx
2020 C2 of the Year - Modified Winner
2020 Corvette of the Year (performance mods)
C2 of Year Winner (performance mods) 2019
2017 C2 of Year Finalist
Default

You can run a lot of tire with stock arms if you move the emergency brake cable tab (simple).

I've still got stock arms on my car and they're doing fine.

I bought a set of really nice offsets about 10 years ago. They hung on the wall so long I recently gave them to a buddy of mine.

JIM
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-1

2027 Corvette vs The World: Every Model vs Closest Competitor

 Joe Kucinski
story-2

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-3

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-4

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
story-5

10 Things C8 Corvette Owners Hate (But Won't Tell You)

 Joe Kucinski
story-6

10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

 Brett Foote
story-7

Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

 Joe Kucinski
story-8

Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

 Michael S. Palmer
story-9

5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

 Joe Kucinski
Old Apr 14, 2013 | 09:34 PM
  #9  
roscobbc's Avatar
roscobbc
Drifting
20 Year Member
Active Streak: 30 Days
Liked
Loved
 
Joined: Oct 2005
Posts: 1,527
Likes: 148
From: East London/SW Essex UK
Default

Originally Posted by MotorHead
I had 295's on stock trailing arm, anything bigger and your going to hit the frame before you run out of room with the off-set trailing arms. In reality they are now dinosaurs especially with the bigger wheel tire combinations available.

I run 285/40/18's on the back with no issues now with stock trailing arms. All the points we had to worry about with 15in. wheels are now gone, they are all inside the wheel now and the trailing arm is curved inward meaning there is more room as you move from the hub to pivot point.
Motorhead I run same sized rubber as you with 9" rim and 5" backspace on stock trailing arms. Measuring at the closest point to the inner fender/body there is about 1/2" clearance - sufficient enough one might think - however there are signs of 'polished' contact which I am going to guess is trailing arm flex/movement under extreme cornering - or perhaps flexing of the stock trailing arm rubber bushes. Its not really a significant issue with no indication on the tyres of contact - just makes me wonder if 'poly' bushes would help prevent this?
Reply
Old Apr 16, 2013 | 12:03 AM
  #10  
RBrid's Avatar
RBrid
Burning Brakes
25 Year Member
Photoriffic
Loved
Community Favorite
 
Joined: Feb 1999
Posts: 1,052
Likes: 389
From: Woodinville WA
Default

MotorHead, did you have to move the emergency brake cable tab with your 285/40/18 combination? Thx!
Reply
Old Apr 16, 2013 | 12:13 AM
  #11  
Dirk76's Avatar
Dirk76
Instructor
 
Joined: Apr 2012
Posts: 243
Likes: 3
From: Sydney Australia
Default

Originally Posted by 427Hotrod
You can run a lot of tire with stock arms if you move the emergency brake cable tab (simple).



JIM
i have my t/a off. Does anyone have a berfore and after on the cable move.
Reply
Old Apr 16, 2013 | 01:11 AM
  #12  
427Hotrod's Avatar
427Hotrod
Race Director
25 Year Member
Liked
Loved
Top Answer: 5
 
Joined: Jan 2000
Posts: 13,010
Likes: 2,248
From: Corsicana, Tx
2020 C2 of the Year - Modified Winner
2020 Corvette of the Year (performance mods)
C2 of Year Winner (performance mods) 2019
2017 C2 of Year Finalist
Default

Here's a pic of mine if you look closely. Pretty much just moving it from the side to the top.




JIM

Last edited by 427Hotrod; Apr 16, 2013 at 01:20 AM.
Reply
Old Apr 16, 2013 | 08:12 AM
  #13  
roscobbc's Avatar
roscobbc
Drifting
20 Year Member
Active Streak: 30 Days
Liked
Loved
 
Joined: Oct 2005
Posts: 1,527
Likes: 148
From: East London/SW Essex UK
Default

Originally Posted by 427Hotrod
Here's a pic of mine if you look closely. Pretty much just moving it from the side to the top.




JIM
Sorry to hi-jack thread - Jim now you have had the Wilwoods on the car a while - what are you thoughts about them - worth the additional cost?
Reply
Old Apr 16, 2013 | 11:32 PM
  #14  
427Hotrod's Avatar
427Hotrod
Race Director
25 Year Member
Liked
Loved
Top Answer: 5
 
Joined: Jan 2000
Posts: 13,010
Likes: 2,248
From: Corsicana, Tx
2020 C2 of the Year - Modified Winner
2020 Corvette of the Year (performance mods)
C2 of Year Winner (performance mods) 2019
2017 C2 of Year Finalist
Default

I think they are a great product. They WILL help braking especially if you put sticky tires on it. And would really help if you installed larger diameter wheels and calipers/rotors. I wanted to stay with my 15" stuff...so there is only so much to work with.

Of course stock stuff does very well too if it's working well as we found out during the testing.

The quality of the Wilwood stuff is really good and makes a good addition. It all depends on what you're doing. If you're racing or using stuff hard..they make a lot of sense if for nothing else the weight savings and heat dissipation. If you are going to have to buy cores or pay to ship them back and forth, the Wilwoods get even more attractive.

Mine still has a rock hard pedal, no seeps or anything like that. Nothing to complain about...and I've definitely tested them well into the triple digit range a lot of times!

JIM
Reply
Old Apr 17, 2013 | 04:19 AM
  #15  
aaroncorvette's Avatar
aaroncorvette
Burning Brakes
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2009
Posts: 845
Likes: 54
From: Bangor, Northern Ireland
Default

I have 17 x 9.5 rims with stock trailing arms (E - bracket moved), I don't see how I could fit more wheel under there as the tyre is 1/4 from the wheel well either side (285/40/17).

So personally I wouldn't bother with them.

Ignore the spring, it's not centred
Reply
Old Apr 17, 2013 | 08:33 AM
  #16  
Tom454's Avatar
Tom454
Le Mans Master
20 Year Member
 
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
Default

Relocating the brake cable tab is easy if you can weld and have access to welding equipment. Otherwise... not so simple. I can weld & have welding equipment... but I chose to "indulge" and bought the offsets just... because.
Reply

Get notified of new replies

To Off-set trailing arms !





All times are GMT -4. The time now is 01:09 PM.

story-0
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-1
2027 Corvette vs The World: Every Model vs Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-20 17:58:41


VIEW MORE
story-2
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-3
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-4
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-5
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-6
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-7
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-8
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-9
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE