Jump to content

TiresWill

AB7TW

Recommended Posts

AB7TW Enthusiast

AB7TW

Posted
Posted

Will 285/70R16 Fit on a 04 1500 4x4 ext cab with 3.73 gears .will the truck be a slug bug. will i have to put a lift in? keeeper

Shaners Senior Enthusiast

Shaners

Posted
Posted
Will 285/70R16 Fit on a 04 1500 4x4 ext cab with 3.73 gears .will the truck be a slug bug. will i have to put a lift in? keeeper

You'll notice a decrease in performance.

 

Most people here have put them on with just a little cranking of the torsion bars. Once in a rare while, there hase to be some minor trimming of the front air dam.

AB7TW Enthusiast

AB7TW

Posted
  • Author
Posted

by the way it is a 4.8 eng. will they rub when they are turned?what shocks should i use? This should lift the truck maybe 2" or more. will have to have my speedo readj'ed. Keeper

tryn2lrn Enthusiast

tryn2lrn

Posted
Posted

Well if you decide to recal the speedo I have a new hypertech III programmer that will do that for you. Email me I will sell it cheap, don't need it as I put stock tires on. Used once, well twice, changed tires programmed, took tires off and restored factory settings. Best of luck. :puke:

AB7TW Enthusiast

AB7TW

Posted
  • Author
Posted

Thank you,but i have to get the tires first. if 285's are to big how about 265/70R16. don't want to slow down this truck to much. but want some lift. Keeper :D

budhayes3 Senior Enthusiast

budhayes3

Posted
Posted

I have BF Goodrich 285/75R 16 All Terrains on my 99 with no problems. Speedo is fine too, followed my wife down the highway on cell phones checking our speedo readings...it was dead on. Oh yea, that tire is almost a 33, 32.9 to be exact. I have them on the factory wheels. If I knew how to post pics I'd show ya.

AZ-Z71 Enthusiast

AZ-Z71

Posted
Posted

Had the same set up on mine as well and they fit without lifting and trimming on my '99, althought I had the 5.3. Speedometer worked fine and may have been off maybe 1 to 2 mph, but here again I started out with 265 from the factory.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Latest Articles

  • Posts

    • newdude
      Transmission Temperature Hitting 220s

      By newdude · Posted

      It is working as designed.  NHT and non NHT trucks have the same exact transmission cooling setup.  NHT just gets a larger radiator.     The transmission cooler loop on these is as follows.     -Transmission out goes into an oil to water heat exchanger (item #1 in the first illustration below).  This exchanger has engine coolant opposite the transmission fluid and uses engine coolant to warm and then regulate the transmission fluid temperature when its in the operating window.   - From the cooler it goes to a thermal bypass valve (item #11 in the 2nd illustration below).  If the ATF has not reached the temp to open the bypass (194F), it loops back.   - When it reaches 194F, the thermostat opens and ATF then flows out to the oil to air auxiliary cooler (item #17 in the 2nd illustration) at the front of the truck.  From there it goes back to the transmission.     Your only fix would be to swap for the PPE thermal bypass delete block which will open the loop to the aux cooler all the time.  It will STILL run warm, probably 170-200F, but that's as low as you'll get it as its still flowing through the oil to water exchanger.      
    • Grumpy Bear
      Slate Electric Truck

      By Grumpy Bear · Posted

      Most say the oil temperature needs to above the boiling point of water to rid it of moisture and long enough to dry it. Many think that is about a hour at 212 F or more. Those people have never line dried cloths in a Midwest winter. Leave a pan of water sitting on the counter and eventually it all evaporates. So heat drives the time it takes. Water in oil under 175 F, the Nitration initiation temperature, is a minimum then for temperature and samples I've done that use Karl Fisher method say about a hour (in a healthy well tuned motor) over 175 F will dry it to under 800 ppm. Low enough to not be much of a factor. Motors with weak rings will take longer and the colder the air temperature the longer it takes.   On a cold motor there is also the condensation temperature. Blowby gases that contain moisture are subject to that cold cylinder wall, like sweat on a glass of ice tea. But also subject to the Law of Partial Pressures. Wear studies by GM and the DOD  indicate wear is a real issue below 85 F and a concern to 140 F but doesn't become a minimal factor until about 160 F. You know this intuitively when you see water vapor exit the exhaust pipe until the system gets above the dew point. It isn't magic, it's physics and it fascinates me. I know you didn't ask but....I over share sometimes. 😉    You keep the Camaro's high and tight.  
    • asilverblazer
      Slate Electric Truck

      By asilverblazer · Posted

      Move further away.   Benefit of living out - none of our cars get short cycled, plenty of warm up time.   Curious how much time/temperature it takes to drive moisture/condensation out of the engine?
    • diyer2
      Transmission Temperature Hitting 220s

      By diyer2 · Posted

      Switch a a 100% synthetic trans fluid, Amsoil works for me.
    • DustMcGrath
      Transmission Temperature Hitting 220s

      By DustMcGrath · Posted

      First of all sorry, I know there are a ton of transmission temperature threads...   My truck is a 2025 LZ0 High (10l89 10-speed) High Country with NHT max trailering package. The NHT package is supposed to have "enhanced cooling."   Normally the trans temp sits around 200. It seems like with any real stress it quickly jumps into the 220s (for example climbing a grade unloaded at lower speeds). I haven't towed much with this truck, but I'm concerned if it gets this hot unloaded.    I've tried a few different things to keep the temps down (tow/haul mode, sport mode, low range when that makes sense) and nothing seems to affect it.    I'm curious if others are the same behavior or if anyone has found techniques to keep the temps down. It seems like it just can't handle reduced airflow at lower speeds, even with relatively light loading.    Thanks!      

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...