hey guys, i have a 99 sport 5sp 4x4 that i believe has a lift kit on it and the bars cranked. i am looking at getting new tires. currently i believe i have p235 but i am not sure. they dont say on them. when i had a flat the other day i discovered that the spare tire that came with it when i bought it used a few months ago was a p265. it looks as if it will fit just fine. i have a few questions.... if i purchase p265 will i need new rims? also how much does it cost to recalibrate the spedometer and such? will bigger tires effect my mpg? any info or experiences would help greatly. thanks

 

do you know if it a suspension lift kit or body lift kit? it doesnt make a difference witht he questions you are asking, i am just curious. what size wheels do you currently have? if you are running stock 15 or 16" wheels, i dont see why you would have a problem with the 265's. to recalibrate, the best way of going about it would be to purchase a Superchips programmer. they are not cheap but you can not only recalibrate, you can gain power/torque, and you can uncode are clear check engine codes among other things. your mpg will drop, but not too significantly with 265's, maybe 1-4 mpg. i have 33" t/a ko bfg's on my dakota and i have lost about 3-4 mpg.

 

Are you running factory rims and are they 7" or 8" wide?

 

he should be fine with 265's with either sized wheel; 15x7 or 15x8

 

Just put Wrangler SilentArmor on my 01 Spt 4x4, P265/70-16's. All I can say is just do it. Well chosen -did you get that- big tires will improve ride quality, while the weight and aerodynamics of the bigger tire will increase fuel consumption the larger diameter tire will decrease steady state fuel consumption where most of us spend our time and put less wear in the drivetrain due to reduced rpm. Make sure you go with a good quality tire, cheap tires don't show how cheap they are until it is too late like when they are needed to make and emergency lane change, or brake to avoid hitting something. Only a MORON puts other peoples life in danger when driving mudders on the road (right up their with the schmuks that run slicks on the street), real off-road experts know this (compoud has more to do with traction than tread design) and anyone who argues different well I already told you what they are..

01' Dak Spt 4x4 QC stick (the COPO Dodge only has air, sport and tralier package)

 

i don't run mudders or slicks and i aint doubt'n you, but if i was in hydro plaining weather, i'd rather have mudders than slicks, no matter what the compound. but thats me. am i idoit wrong or idiot right?

 

No No he said moron and schmuks........but whens some has that kind of an opinion I tend the look at the source hehe

 

this is true that the tires will be moving at a slower rpm. however, when moving to substaintialy larger tires, it is recommended that you regear the rear differential. using stock rear dif gearing with larger tires will put a greater strain on your driveshaft and rear axle. just something to keep in mind.

 

Yo man not too good of an idea for either slicks or M/T. The M/T's are horrible in wet and icy conditions. I have a buddy that had to run them on the way home from wheeling in the rain and let me just tell you he was going very very slow to keep it safely under control. His jeep is in my gallery it is the one flexing on the lightpost.

 

i decided to bring this post back, hoping that someone would tell me their experiences. I have a 99 4x4 5 sp. 3.9 L with a suspension lift (i believe it is 3 ", plus the torsion bars were cranked when i got it, i cranked them back down slightly for a better ride hopefully) I know the 265 will fit because when i bought the truck 6 months ago, the "spare" tire was p265, and i believe the current ones are p235. Has anyone put bigger tires on a v6? will it hurt my gas mileage considerably, and will it make my already underpowered v6 work even harder or perhaps even break it? also how much does it cost to get the computer recalibrated?