How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Neal Your Own Question

Neal
Neal, Dodge Mechanic
Category: Dodge
Satisfied Customers: 8337
Experience:  30 years experience in Dodge Chrysler and Plymouth
17294534
Type Your Dodge Question Here...
Neal is online now
A new question is answered every 9 seconds

2006 Dodge Charger SRT8: acceleration..vibration..a hill in neutral I

Resolved Question:

I have a 2006 Dodge Charger SRT8 with 160k miles on it. When I acceleration over 40 mph it has a major vibration throughout the car until I let off the gas. If I coast down a hill in neutral I have no vibration at all at high speeds. When I jack up the rear end of the car I have slight up and down movement but not side to side. So I just replaced both rear wheel hubs and it still has the vibration. I also noticed a few cracks in the rubber unit that connects the drive shaft to the rear end. What else do you think it might be and how can I test to see if it's bad or not?
Submitted: 3 years ago.
Category: Dodge
Expert:  Neal replied 3 years ago.

Welcome to JustAnswer, I'm Neal and I am here to assist you.

Please feel free to ask follow up questions, it is part of the process.

 

First here is some Important info on the propeller shaft so we can be on the same page as far as terms.

 

SHAFT-PROPELLER
DESCRIPTION
REAR

WARNING: Due to propeller shaft imbalance concerns, rear propeller shaft service is limited to center support bearing and coupler replacement only. The rear segment single-cardan universal joint is not serviceable.
graphic


Both RWD and AWD models utilize a two-piece rear propeller shaft design to transmit torque to the rear axle assembly. This two-piece design consists of:
^ Front and rear shaft segments
^ Center support bearing/bracket assembly
^ Single-Cardan u-joint at rear segment/bearing interface
^ Rubber couplers at transmission and rear axle flanges
^ Fore-mounted vibration damper (V6 Models)

The front shaft segment is designed with a collapsing feature, consisting of two concentric tubes secured by shear pins. This feature allows the tubes to telescope up to 200 mm (8 inch) during certain impacts.

The flexible rubber couplers at the transmission and axle flanges absorb vibration. The low-travel Single-Cardan universal joint permits the minimal axial and angular variations that occur with independent rear suspension.

Additionally, models equipped with the V6 engine utilize a vibration damper which is designed to absorb and isolate driveline vibrations and harmonics. This damper is mounted to the front segment, sandwiched between the coupler and propeller shaft.

Customer: replied 3 years ago.

I will jack up the car and check all of this out.

Customer: replied 3 years ago.

Looks like I have up and down play where the bearing bracket is. Also I can twist the drive shaft about a 1/4 inch at the transmisson.

 

Could the bearing bracket cause the vibiration?

Expert:  Neal replied 3 years ago.

The play in the trans as far as rotating the shaft is normal.

 

The play at the bearing/ bracket should be the issue. Imagine that moving up and down under a load as the driveshaft turns.

Neal, Dodge Mechanic
Category: Dodge
Satisfied Customers: 8337
Experience: 30 years experience in Dodge Chrysler and Plymouth
Neal and 10 other Dodge Specialists are ready to help you
Customer: replied 3 years ago.

I will replace it and give it a try!

 

Thanks

Customer: replied 3 years ago.
Looks like I have a tear in one of the boots on the half shaft that goes into the deferential. Is there a way to see if the half shaft is bad?
Expert:  Neal replied 3 years ago.
Just manually feeling for play, If there is still grease in there and no dirt they are usually fine.
Neal, Dodge Mechanic
Category: Dodge
Satisfied Customers: 8337
Experience: 30 years experience in Dodge Chrysler and Plymouth
Neal and 10 other Dodge Specialists are ready to help you

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • I AM VERY GLAD THAT I TOOK A CHANCE ON YOUR PROBLEM SOLVING SKILLS. I WAS SUCCESSFUL IN REPLACING THE FUEL PUMP. MY TRUCK RUNS LIKE A CLOCK. IT RUNS LIKE THE DAY I BOUGHT IT. NO LUNGING FORWARD, THE TURBO REACTS THE SECOND I STOMP ON THE GAS, AND IT HAS A LOT MORE POWER AND EVEN SOUNDS BETTER TO ME. IT SAVED ABOUT $500.00 BY DOING THE WORK MYSELF. I GIVE YOU ALL THE CREDIT FOR YOUR DIAGNOSING THE PROBLEM, JUST FROM THE SYMPTONS I GAVE YOU OVER THE e MAIL. I WILL USE YOUR WEB SITE AGAIN AND REFER MY FRIENDS. THANKS SO MUCH FOR THE HELP. TOM WHITTAKER USA
< Last | Next >
  • I AM VERY GLAD THAT I TOOK A CHANCE ON YOUR PROBLEM SOLVING SKILLS. I WAS SUCCESSFUL IN REPLACING THE FUEL PUMP. MY TRUCK RUNS LIKE A CLOCK. IT RUNS LIKE THE DAY I BOUGHT IT. NO LUNGING FORWARD, THE TURBO REACTS THE SECOND I STOMP ON THE GAS, AND IT HAS A LOT MORE POWER AND EVEN SOUNDS BETTER TO ME. IT SAVED ABOUT $500.00 BY DOING THE WORK MYSELF. I GIVE YOU ALL THE CREDIT FOR YOUR DIAGNOSING THE PROBLEM, JUST FROM THE SYMPTONS I GAVE YOU OVER THE e MAIL. I WILL USE YOUR WEB SITE AGAIN AND REFER MY FRIENDS. THANKS SO MUCH FOR THE HELP. TOM WHITTAKER USA
  • Just a quick line to tell you how pleased I am to have my brakes working properly after all this time. Your answer was what I needed. I would certainly recommend you highly. God bless! Rev. Jerry Baysinger Holts Summit, Mo
  • I recently asked a question about my 2005 dodge ram, and I just wanted to let my Expert know that he hit the nail squarely on the head with his answer. I wanted to thank him again. Greg Pittsburgh, PA
  • Just a quick line to tell you how pleased I am to have my brakes working properly after all this time. Your answer was what I needed. I would certainly recommend you highly. God bless! Jerry Holts Summit, MO
  • I was skeptical at first but thought I'd give it a try. I was pleasantly surprised. Your site actually is a quality service that I would recommend to others in a heartbeat. Stan Sayre, PA
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
 
 
 

Meet The Experts:

 
 
 
  • Jerry

    Master Mechanic

    Satisfied Customers:

    1227
    ASE Master tech, 30 years exp. troubleshooter, driveability tech
< Last | Next >
  • http://ww2.justanswer.com/uploads/SU/supermechanic/2013-8-23_03546_500.64x64.jpg Jerry's Avatar

    Jerry

    Master Mechanic

    Satisfied Customers:

    1227
    ASE Master tech, 30 years exp. troubleshooter, driveability tech
  • http://ww2.justanswer.com/uploads/MO/MoparCertified/2012-6-7_4142_mechanic.64x64.jpg Mopar Certified's Avatar

    Mopar Certified

    Dodge Technician

    Satisfied Customers:

    5813
    24 Year Chrysler/Dodge Certified Specialist
  • http://ww2.justanswer.com/uploads/jeep10000/2008-9-18_222938_192601.jpg Chris's Avatar

    Chris

    Shop Foreman

    Satisfied Customers:

    4041
    ASE and Chrysler Certified Master Tech
  • http://ww2.justanswer.com/uploads/ke4ich/2009-08-12_212931_DSC02211.JPG moparfl's Avatar

    moparfl

    ASE Certified Technician

    Satisfied Customers:

    3285
    ASE Master Tech Gold level Chrysler Status 30 years dealership exp
  • http://ww2.justanswer.com/uploads/DO/dodgerench/2012-8-1_1142_IMG3173.64x64.JPG Dodgerench's Avatar

    Dodgerench

    ASE Certified Technician

    Satisfied Customers:

    2480
    30+ years Dodge/Chrysler exp., ASE Master with L1 certification. Driveability/ combustion specialist
  • http://ww2.justanswer.com/uploads/RO/rodcuda/2011-7-25_224114_Donhoff1.64x64.JPG Neal's Avatar

    Neal

    Dodge Mechanic

    Satisfied Customers:

    1870
    30 years experience in Dodge Chrysler and Plymouth
  • http://ww2.justanswer.com/uploads/tsmodie/2009-6-10_144056_tim.jpg Tim Mohr's Avatar

    Tim Mohr

    ASE MASTER TECH

    Satisfied Customers:

    1664
    30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL
 
 
 
Chat Now With A Dodge Mechanic
Neal
Neal
Dodge Mechanic
8337 Satisfied Customers
30 years experience in Dodge Chrysler and Plymouth