Need help selecting tires - want a larger than stock tire but

[hpc3]

don't want to sacrifice towing or streetability. I'm currently looking at BFG AT KOs in these two sizes (1) 305-65-17-E and (2) 315-70-17-D. Questions are:

Will the 305s be a big enough change in size from the stockers(which are BFG ATs 265-70-17-Es, like these for ride quality)? Want a larger tire, stockers look too small.

Do I need the E rating for the load on a 2500? I'll be towing a ~12-13K/lb trailer at some point and want to know if the D rating will suffice. Tongue weight will stay at ~2K/lbs max.

Will I have problems on the TPMS with the D rating(max psi=50 on these)?

Will the 315s be too wide for stock fenders? Don't want to throw rocks all the time. I live in SC so snow driving won't be a problem. Hwy and gravel road for the most part on the usage for these.

I plan on installing either KORE HP or similar spring leveling kit with Bilsteins at all four corners soon. Tires will be purchased around the same time.

Any help appreciated.

__________________
Thanks, Hal --> 2008 Inferno 2500 Laramie QC 4x4 CTD with Tow, Protection, Sunroof, Nav, etc... <-- ... some mods

[scottd53]

i have 315 stt's on factory 16's on my 2gen.. they ride great, quiet and im getting good mileage out of them.. they rubbed alittle on the control arms at full lock but thats all.. didn't really stick outside the fenders..till now i put 1.5inch spacers on..they stick out now but ooo well i like the look..

__________________
01 2500 auto w/Edge Comp, Edge Jammer 125hp nozzles, Super B Special, DTT TC and VB, FASS 150/150, 5in straight to black 6in turn-outs, 6in AMSOIL filter , 7in lift w/ 38x15.5 Baja Claws, Autometer Gauges... EGT,Boost,Fuel Pressure,Tranny Temp

[MikeyB]

Personally if you're going to be towing up to 13k lbs I would go with something smaller like a 285/70/17 and in a E rating.

MikeyB

__________________
'03 2500 QC SWB 2wd, 305/555, NV5600, 3.73 LS, Airbox mod w/Amsoil Ea, Adjustable boost elbow, PML diff cover, Westach boost/EGT gauge, Line-X, Sirius, Toyo OC AT 285/70/17 E, Daystar 1.5" lift, Monroe Reflex, Raptor RP100, Lazarsmith Intake, Smarty/Van Aaken C3.2

[mikeluna_17]

yes i would get an E rating FOR SURE..and yeah i would get 285s as well..thats exactly what im getting next week..im gettin 285/75/r16s...should get the job done for me...

__________________
98.5 24 valve cummins 4X4.LONG BED.NV4500. SMARTY tuned ECM..raptor waiting to be installed 4 " Straight Piped SOON TO BE 5" STRAIGHT PIPE..5" Tip..Silencer Ring GONE!!homemade CAI..headache rack "THE BEAST"

[ah64id]

Originally Posted by MikeyB

Personally if you're going to be towing up to 13k lbs I would go with something smaller like a 285/70/17 and in a E rating.

MikeyB

Exactly... which limits you to only a few tires.. I think Hankook makes one, as well as Toyo.

__________________

05 3500 QC LB NV5600 4X4 SRW
Pricol's (EGT, Boost, DP, FP, Oil)
Amsoiled, BMK-11
GDP MK-2+ w/ Cat 2 mic
Smarty Jr Revo

[DRT086.7]

If I were you towing the 13k Id go with the 305s theyll give you the bigger look you want and towing capactiy you need

__________________
08 6.7 6-spd man Quadcab 4x4 EGR all gone, Shibby Grid Heater+Stage 1 Intake horn, 5" SS TBE, AFE intake tube, Airaid, Edge, Diablo EPP, Pure Performance 4", SBC DD 3600, 35/12.50x18s on Jesse James Lawless8's, Recon cab lights 487hp/972tq

[strick69]

I just put a set of 305/60/18's on my truck, which is pretty close to the same as 305/65/17's. They definitely have a bigger look than stock, especially in width but just a little taller.

__________________
2004.5 2500 4x4, 48re

[Danderson]

I'd consider the Toyo AT's or Nitto Dura Grappler in 285-75-17 size. They are E-rated.

__________________
'07 2500 SLT,5.9,reg.cab.,G-56, 4wd,8' Northstar popup 24/7. Carli,Defiant,Kore,Lorenz and MADS.

[rvrcummins]

I have 315/70/17 on my o8 and I tow a 32ft 5th wheel toyhauler with these tires no problems I have used these tires on my 05 f250 carried some heavy loads never a problem as far as the tire presure monitors i went to dodge dealer where i bought it and they recalibrated my computer for free but the usally charge 45.00 the only reason they did not is I took them off my ford on trade in has been perfect for 6100 miles

[hpc3]

Thanks for all the feedback folks. I think the 305/65/17 is about as large as I'll go then. I haven't really found a wheel I have to have so I'll keep the stockers, not a big fan of the Laramie chrome skins but... they are easy to clean at least. Makes things easier on the TPMS stuff anyway. I'll have to start greasing the skids with my service center to recalibrate the speedo. They are not the easiest to work with mods on.

Good points from all the posts. Appreciate the help.

__________________
Thanks, Hal --> 2008 Inferno 2500 Laramie QC 4x4 CTD with Tow, Protection, Sunroof, Nav, etc... <-- ... some mods

[Deano1]

I'm runnin the BFG AT/KO 315/70/17 on my 04 and had no problems till the Kore recon upgrade. If your gonna do the Kore suspension, get a thuren or simular adjustable track bar and longer control arms (I went with Carli). For some reason I've found that if the front coil springs are not plum or completely vertical the BFG's will have to much bounce/give in the sidewall after break in and death wobble will occur. However, I hauled 1.93 ton of gravel in my bed so I'm sure I didn't help the tires any. Personally I won't put another set of BFG's on my truck. However, their are those that swear by them? By the way, the 315's did throw rocks up the side of the truck till I installed the dodge mud flaps.

[DRT086.7]

Oh hey in diesel power they put 305/60-18s? Dura grapplers on that black 08 that are E-rated and give you an idea of what they will look like.

__________________
08 6.7 6-spd man Quadcab 4x4 EGR all gone, Shibby Grid Heater+Stage 1 Intake horn, 5" SS TBE, AFE intake tube, Airaid, Edge, Diablo EPP, Pure Performance 4", SBC DD 3600, 35/12.50x18s on Jesse James Lawless8's, Recon cab lights 487hp/972tq