255/85's on Fullsize trucks. Pics please

[docb14]

Thanks for the info guys. I have been looking at all the options listed and all the help is much appreciated. Those swampers look great but a little too much for my daily driver needs. I had a set of buckshot mudders in 285 70 r 17 prior to my kelly tires. Loved them but they got "out of round" with still decent tread left. I was good about rotating also. Had about 30,000 miles on them so i think i did ok with them. Needed new tires especially after the lift was put on anyway. Got bit by the "practical" bug and got a set of less aggressive tires as i am unfortunately on the road more than off. The drop in road noise was incredible. Didn't realize how loud the buckies were till they were off. If anybody is looking for a good AT tire that is surprisingly good off road, check out the kelly TSR. And no I do not work for kelly tire or any of their affiliates. Thanks for the help.

 

[FellowTraveler]

RPM drop

JoshG, 3.0" equates to 1.5" +- difference rim to road and will drop rpm (s) some. If you have O/D then your rpm (s) w/255/85/16 would drop to 2,188 +- no O/D then add 25% to rpm (s).

IMHO, ideal rpm for diesel diesel 1,800 to 2,100 +- at highway speeds and make for a good all around diesel powered rig.

If you go w/3.42 and stock sized tires then you will have a people mover unless you are putting out higher than stock HP/TQ. You can expect mpg (s) to go in the crapper with larger than stock sized tires. Consider, GM 6.2 likes twin turbos, Banks has some power/torque products too.

 

[JoshG]

I agree that ideal diesel rpm's are 1,800...with 4.10 gears it just isn't going to happen.

So you really think going from 245/75r16 to 255/85r16 will make my mpg worse? Even when I am reducing the rpm's over 200?

I doubt I would ever go down to 3.42 gears as I do occassionally pull a trailer and I like to be able to go off-road, so I would really like to keep the 4.10 gears...although 3.73 is an option.

My truck's engine is a 6.2 block and heads with all the stuff from a 98 6.5TD on it and a 4L80e transmission.

 

[24HOURSOFNEVADA]

From my build thread. BFG KM2's, 255/85r16

 

[zack05]

Here is my old and gone '91 F-250 near Faucherie Lake, Sierra Nevada

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[98GP]

255/80/17 BFG KM2 on my junk

Tell me about those wheels.

 

[Mark Harley]

Look like Newer factory Dodge wheels.

 

[pulltilbroke]

Yep, just a set of 3rd gen wheels

 

[Black Dog]

This was full sized in 1956

Truxus MT 255-85R16 The All Year Northern Tire!!

How well does that work for real wet heavy snow without any weight in the back? Do you ever spin out? Old Willy's don't weight much.

 

[Erik N]

M-55's

 

[Mark Harley]

I run 235-85-16 BFG commercial traction in the winter and 235-85-16 Hankooks in the summer.
Next replacement time I am up sizing to 255-85-16's plenty of room with 4" of lift.

 

[98GP]

255/85 On Excursion\99-04 F250 (pics?)

I purchased an Excursion last month and it is in need of new tires. I like the look of the Toyo MT in the 255/85-16. Does any one have them on factory wheels, non lifted Excursion or 1999-2004 F250? I need a good visiual of then installed becasue I am affraid they will look to much like bicycle tires under my land yacht.

BFG KM2 will be acceptable too...

 

[bjm206]

I have 2 out of 3...Excursion and M55s, but the truck is lifted 3.5".



Hope this helps a little. They look small with the lift but work well on and off pavement.

 

[Erik N]

I just bought a '96 Burban 454 4x4 2500 w/ 285 "chopper" mud tires. I guess they will work in the sand but they rub the fenders. And they look gay.

Contrast w/ my '88 Burban V20 4x4 w/ 255's. More utilitarian oriented. They match the truck perfectly, see post #100, and this thread:
http://www.expeditionportal.com/forum/threads/7861-Toyo-M-55?p=1171020#post1171020

 

[98GP]

Thanks for the replys.

Erik N, Ive seen your Sub before on another thread. Nice rig.

BJM206, See PM...

Got more pictures...Anybody...