I'm new to the forum and thought I would see if anybody could help figure this out. I have a 2001 Ranger 4x4 8.8 w/4.10 rear end and 3.0L . It currently has 245/75/16 (stock) and I am wanting to possibly run 285/75's. According to my measuring, mine are pretty much 30" stock and a 285 is a tad over 32". Would doing this hurt my automatic transmission? I figure since i have 4.10 rear I would be alright but curious if anybody has some words of advise. Other wise will probably go with 265's. Thanks!

 

it wont it hurt it at all

 

285's will be fine

 

Appreciate the reply! I was hoping not, but I sometimes over worry. I'm coming out of a 1992 Ranger that has 250,000 plus miles, so trying to keep this one as nice as possible(only has 90,000), but trying to do a few things to make it unique and a bit meaner looking.

 

Good to go, GO NAOW!

 

Anybody using under drive pulley?

 

only thing which is a good thing FOR ANY auto trans owner is to install a temp gauge to see what is going on with it. I think its why mine is lasting so long I try extremely hard to keep that thing cool by monitoring it. hell even in nice 90deg weather one day in TN going threw the hills the trans shot up well over 200deg it runs normally at 150-160. pulled over for a few min and let it cool down i was kinda hammering on it hard. but at least i knew it was doing that with a gauge.

285 really arnt anything to worry about I do have larger then you. but i would even still get one. heck even offroading you would be surprised how hot that dang thing can get

 

245's? My edge has 255's is that just an edge/tremor/4x4 thing?

 

x2

scangauge FTW, added it thru the x-gauge feature.

I'm usually around 148. I rarely get past 160

 

$160 at Autozone for scangauge 2. Part number SG2 apparently. What is install like on something like that? Difficult, or just a simple plug in?

 

I actually now have one as of yesterday. I added the Trans temp also threw X-gauge programming, But I also have a Auto meter Trans temp gauge mounted on my column so i guess i really dont need to monitor it on the Scangauge eh leaves that spot open for something else.



Plugs right into the OBDII port and you mount where ever you want it. I recommend the mirror mount but its up to you.

only hard part is adding the Program for the trans temp to it. not really hard at all if you follow the user guide, and make sure you spelled everything right

 

So the tranny already has the temp sensor in it, there's just no way to tell what it is w/o the program from the scangauge... or a shop telling you what it is. I might have to look into this. Thanks Zach.

 

I'm going to look into this as well, just to be on the safe side. And mine is just a XLT with off road package. I'm noticed the FX4's to have little bit bigger tires yet like Will B. mentioned. Not planning a lift, I hope to crank torsions up in front and add-a-leaf in the back for a few extra inches and then watch for rubbing.

 

Anything that is changed from OEM will create extra stress on the truck.
Larger tires will add extra load to the drivetrain, effectively reducing the final gear gear ratio, with the added weight of the tires will add an extra strain to the driveline.

i added 285x75x16 KM2 (33.2”) with my 4.10 gears I have to drive in third where I would have been in forth with the OEM 31” tires. On the Hy-Way I can feel the strain on the vehicle when I hit a hill at 65 and the truck slows to 55, where before the truck would pull the hill without slowing.
Does all of this constitute extra stress on the vehicle as well as the driveline, to me YES !

Good or Bad only time will tell.

If you find a problem in loss performance of the truck after changing the tires you will need to re-gear to get that performance back.

ltr

 

Sounds like 265's may be the way to go possibly. Hearing about tranny over working kinda scaring me a bit

 

My tranny temp today in 80 degree weather with a 20 foot ski boat and 33's it didn't get any hotter then 189 normal driving conditions its around 160

 

That makes me feel better! I do want to thank everybody for the advice, it's greatly appreciated! Hope to be getting some tires soon and my extra leafs and I will be sure to post some pics. You guys got some great looking rides also!

 

yea it will bother the trans if you hammer on it, stop and go traffic again hammering it, towing..ive burned going on 5 trans now in the 3-4yrs ive had this truck. temp gauge and a another cooler or atleast a bigger one, is what id recomend.

 

ya scrambler is being a tad dramatic. I have actual Height. 33.1x13.9 tires on my truck now. and yes I can tell a difference but it still can bark them and the truck has enough power to do anything doesnt need a regearing.

 

does that gauge also list in kilometers too