Tire wear concern

jsledder · 04-12-2009, 04:23 PM

Rotating the tires on my Megacab today and took down some readings. It appears to me that the rear is suffering from over inflation and the front could have a slight aligment issue.

Front Left - 54psi, TD middle - .397, outside - .346, inside - .370.
Front Right - 54psi, TD middle - .383, outside - .384, inside - .345.

Left rear - 54psi, TD middle - .195, outside - .345, inside - .356.
Right rear - 54psi, TD middle - .203, outside - .347, inside - .354.

Door says to run 60psi in the front and 45 or 70 in the rear. (light load or max load).

Most of my miles are highway miles empty or with a 3000lb open trailer with about 600lbs tongue weight. Occasionally I have my 4 place enclosed and 4 sleds, probably 4-6 weekends/winter. Truck has just under 19k on it and the tires are the stock BF Goodrich all terrains. Very little gravel, no burnouts.

Tire experts..... should I drop the rear tire pressure to 45 and raise the front to 60?

***ryans01*** · 04-16-2009, 11:46 PM

well....IMO---this is what i've found to be the best all around for me...i don't run anymore then 35-45PSI in the rears...now keep in mind the most i really pull is 5-8k...if i were to pull more then i would bump the rear pressure up...

in the front...when i was run'n load E tires, i always kept them at about 70-75PSI...kept them from cupp'n on me...now that i have load D rated tires i run the max which is 65psi in them...

hope this helps some...

ps...i rotate my tires every 10k too...

__________________

Ryan S.

"The BDR Edition" 2001 4 X 4, 3500, 2nd NV4500, II SO VP, SBC DD 3600 12CB w/ input shaft AND Valair HD HYDRO'S, TSTPM3, Edge EZ, AFE, FASS HPFP, 5" turnout stacks, gauges 319.9/776.8 4/25/09 DUNBAR'S DYNO

cverellen · 04-17-2009, 01:35 AM

I'm runnin 45 on the rear 55 on the front.

__________________
03 2500 4x4, Quad Cab, Long Bed, Auto, Afe Stage 1, Edge w/juice

***ryans01*** · 04-17-2009, 08:49 AM

for some reason i was thinking again.....

....thought you had a dually for second....

my buddy's 3/4 tn, he runs 55-60 front and 45-50 in the rear, this is on 315/70r16s....

__________________

Ryan S.

"The BDR Edition" 2001 4 X 4, 3500, 2nd NV4500, II SO VP, SBC DD 3600 12CB w/ input shaft AND Valair HD HYDRO'S, TSTPM3, Edge EZ, AFE, FASS HPFP, 5" turnout stacks, gauges 319.9/776.8 4/25/09 DUNBAR'S DYNO

ynots57 · 04-17-2009, 09:34 AM

i run 70 psi on my Michelins regardless of load, 42,000 miles, only rotated twice. the front is heavier, a turning tire and provides the most breaking force, the rear is the traction tire and with my driving habits the wear so far has been equal. when running max psi i also get better mpg because of less rolling resistance. I use to run 55 front (4400 lb) 50 rear (3300 lb) when empty.

__________________
2005 3/4 SRW 48RE QUAD L/B 4x4 AEM AERO

04-12-2009, 04:23 PM	#1 (permalink)
jsledder Cummins Enthusiast Join Date: Dec 2008 Location: SD Posts: 224 Thanks: 2 Thanked 9 Times in 8 Posts jsledder's Truck Pics	Tire wear concern Rotating the tires on my Megacab today and took down some readings. It appears to me that the rear is suffering from over inflation and the front could have a slight aligment issue. Front Left - 54psi, TD middle - .397, outside - .346, inside - .370. Front Right - 54psi, TD middle - .383, outside - .384, inside - .345. Left rear - 54psi, TD middle - .195, outside - .345, inside - .356. Right rear - 54psi, TD middle - .203, outside - .347, inside - .354. Door says to run 60psi in the front and 45 or 70 in the rear. (light load or max load). Most of my miles are highway miles empty or with a 3000lb open trailer with about 600lbs tongue weight. Occasionally I have my 4 place enclosed and 4 sleds, probably 4-6 weekends/winter. Truck has just under 19k on it and the tires are the stock BF Goodrich all terrains. Very little gravel, no burnouts. Tire experts..... should I drop the rear tire pressure to 45 and raise the front to 60?

04-17-2009, 08:49 AM	#4 (permalink)
*ryans01* THE BDR Join Date: Jan 2007 Location: Walhalla, SC Posts: 1,934 Thanks: 19 Thanked 13 Times in 11 Posts ryans01's Truck Pics	for some reason i was thinking again.........thought you had a dually for second.... my buddy's 3/4 tn, he runs 55-60 front and 45-50 in the rear, this is on 315/70r16s.... __________________ *Ryan S.* "The BDR Edition" 2001 4 X 4, 3500, 2nd NV4500, II SO VP, SBC DD 3600 12CB w/ input shaft AND Valair HD HYDRO'S, TSTPM3, Edge EZ, AFE, FASS HPFP, 5" turnout stacks, gauges 319.9/776.8 4/25/09 DUNBAR'S DYNO

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04-16-2009, 11:46 PM	#2 (permalink)
*ryans01* THE BDR Join Date: Jan 2007 Location: Walhalla, SC Posts: 1,934 Thanks: 19 Thanked 13 Times in 11 Posts ryans01's Truck Pics	well....IMO---this is what i've found to be the best all around for me...i don't run anymore then 35-45PSI in the rears...now keep in mind the most i really pull is 5-8k...if i were to pull more then i would bump the rear pressure up... in the front...when i was run'n load E tires, i always kept them at about 70-75PSI...kept them from cupp'n on me...now that i have load D rated tires i run the max which is 65psi in them... hope this helps some... ps...i rotate my tires every 10k too... __________________ *Ryan S.* "The BDR Edition" 2001 4 X 4, 3500, 2nd NV4500, II SO VP, SBC DD 3600 12CB w/ input shaft AND Valair HD HYDRO'S, TSTPM3, Edge EZ, AFE, FASS HPFP, 5" turnout stacks, gauges 319.9/776.8 4/25/09 DUNBAR'S DYNO

04-17-2009, 01:35 AM	#3 (permalink)
cverellen Cummins Fan Join Date: Feb 2007 Location: Wenatchee WA Posts: 66 Thanks: 0 Thanked 0 Times in 0 Posts cverellen's Truck Pics	I'm runnin 45 on the rear 55 on the front. __________________ 03 2500 4x4, Quad Cab, Long Bed, Auto, Afe Stage 1, Edge w/juice

04-17-2009, 09:34 AM	#5 (permalink)
ynots57 Diesel Head Join Date: Mar 2007 Location: Southern OR Posts: 2,632 Thanks: 11 Thanked 20 Times in 19 Posts ynots57's Truck Pics	i run 70 psi on my Michelins regardless of load, 42,000 miles, only rotated twice. the front is heavier, a turning tire and provides the most breaking force, the rear is the traction tire and with my driving habits the wear so far has been equal. when running max psi i also get better mpg because of less rolling resistance. I use to run 55 front (4400 lb) 50 rear (3300 lb) when empty. __________________ 2005 3/4 SRW 48RE QUAD L/B 4x4 AEM AERO