3.73 version 4. 10 rear

Discussion in 'Tow Vehicles, Hitch & Towing' started by vagov, Aug 25, 2016.

  1. skeetercampsintexas

    skeetercampsintexas Active Member

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    I have the second that the 2 valve 5.4 was a much better motor than the 3 valve, minus that whole blowing spark plugs out the heads thing [LOL] a little trick though to the stuck spark plugs in the 3 valve, and yall will all think I'm nuts, take them OUT with an impact. It'll rattle them right out of there. Obviously don't put them in with one.

    On the gear ratio thing I run 410s front and rear in my pickup and enjoy them thoroughly. Although my highway speed rims are higher I can tend to manage with the use of my chip. The right gears when towing can make all the difference in the world on how much the truck struggles to get up to speed.
     
  2. turborich

    turborich Active Member

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    Don't think you're nuts at all, make sure the engine is still warm as well. [2C]
     
  3. Rusty2192

    Rusty2192 Well-Known Member

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    I don't think the OP was suggesting changing the gears, rather choosing between trucks with different ratios from the factory. In that case, the rear end gearing can make a slight difference in towing capacity. Although it looks like on most '06 F-150s it is the same between the 3.73 and 4.10.
     
  4. rustybronco

    rustybronco Member

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    Ain't that the truth.

    I've often wondered how much better those -3V engines would be if the owners would have used a Motorcraft filter (or other premium filter) and Mobil 1 out of the gate? Not all of those issue are attributable to the design. Most owners have no clue what it takes to properly maintain a vehicle. "What do you mean I need to change my air filter?" :rolleyes:
     
  5. tenttrailer

    tenttrailer Art & Joyce - Columbus, O

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    I would go with 3:73 assuming the truck has 300 hp or greater. But I would drive the TV the rest of the year when not towing and would hate the MPG with the 4:11. Now it it was only going to be used as a TV I would go 4:11
     
  6. vagov

    vagov Well-Known Member

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    Went to look at the 06 with the 4.10. But declined the body was rough in spots, not looking for perfect. Undercarriage was bad
     
  7. sgip2000

    sgip2000 Member

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    I wouldn't be too concerned about a 4800 ft mountain.
     
  8. vagov

    vagov Well-Known Member

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    Thanks for the insight now I have at least some more insight and knowledge on what to look for it look out for as the hunt continues
     
  9. jumpoff

    jumpoff I'm in a camping state of mind

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    a 4800 ft mountain at a steep enough grade is going to be a challenge for any vehicle pulling a heavy enough trailer....
     
  10. jmcclung11

    jmcclung11 Active Member

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    Its not the size of the mountain...Its the % grade. There are some 8% and 10% grades for 2-3 miles in WV.

    Sent from my Samsung Galaxy SIII.
     
  11. Beecoach

    Beecoach Member

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    Exactly jmcclung11


    Sent from my iPad using Tapatalk
     
  12. tenttrailer

    tenttrailer Art & Joyce - Columbus, O

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    there are some 12% grades getting on to the BRP that will take you down to 1st gear if towing.
     
  13. jmcclung11

    jmcclung11 Active Member

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    Yep!

    Sent from my Samsung Galaxy SIII.
     
  14. Beecoach

    Beecoach Member

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    What is the BRP?


    Sent from my KYOCERA-E6560 using Tapatalk
     
  15. Beecoach

    Beecoach Member

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    Ah never mind figured it out

    Sent from my KYOCERA-E6560 using Tapatalk
     
  16. sgip2000

    sgip2000 Member

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    Happens all the time in the Rockies. Just gotta downshift and go slow.
     
  17. f5moab

    f5moab Retired from the Federal Government

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    Best answer yet....
    I have a 5.3L with six speed trans and 3.42 gears (towing package) and pulling my 3200 lb Popup with a tongue weight of 510 lbs has never given me a problem going up and down the 10% or higher grades (like Teton Pass at 8500 ft); nor does it cause a problem using the engine/trans to brake coming down. Same for I-70s, 6&7 percent grades to Eisenhower pass.

    Best is to match the engine/trans and drive gears for best of all driving modes.

    [​IMG]
     
  18. Jughed

    Jughed Member

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    I have a 4.10 and love it. My truck is 6200# to begin with, so the gearing helps a bunch.

    As for mountains - we've towed across the Rockies, Utah, AZ - up to 11,000 ft... the worst hill we climbed was the road up to Cheaha state park in Alabama. Only 2000'+/- at the top, but 16% grades in some places. Not a steady climb - short steep downhills followed by short steep climbs. You instantly go from taking care of your brakes to pulling hard up the incline. 4000+ rpm in 2nd gear...

    We went down the backside of Cheaha without the camper, probably with 1,500 of gear and people in the truck and my brakes were smoking at the bottom - and we were locked into low gear. Total elevation drop was about 1000'. This didn't happen coming down Pikes Peak with the same load - total elevation drop was 6,500'+/-.

    East Coast = short but steep climbs.
     
  19. Haybale

    Haybale I'd rather be camping!!

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    Did you ride your brakes down the entire grade in low gear?
     
  20. ScoobyDoo

    ScoobyDoo New Member

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    Yes, a 8% for a couple of miles will be tough, but if it starts at 4000 ft it will be much tougher then 4000 at top.
     

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