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 sprinkles08 Your Own Question
sprinkles08, ASE Certified Technician
Category: Australia Car
Satisfied Customers: 23125
Experience:  ASE Master and Advanced level certified. Factory trained with 17 years dealership experience
Type Your Australia Car Question Here...
sprinkles08 is online now
A new question is answered every 9 seconds

I replaced my gearbox with a secondhand one put it all back

Customer Question

I replaced my gearbox with a secondhand one put it all back and aligned Drive shaft with marks on the two shafts now have vibration at 40 to 50 mph, I notice that on the universal yoke had two pairs of Marks on both sides chose the clearer pair and now have a the vibration. Could it be something else?
JA: What is the model of your '50 Mercedes?
Customer: W140 s320l 1998
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: Did it myself have a pit a accustom to working on cars
JA: Anything else you want the mechanic to know before I connect you?
Customer: Gearbox working smoothly as it should just a little vibration at those speeds as well as a bit of droning noise
Submitted: 1 year ago.
Category: Australia Car
Expert:  sprinkles08 replied 1 year ago.

Hello and welcome to JustAnswer!

The driveshaft is balanced as an assembly and isn't intended to be disassembled. It sounds as if you're disassembled the driveshaft and indexed it incorrectly.

Did you disassemble the driveshaft in the center at the carrier bearing?

Customer: replied 1 year ago.
The carrier bearing was not taken off the shaft however the rubber centre clamp did come off so maybe that is not quite right or the centre bearing has moved will check this weekend
Expert:  sprinkles08 replied 1 year ago.