Gears & Axles Driveshafts | Rearends | Differentials | Gears | 12 Bolt | 9 Inch | Dana

Setting Pinon Angle

Thread Tools
 
Search this Thread
 
Old Jun 18, 2012 | 07:14 PM
  #1  
Egg1456's Avatar
Thread Starter
12 Second Club
iTrader: (2)
 
Joined: Sep 2009
Posts: 293
Likes: 0
From: Jefferson City MO
Default Setting Pinon Angle

Does anyone have instructions or a tutorial on setting pinion angle?
Reply
Old Jun 18, 2012 | 10:31 PM
  #2  
01ssreda4's Avatar
TECH Senior Member
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (96)
 
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
Default

Pretty sure BMR has one on their site.
Reply
Old Jun 19, 2012 | 08:54 AM
  #3  
onfire's Avatar
Coal Mining Director
iTrader: (17)
 
Joined: Nov 2001
Posts: 4,442
Likes: 0
From: Virginia
Default

http://www.rosslertrans.com/Pinion%20angle.htm
Reply
Old Jun 19, 2012 | 11:55 AM
  #4  
00camarossMV's Avatar
Staging Lane
15 Year Member
 
Joined: Jan 2007
Posts: 96
Likes: 0
From: Michigan
Default

I only drive my car on the street and what has worked best for me is setting the rear pinion yoke parallel to the output shaft of the trans. This has given me the least vibration at highway speeds. If you are drag racing, I would set the rear pinion 1 to 2 degrees down from parallel with the trans. Just my opinion though.
Reply
Old Jun 20, 2012 | 01:42 PM
  #5  
Egg1456's Avatar
Thread Starter
12 Second Club
iTrader: (2)
 
Joined: Sep 2009
Posts: 293
Likes: 0
From: Jefferson City MO
Default

Do you set the pinion with the rear suspension unloaded or while it is normally compressed?
Reply
Old Jun 20, 2012 | 03:01 PM
  #6  
00camarossMV's Avatar
Staging Lane
15 Year Member
 
Joined: Jan 2007
Posts: 96
Likes: 0
From: Michigan
Default

Set the pinion when the vehicle is compressed. A drive on lift works the best.
Reply
Old Jun 20, 2012 | 11:07 PM
  #7  
Ethan[ws6]'s Avatar
11 Second Club
iTrader: (13)
 
Joined: Jan 2009
Posts: 851
Likes: 2
From: Indianapolis, Indiana
Default

You want your u-joints to be at the same angle and in phase with one another for a street car.
Reply
Old Jun 22, 2012 | 10:56 AM
  #8  
gpr's Avatar
gpr
TECH Enthusiast
iTrader: (6)
 
Joined: Aug 2010
Posts: 584
Likes: 3
Default

Originally Posted by Ethan[ws6]
You want your u-joints to be at the same angle and in phase with one another for a street car.
So set the pinion angle to the same angle the transmission is at, is that correct?

I will finish installing my rear this weekend and don't want any vibrations. To eleminate how much a u-joint has to turn would it be bad to set the angle of the rear to the same angle of the drive shaft? in a car the drive shaft should be relatively level at ride height.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-5

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-6

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Jun 22, 2012 | 11:05 AM
  #9  
lees02WS6's Avatar
TECH Fanatic
iTrader: (5)
 
Joined: Mar 2004
Posts: 1,883
Likes: 282
From: Lansdale, PA
Default

Originally Posted by gpr
So set the pinion angle to the same angle the transmission is at, is that correct?

I will finish installing my rear this weekend and don't want any vibrations. To eleminate how much a u-joint has to turn would it be bad to set the angle of the rear to the same angle of the drive shaft? in a car the drive shaft should be relatively level at ride height.
Equal but opposite. If your transmission tail shaft is 3° down at its yoke, then the differential yoke should be 3° up. This is easier to do, i think, on a four post lift with the drive shaft off the car. Though I have leveled the car on bottle jacks, and had the drive shaft installed, and was still able to get the angles worked out.

This is more properly called getting your drive line angle. You need to know the angle of one side so you can set the other.
Reply




All times are GMT -5. The time now is 11:06 PM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE