285/75 r16 on 99 2500 4x4

[jeepma...@my-deja.com]

I finally had the BFG AT KO 285/75 R16 installed on my Dodge Ram.
Instead of using the stock rims, I am using American Racing AR767 rims.
They are black painted steel rims. My truck is the forest green. It
looks alot different with the black rims compared to the chrome rims.

Anyway, while a larger tire may fit. I don't recommend it because of
the spare. There was just barely enough room to fit the 285/75 spare in
the stock location.

My speedometer is off by 7.2% now, so I will have to have it corrected.

Sent via Deja.com http://www.deja.com/
Before you buy.

[PT]

Has anyone tried 295/75r16's on the same vehicle?
Paul

[rsrey...@freewwweb.com]

In article <3810f8d5...@news.flash.net>,

pu...@flash.net (PT) wrote:
> Has anyone tried 295/75r16's on the same vehicle?
> Paul
>
>

Put BFG All Terrain T/A 295/75R16 on '96 2500 4x4 (stock rims)last week
with no scrubbing. Truck rides pretty good but gas mileage took a
beating...

[PT]

What engine do you have? I have Cummins so I hope it wouldn't affect
me much.

[Steve St.Laurent]

I also have cummins and my mileage actually got a little better (~.25 mpg)
with 285/75R16 BFG AT KO's over the stock tires. For the guy that the gas
mileage took a dump, did you adjust your speedo or take that into account
with your mpg figures. On my truck you have to add 10% to whatever you
calculate as I didn't adjust my speedo.

-Steve St.Laurent
'98 Quad Cab Long Bed (CMNSPWR), 4x4, ISB, 5sp, 4.10 LSD, Prime-loc remote
fuel filter,
boost & pyro gauges, TST Powermax, Permatech spray in liner, Grizzly
stainless nerf bars,
BFG 285/75R16 AT KO's
http://my.voyager.net/stevest

rsrey...@freewwweb.com wrote in message <7urvn3$d9h$1...@nnrp1.deja.com>...

[preston kline]

i put 285/75/16 desert duelers best tires i ever bought.
Steve St.Laurent wrote in message <3811b7bc$0$70...@news.voyager.net>...

[rsrey...@freewwweb.com]

In article <3811ae9...@news.flash.net>,

pu...@flash.net (PT) wrote:
>
> What engine do you have? I have Cummins so I hope it wouldn't affect
> me much.
>
>

360ci gasoline. May not make a difference for the diesel. The only
reason I really notice it is I'll drive the truck to work once in
awhile (160 miles) and it's hard not to notice.

[jeepma...@my-deja.com]

If your truck was calibrated with 245/75 r16 and you put 285/75 r16's
your speedometer/odometer will be off by (low) 7.2%. Example: 10.0 mpg
would be 10.7 mpg.

I have noticed a marginal increase in gas mileage, about .5 mpg better.
Only short road trips so far.

[Andrew]

Since the new 2500's with SLT/4x4 come with 265/75/16's, does that mean they
are calibrated for that tire, or that you already start with your speedometer
off?

Andrew

[rsrey...@freewwweb.com]

In article <7v1it7$if$1...@nnrp1.deja.com>,

Not sure if you were replying to me or not jeepman... If you are
talking to me, I appreciate the info. Haven't crunched the numbers yet
myself but took into account speedometer/odometer difference (I figured
roughly 8% for 245/295 difference). Was judging mileage on how many
trips to work and back I could make before refueling. I think my
mileage may be due to air pressure. Dealer had 38 lbs in them. I
bumped them up to 50 just to see how that works.

[jeepma...@my-deja.com]

FYI,
I am still testing tire pressures. Each tire will hold 3300lbs (BFG AT
KO 285/75 R16 at 65 psi). 3300 x 4 = 13,200. My truck does not weigh
that much unloaded, less than half that. So, in theory, I should be
able to run about 32 to 33 psi in each tire. I need to figure the front
and rear air pressures out.

Currently, I am running 40 lbs in front and 35 in the rear, but I think
that is to much pressure.

Take care.

[rsrey...@freewwweb.com]

In article <7v445r$rgl$1...@nnrp1.deja.com>,

Might be my imagination, but after I put 50 lbs in mine the
truck 'felt' like there was less friction. Not sure about the mileage
figures yet - maybe today. I'm looking for max mileage/treadwear.

[rsrey...@freewwweb.com]

In article <19991025193619...@ng-cf1.aol.com>,

I would assume they have the right adapter/gear thingy installed. I
also assume that the setup is the same as the older trucks with the
speedo going into the correction gear doohickey at the transfer case
(Pardon my technical lingo - I work on airplanes). If you want to be
sure I guess you can check the odometer against mile markers or just
get somebody whose speedometer should be right and get them to pace you.

rsrey...@tds.net

[jeepma...@my-deja.com]

I'm looking for a better ride without compromise load capacity of the
truck. I only drive 30 miles round trip to work. However, when I tow
my jeep/trailer combo, I will increase air pressure accordingly.

I suppose if I had a longer commute over nice even pavement, I would
boost my pressure up also.

Take care.

[mada_...@yahoo.com]

97 1500 SLT 2wd 3.55open rear 360 auto 28K miles.

I also replaced the factory donuts with 285/75x16s. My mileage dropped
about 1.5mpg even with recalculating for bigger tires (at 14 average,
believe me, you can tell a 1.5mpg difference).

My truck also has a very HEAVY feel in the steering, more so with the
stock tires. 25 to 45psi, no diff. In addition, I just went through the
brakes and found out through my local Just Brakes that the computer may
need a tweak, if they CAN (he said on Chevys its possible, not sure
about the Dodge) so the rearend ABS will work. After mentioning it, I
recalled, the rear wheels NEVER tried to lock up (you get that throb
through the brake pedal, never had that after 285s).

I'm easy on my truck, yet the front brakes were shot. Has anyone out
there done a swap and put 2500 front rotors on a 1500? They have
slightly more braking surface area.

Mike

[jeepma...@my-deja.com]

my truck has the 4.10/4.11 gears in it. I anticipated this when I
bought the truck. I had previously owned a 97 Dodge 360 4x4 with the
3.54 gears. Also, I put a flowmaster muffler on it, which helped oh so
slightly in the mpg department (.1 or .2 mpg) better.

[Edmund Light]

> I am still testing tire pressures. Each tire will hold 3300lbs (BFG AT
> KO 285/75 R16 at 65 psi). 3300 x 4 = 13,200.

Looks like load range D, more like 2300 lbs.

[jeepma...@my-deja.com]

In article <7v62cm$318$1...@fu-berlin.de>,

Ed,
I'm not up on load ranges, however, the tire indicates that it will hold
3300 lbs at 65psi, lower if used in a dual setup, and the tires do have
load range D on them as well.

[Ed Light]

<jeepma...@my-deja.com> wrote in message
news:7v6tcr$rqo$1...@nnrp1.deja.com...

> In article <7v62cm$318$1...@fu-berlin.de>,
> "Edmund Light" <m...@mk.net> wrote:
> > > I am still testing tire pressures. Each tire will hold 3300lbs (BFG
> AT
> > > KO 285/75 R16 at 65 psi). 3300 x 4 = 13,200.
> >
> > Looks like load range D, more like 2300 lbs.
> >
> >
> Ed,
> I'm not up on load ranges, however, the tire indicates that it will hold
> 3300 lbs at 65psi, lower if used in a dual setup, and the tires do have
> load range D on them as well.

I would check into it as it may be a misprint.

[Steve St.Laurent]

Not a misprint - that's what's on the sidewall of the tire on my 285/75R16
AT KO's (3300 lbs @ 65 psi SRW) as well. That was the reason I bought them.

-Steve St.Laurent
'98 Quad Cab Long Bed (CMNSPWR), 4x4, ISB, 5sp, 4.10 LSD, Prime-loc remote
fuel filter,
boost & pyro gauges, TST Powermax, Permatech spray in liner, Grizzly
stainless nerf bars,
BFG 285/75R16 AT KO's
http://my.voyager.net/stevest

Ed Light wrote in message <7v916g$j94$1...@fu-berlin.de>...

[Ed Light]

I just researched it and you're right! Load range D goes up in poundage in
larger tires.

Ed Light <m...@mk.net> wrote in message news:7v916g$j94$1...@fu-berlin.de...

[rsrey...@freewwweb.com]

Have you done anything to adjust your ABS system? Have heard that this
can be done but have no specifics. Also, you're speedo gear conversion
gizmo - how much and haw many teeth? Dealer only item? Still easy to
replace (speedo cable at transfer case)?

In article <7v6tcr$rqo$1...@nnrp1.deja.com>,

jeepma...@my-deja.com wrote:
> In article <7v62cm$318$1...@fu-berlin.de>,
> "Edmund Light" <m...@mk.net> wrote:
> > > I am still testing tire pressures. Each tire will hold 3300lbs
(BFG
> AT
> > > KO 285/75 R16 at 65 psi). 3300 x 4 = 13,200.
> >
> > Looks like load range D, more like 2300 lbs.
> >
> >
> Ed,
> I'm not up on load ranges, however, the tire indicates that it will
hold
> 3300 lbs at 65psi, lower if used in a dual setup, and the tires do
have
> load range D on them as well.
>

[jeepma...@my-deja.com]

In article <7vgh0m$k2t$1...@nnrp1.deja.com>,

rsrey...@freewwweb.com wrote:
> Have you done anything to adjust your ABS system? Have heard that
this
> can be done but have no specifics. Also, you're speedo gear
conversion
> gizmo - how much and haw many teeth? Dealer only item? Still easy to
> replace (speedo cable at transfer case)?
>

There is no speedo cable at transfer case. It used the RWAL sensor.
I haven't looked into the particulars of how it works. But I'm thinking
the only way to adjust for correct ratio is either ring and pinion (gear
swap) or have computer flashed with new data. Unfortunately, ring and
pinion is to spendy, and for now nobody makes a aftermarket computer or
programmer to correct this for the V10. It might be available for V8's
now.

[lenny]

Geno's garage offers a VSS (vehicle speed sensor)
'adjuster' for about $100. You program the dia. of
the tire, and it increases the frequency of the
pulse train in proportion.
The TDR has Geno's ad's. I do not have the
contact info.

[Lora Kennedy]

I just had the bf goodrich ko 295/75 r16's installed on kong AR 16x8
rims on a stock 99 2500 v10 without any lift kit. It looks great and
rides better than the stock tires. The front tires may hit with heavy
off roading. At full turn, there is about 1 inch of clearance.

[jeepma...@my-deja.com]

In article <381E3DF5...@swid.com>,

Lora,
Were you able to get the spare to fit with the 295/75 r16?
I wasn't able to. So I chickened out and just got the 285/75.
Plus, I figure some of the trailheads I go to, I might need the buffer
zone of the 285/75.