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 Mike S. Your Own Question

Mike S.
Mike S., Chevy Mechanic
Category: Chevy
Satisfied Customers: 4789
Experience:  ASE Certified Master Technician
Type Your Chevy Question Here...
Mike S. is online now
A new question is answered every 9 seconds

1990 Chevy Blazer: rear end..the differential gears..assembly

Resolved Question:

The pinoin gear on my 1990 Chevy Blazer full size has broken teeth. I am needing to replace the rear end. How hard is it to pull the differential gears and just replace those, or is it better to pull the whole rear end assembly with the housing, axels and all. When I was a teenager, I remember I swapped the differential gears a few times on an old Ford I had, but I don't remember how.
Submitted: 3 years ago.
Category: Chevy
Expert:  Mike S. replied 3 years ago.

I think that would depend how if you wanted to install a salvage yard rear or just install the ping and pinion and the price of both and what available tools you have.

To R&R the entire axle assembly calls for 3.6 hours. The procedure is, click here.

To R&R the ring and pinion calls for 4.2 hours. That procedure, can be found here along with ring and pinion sets, http://www.drivetrain.com/parts_catalog/ring_and_pinions/#GeneralMotors

Ring and Pinion Installation Instructions can be found here, http://www.drivetrain.com/parts_catalog/ring_and_pinions/ring_and_pinion_installation_instructions.html

Here also, http://www.ringpinion.com/PartsList.aspx?SearchMode=Make&MakeID=3&ModelID=298&Side=Rear&DiffID=45&CatID=10

Looks like roughly $150-$300 for the ring and pinion set.

I called about a rear for my 1990 C1500 and they wanted $700 from a salvage yard for that so that should give you some idea of how much a salvage rear may cost.

If you need any diagrams, here.

http://www.compnine.com/index.php?t=1&year=1990&majorgroup=05&supplgroup=NULL&catcode=52R&modelcode=V&makecode=LC&grouptype=B&modelid=6501&uid=1

Plus they have parts as well.

So does, http://www.gm-partscenter.com/partlocator/index.cfm?siteid=215875

Here, too http://www.gmpartsgiant.com/

 

Expert:  Mike S. replied 3 years ago.
Expert:  Mike S. replied 3 years ago.

Actually, I found some complete rear axles starting at about $100.

http://www.mypartshop.com/EOL_PublicSearchResults.aspx

Over 500 results found.

Here, this is the home page put in your zipcode.

http://www.mypartshop.com/default.aspx

Customer: replied 3 years ago.
From the instructional link, it looks like more than just pulling a complete differential unit out and putting a replacement unit in. Seems like (many years ago) on a 68 Ford i had, I was able to pull the axels and then pull the whole differential gear assembly as a unit and put a replacement one in, then slide the axels back in, fairly easily without really setting up tollerances and stuff. is that not the case with a Chevy truck rear end?
Expert:  Mike S. replied 3 years ago.
No it's not. Plus, if you had a broken tooth chances are the tooth may have gotten chewed up and there may quite possibly be other damage as well. Have you put in your zip code in that search box and tried to locate a used rear assembly? I think you should just go with the whole rear instead of a ring and pinion R&R. Not to mention you would probably need a dial indicator and some other special tools.
Customer: replied 3 years ago.
Got it. Where do i put the zip code in to find the part?
Expert:  Mike S. replied 3 years ago.

At the bottom where it says Postal Code :

http://www.mypartshop.com/default.aspx

Mike S., Chevy Mechanic
Category: Chevy
Satisfied Customers: 4789
Experience: ASE Certified Master Technician
Mike S. and 11 other Chevy 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 was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money. Todd L Rochester NY
< Last | Next >
  • I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money. Todd L Rochester NY
  • 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
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
  • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland
 
 
 

Meet The Experts:

 
 
 
  • Tim's Auto Repair's Avatar

    Tim's Auto Repair

    mechanic

    Satisfied Customers:

    7497
    Have owned a repair shop for 25 yrs.
< Last | Next >
  • http://ww2.justanswer.com/uploads/TI/tim37857/2011-10-28_23053_S6301814.64x64.JPG Tim's Auto Repair's Avatar

    Tim's Auto Repair

    mechanic

    Satisfied Customers:

    7497
    Have owned a repair shop for 25 yrs.
  • http://ww2.justanswer.com/uploads/DT/dt69nova/2012-6-15_234154_pic1.64x64.jpg Dave Nova's Avatar

    Dave Nova

    Chevrolet Technician

    Satisfied Customers:

    6863
    ASE Master Certification. GM World Class Certification
  • http://ww2.justanswer.com/uploads/ggrote1/2009-06-27_031011_me.jpg Gary's Avatar

    Gary

    Chevy Technician

    Satisfied Customers:

    4944
    15 years GM master tech
  • http://ww2.justanswer.com/uploads/testedtuff/2009-09-26_170108_pictures.jpg John's Avatar

    John

    Master A.S.E Automotive technician

    Satisfied Customers:

    4071
    A.S.E MasterTechnician A1-A8 w/L1,38 years experience General Motors Master Technician
  • http://ww2.justanswer.com/uploads/RO/rodcuda/2011-7-25_224114_Donhoff1.64x64.JPG Neal's Avatar

    Neal

    Chevy Mechanic

    Satisfied Customers:

    2306
    Shop Owner and Mechanic on multiple makes.
  • http://ww2.justanswer.com/uploads/goodwrench9124/2008-11-09_220838_dscf0007.jpg goodwrench9124's Avatar

    goodwrench9124

    ASE Certified Technician

    Satisfied Customers:

    2041
    Ase Master Certified, GM Master Certified Tech. Awarded GM Top performer, Hybrid certified
  • http://ww2.justanswer.com/uploads/DR/drivefast1971/2012-1-12_172422_0009051tQKh.64x64.jpg Ron Z.'s Avatar

    Ron Z.

    - Chevy Tech -

    Satisfied Customers:

    1813
    18+yrs experience. State Inspector and Chevy Diagnostics