I recently just sold my diesel because the tranny broke.
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rebuilt engines
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rebuilt engines
Question My truck sucks at towing, and here's why
- Thread starter NORFLA444
- Start date
bigrigr
Real trks hv 3 pdls
Bueller.....Bueller..... WTH?
02SilverStroke
Full Access Member
x2
Every tire has a Max Load rateing @ XX psi. A given.
But that doesn't mean, we need to run tires, at thier Max PSI.
Weigh the vehicle, and/or trailer..Get a known GVW, or GCVW, Go to the Tire Manufactures chart, for the SPECIFIC tire you have.. The chart will tell you what PSI should be in EACH tire.. for the known GVW, or GCVW.
Example:
With 6 Goodyear GS647 RSS, 285 16's on the 350, and 4 Goodyear SRA, 285 16's on the 5r. All have a Max load rateing of 3042 lbs, single @ 80 psi, or 2778 lbs, dual @ 80 psi.
A Cat scale tag tells me that our "Rig".. has a GCVW of 18840 lbs:
4040 lbs on the front axle
5980 lbs on the drive axle (DRW's)
8820 lbs on the 2 5r axels
The Goodyear tire Load~PSI chart, for these SPECIFIC tires tells me to run:
68 psi per tire on the front axle (I run 70)
55 psi per tire on the DRW drive axle (I run 60)
65 psi per tire on the 5r axles (I run 68)
Sooo.. I'm at, but a bit above what the Tire Manufacture recommends.. for their SPECIFIC tire.
Make any sence
Joe
Last edited:
Every tire has a Max Load rateing @ X psi. A given.
But that doesn't mean, you need to run the Max PSI.
Weigh the vehicle, or trailer..Get a known GVW, or GCVW, Go to the Tire Manufactures chart, for the SPECIFIC tire you have.. The chart will tell you what PSI should be in EACH tire.. for the known GVW, or GCVW.
Example: With 6 Goodyear GS647 RSS, 285 16's on the 350, and 4 Goodyear SRA, 285 16's on the 5r.
Cat scale tag tells me the "Rig" has a GCVW of 18840 lbs:
4040 lbs on the front axle
5980 lbs on the drive axle (DRW's)
8820 lbs 0n the 5r axels
The Goodyear tire Load~PSI chart, for these SPECIFIC tires tells me to run:
68 psi per tire on the front axle (I run 70)
55 psi per tire on the DRW drive axle (I run 60)
65 psi per tire on the 5r axles (I run 70)
Make any sence
Joe
YES
BUt I see people do this all the time do this. They see the tire max psi is 75 psi and they go to that point, but there not taking in that the tire will heat up 5 to 10 degs. running down the road. My 5ther has tr205/75/R15 D
and the max psi is 75 but I run 55psi it works well.
Absolutly.I've Never run Max psi, but Never run less than what the maker sez... on thier charts. I run mine a little high.. but get REAL GOOD service life.. and here in the Cali summer heat (100+).. they run a bit cooler. (An Infrared temp gun will show you some stuff... about that
)The recommended tire psi on the truck door is a good [Reference] too. But when & if you change Brands/style'n type.... it's a whole new ball game.
The Tire Manufactures Load~PSI Charts are the Way To Go.. IMO & JMO.
Joe
iracemine
black and tan
Every tire has a Max Load rateing @ XX psi. A given.
But that doesn't mean, we need to run tires, at thier Max PSI.
Weigh the vehicle, and/or trailer..Get a known GVW, or GCVW, Go to the Tire Manufactures chart, for the SPECIFIC tire you have.. The chart will tell you what PSI should be in EACH tire.. for the known GVW, or GCVW.
Example:
With 6 Goodyear GS647 RSS, 285 16's on the 350, and 4 Goodyear SRA, 285 16's on the 5r. All have a Max load rateing of 3042 lbs, single @ 80 psi, or 2778 lbs, dual @ 80 psi.
A Cat scale tag tells me that our "Rig".. has a GCVW of 18840 lbs:
4040 lbs on the front axle
5980 lbs on the drive axle (DRW's)
8820 lbs on the 2 5r axels
The Goodyear tire Load~PSI chart, for these SPECIFIC tires tells me to run:
68 psi per tire on the front axle (I run 70)
55 psi per tire on the DRW drive axle (I run 60)
65 psi per tire on the 5r axles (I run 68)
Sooo.. I'm at, but a bit above what the Tire Manufacture recommends.. for their SPECIFIC tire.
Make any sence
Joe
awesome. this is great! but what I need to know is where would I find a cat scale and how do you get the three axle measurements from and I cant find a chart for bf good wrench rugged trail t/a. Not that I have any issues but not that I might not too.
iracemine
black and tan
I found that. But all it gives is the max weight at max psi. Is that it? If it is how do I calculate the appropriate psi when I find out my weight???? sorry for being a nub.
iracemine
black and tan
http://www.goodyear.com/truck/pdf/edb_loads.pdf
best I can find. but not my tire. wonder if its ok to use?
best I can find. but not my tire. wonder if its ok to use?
