what rear end ratio for new truck?

Discussion in 'Trucks and Trailers' started by MacLawnCo, Oct 13, 2003.

  1. MacLawnCo

    MacLawnCo LawnSite Bronze Member
    Posts: 1,847

    Im in the process of specking out a new truck, and dont know what rear end gear ratio would be ideal. Tranny will be 6 spd Ford manual. What do you suggest for light duty pulling...almost exclusively pulling a mowing trailer which will be 16' enclosed with 2 mowers. Truck may be used for plowing in the future (far off if ever) Thanks for the help. ;)
     
  2. Randy J

    Randy J LawnSite Bronze Member
    Posts: 1,124

    Depends a lot on the truck/engine choice. In a Dodge, with a Cummins engine, I think a 3:55 is best, unless you'll be doing a lot of heavy towing. Then 4:10 would be best.
    What trucks/engines are you considering?
    Randy
     
  3. 65hoss

    65hoss LawnSite Fanatic
    Posts: 6,360

    My new F250 has 3.73 gears in it. Seems to have plenty of pulling ability. Gas mileage isn't great, but not as bad as 4.10's would be.
     
  4. grassdaddy

    grassdaddy LawnSite Senior Member
    Posts: 565

    It would depend on which engine?And if its 4x4,what size tires I was planning on running.
     
  5. NYRookie

    NYRookie LawnSite Member
    Posts: 240

    I bought my GMC with a 4:10. It is rated to tow up to 2000 lbs more than the 3:73, 10,400 total. It also gets 12-14 mpg, better than my Dodge with nothing in tow. I would see what the total towing weight is you are going to be hauling. I have actually been getting better gas mileage with a heavier truck, bigger engine and lower geared rear end. Go figure.
     
  6. MacLawnCo

    MacLawnCo LawnSite Bronze Member
    Posts: 1,847

    thanks for helping me along so far.

    Truck in question is a '03 F350 srw 4x2 with 5.4 gas and the 6spd manual. As i said, trailer should amount to approximately 5000 pounds maybe? (16x7 enclosed, 2 wb mowers, not much else). it wont haul anything more than that but maybe twice a year. It will be primarily a mowing truck. Hope that helps you help me. hehe
     
  7. grassdaddy

    grassdaddy LawnSite Senior Member
    Posts: 565

    5.4 a 4.10, with 6cogs it'll still run a 100.-a 6.8 is just 600.00 more.A 3.73 would get a couple more mpg,unloaded,but in a gasser I like a 4.10..I'M going to be honest with ya--PUT a 1 ton ford under a load 5.4,6.8,3.73,4.10 it dont matter,you wont get 10mpg.SO get some motor and gear.OR spend 5more k and get a powerstroke.
     
  8. wriken

    wriken LawnSite Silver Member
    Posts: 2,154

    I have 3.73's also, brother has 4.10's in his, gets alot less fuel mileage then mine. But I cut out the muffler and put a airraid intake on mine. sounds great and helps with the towing power.
     
  9. lawn perfection

    lawn perfection LawnSite Senior Member
    Posts: 347

    If your going to be pulling alot get the 4:10's. if your concerned about gas get a powerstroke.
     
  10. wriken

    wriken LawnSite Silver Member
    Posts: 2,154

    thats the best thing to do, get a P/Ser, heck my enclosed trailer weighs more empty then most fully loaded.:)
     

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