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 Canuck Tech Your Own Question

Canuck Tech
Canuck Tech, Auto Service Technician
Category: Car
Satisfied Customers: 524
Experience:  Red Seal Journeyman Technician, 20 Years experience
57969284
Type Your Car Question Here...
Canuck Tech is online now
A new question is answered every 9 seconds

Chevrolet C-10 4x4: I have a 1972 Chevy, 350 V8, 3/4 ton, long

Resolved Question:

I have a 1972 Chevy, 350 V8, 3/4 ton, long wheel base, 4WD, Manual 4 speed Transmission that is in excellent condition. I have been thinking of converting the truck from Manual to Automatic Transmission. Would you please advise what problems I might encounter in doing this type of conversion. What automatic transmission would you recommend? What are the major modifications I would need to expect?
Submitted: 1 year ago.
Category: Car
Expert:  Canuck Tech replied 1 year ago.
Hi there - this is a do-able conversion, and I can point out some of the high and low points. I guess part of it depends upon how stock you want the truck to look. If you want it to look stock, you will need to source a correct steering column for the column shifter for the automatic transmission. Linkage will need to come from the same donor vehicle. Unless the engine has bee modified, a turbo 350 would work fine, but a turbo 400 is stronger, but heavier. The wreckers used to have a book called the Hollander interchange manual, which may prove helpful for finding bits and pieces. Worth noting, if value of the truck is important, it is worth more with the manual transmission. I would also want a brake pedal assembly from an automatic transmission truck, because the little pedal looks goofy with an automatic. I'll be able to give you a few more details later in the day
Canuck Tech, Auto Service Technician
Category: Car
Satisfied Customers: 524
Experience: Red Seal Journeyman Technician, 20 Years experience
Canuck Tech and 11 other Car Specialists are ready to help you
Customer: replied 1 year ago.
What about the gearing of the rear differential ? Will that need to be changed out?
Expert:  Canuck Tech replied 1 year ago.
You will need an automatic flexplate versus the clutch, pressure plate and release bearing. I guess part of the deal depends upon your intended use. If you are wanting to go off road, then maybe consider a 4 speed automatic, but then the swap gets slightly more complicated depending upon the year of the transmission you choose. I don't see any reason to change the final gearing, as you are looking at front and rear diffs with a 4X4.
Canuck Tech, Auto Service Technician
Category: Car
Satisfied Customers: 524
Experience: Red Seal Journeyman Technician, 20 Years experience
Canuck Tech and 11 other Car Specialists are ready to help you
Expert:  Canuck Tech replied 1 year ago.
A 4 speed automatic would give you a low first gear, and an overdrive. The problem then become the column shifter, although some have modified a three speed auto column to work - I haven't seen plans, though
Canuck Tech, Auto Service Technician
Category: Car
Satisfied Customers: 524
Experience: Red Seal Journeyman Technician, 20 Years experience
Canuck Tech and 11 other Car Specialists are ready to help you
Expert:  Canuck Tech replied 1 year ago.
Hi there - did you have any more questions?

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 would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
< Last | Next >
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
  • used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future. David L. Richmond, TX
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil Marysville, CA
  • Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible. Charles Walnut Creek, CA
  • As a single woman, I really appreciate an excellent and affordable opinion.
    Thank you Geordie, I will not hesitate to contact justanswer in the future!
    Sue Charleston, WV
  • Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff. Jim Castleberry, FL
  • Excellent reply, and also very quick. Really sounds like the Expert knows what he is talking about. I will be back to use your service when I need more help with my RV. Dutch USA
 
 
 

Meet The Experts:

 
 
 
  • Chris (aka-Moose)

    Technician

    Satisfied Customers:

    846
    16 years of experience
< Last | Next >
  • http://ww2.justanswer.com/uploads/MU/muddyford/2012-6-13_1204_1.64x64.png Chris (aka-Moose)'s Avatar

    Chris (aka-Moose)

    Technician

    Satisfied Customers:

    846
    16 years of experience
  • http://ww2.justanswer.com/uploads/TE/TedG/2012-6-15_14759_avaLarge.64x64.jpg Ted G.'s Avatar

    Ted G.

    ASE Certified Technician

    Satisfied Customers:

    1596
    20 years auto repair experience, ASE Master Tech, Mechanical Failure consultant, Expert Witness
  • http://ww2.justanswer.com/uploads/joecamel90/2008-11-13_03615_head_shot.jpg George H.'s Avatar

    George H.

    ASE Certified Technician

    Satisfied Customers:

    1311
    ASE Master Tech 15+ yrs, AAS Automotive Technology, Factory trained Asian specialist
  • http://ww2.justanswer.com/uploads/AM/amedee/2013-10-24_23656_Amedee1.64x64.jpg Amedee's Avatar

    Amedee

    ASE Master Tech

    Satisfied Customers:

    2367
    ASE Master Tech advanced level specialist
  • http://ww2.justanswer.com/uploads/SU/supermechanic/2013-8-23_03546_500.64x64.jpg Jerry's Avatar

    Jerry

    Master Mechanic

    Satisfied Customers:

    1906
    ASE master, 30+ years. All makes and models. Trouble shooter, shop forman, service manager
  • http://ww2.justanswer.com/uploads/CR/crzydrvr00/2013-11-3_12123_246347.64x64.jpg Richard's Avatar

    Richard

    ASE Certified Technician

    Satisfied Customers:

    942
    12 years Ford Lincoln/Mercury Jaguar dealership as a technician and shop foreman reparing all makes
  • http://ww2.justanswer.com/uploads/ST/Steve7654/2012-6-5_215929_japic800x660.64x64.jpg Steve's Avatar

    Steve

    Auto Service Technician

    Satisfied Customers:

    1980
    25+ yrs experience as a professional working technician; ASE L1 master technician