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35's and 3.42 gears

Discussion in 'The Garage' started by Chris87K5, Nov 7, 2002.

  1. Chris87K5

    Chris87K5 1/2 ton status

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    35\'s and 3.42 gears

    Is this a bad idea? I plan on getting a 4" lift soon and i want to run 35's but i wanna know if its gonna be a total dog or not. I probably wont have money for gears or anything for awhile. Will this be a mistake? /forums/images/graemlins/confused.gif
     
  2. backyardbuilt

    backyardbuilt 1/2 ton status

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    Re: 35\'s and 3.42 gears

    My buddies is set up like that and his runs good plenty of power his is a 90/91 nothing done to the motor.
     
  3. WakeBoard&4X4er

    WakeBoard&4X4er 1/2 ton status

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    Re: 35\'s and 3.42 gears

    it is ok, but i am looking to go to 4.1 ASAP,
     
  4. kennyw

    kennyw N9PHW Premium Member

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    Re: 35\'s and 3.42 gears

    That would be a good way to over work your 700R4. I temporarily have a 3.40 rear axle in my truck with 31's and it is a dog compared to the 3.73 I took out.
     
  5. Lance

    Lance 1/2 ton status

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    Re: 35\'s and 3.42 gears

    DO NOT RUN OVERDRIVE!! If you keep it in drive it will keep it closer to the engine's power band. Overdrive will keep it too low. If you drive the truck in overdrive with that set-up you had better start saving your pennies for a new transmission because you will need it.
     
  6. Michael

    Michael 1/2 ton status

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    Re: 35\'s and 3.42 gears

    I've been running 35s with a 3:08 for a couple of years now. I run it about 110 miles a day......doesn't bother me much, but I'm an old fart.
     
  7. 87sm465np208

    87sm465np208 1/2 ton status

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    Re: 35\'s and 3.42 gears

    yeap, im runn'n 33's on 3.08's, works fine for me, cept i have a sm465, hehe, i have all the low gearing i want to get me going, ferget the over drive, all its good for is high way driv'n, and as someone once said "real men dont care about gas mileage", but of corse im young, and i dont drive far to work, and i have an 87 chevy. /forums/images/graemlins/thumb.gif
     
  8. jc71355

    jc71355 1/2 ton status

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    Re: 35\'s and 3.42 gears

    I'm running 33's and 3.42's and It sux major. I wouldn't recommend running 35's. My engine bogs down so bad that I usually run her in 3rd and shift up when I know I have a LONG Flat stretch.
     
  9. st08x

    st08x Registered Member

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    Re: 35\'s and 3.42 gears

    i have 35's on my rig and it does fine... it was actually worse with 33's but they were swampers and heavy. to be honest i have no clue what my gear ratios are but its and 82 with a 3 speed transmission. i havent been able to find the gear ratio but its probably stock. i garuntee lower mileage though.
     
  10. jc71355

    jc71355 1/2 ton status

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    Re: 35\'s and 3.42 gears

    Yea you don't have overdrive. When the tranny goes into forth and the converter locks up it really lets the engine bog. Without overdrive it would be OK. I personally would still like to have a little more bottom end. My 72 w/the 4 speed has 3.08's and 33's and it does good until you get out of first /forums/images/graemlins/rolleyes.gif If it wasn't for the LOW first gear I don't see how it could be done.
     
  11. st08x

    st08x Registered Member

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    Re: 35\'s and 3.42 gears

    yea thats the nice thing about having a 3 speed but on the highway i can watch my gas gauge go down as fast as the people passing me
     
  12. Blazer1970

    Blazer1970 1/2 ton status

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    Re: 35\'s and 3.42 gears

    As others have said, it will be OK but you will not use overdrive AT ALL. You should think seriously about what you want to do in the future right now. Your best next step is to upgrade to 3/4 ton axles for the strength and lower gears, but if you buy 15" 35s right now, you will be screwed later on the 6 lug / 8 lug thing. It is much easier to go with 16 or 16.5 inch wheels and 8 lug when you go to the heavier axles.
     
  13. Pookster

    Pookster 1/2 ton status

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    Re: 35\'s and 3.42 gears

    I had 31's and 308's... man that was terrible. It even ate more fuel on the highway, and had problem staying in OD.

    I moved up to 33x12.5's and 373... that is acutally quite nice for the style of driving I do. Most of the time, Im in OD, cruising around 60. Fuel economy is acutally quite decent this way. Over 70, fuel economy drops significantly.

    On 35's, I except it to be a tad bit slower, but not really by much. My theory is that your radius only increased by 1.5", and maybe 10 lbs more rubber on the outter edge.

    Theres this wacky kid I've seen with some 2.42 or something in the mid two's, on a 12 bolt rear, and 37" tires. He has some super low first gear, but he beats the snot outta it. Might be why he's getting a new rear end. /forums/images/graemlins/smile.gif

    I've acutally flat towed my mustang in OD with 35" tires. Not terrible at all. THe real hilly areas would drop down to third and floord, would keep 70mph.
     

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