I have 2004 triple axle sandpiper sport toyhauler. Max weight is 15 K but i only load it to 9,300 (weighed it as full as it will ever be). There are several different brand tires on it, with max PSI ratings from 45 to 80 PSI.So should i set all the tires to the max rating for the lowest PSI on the sidewall, which would be 45?

Are all the tires the same size, ply rating and the same design?If they are not you should get a new set.For now take the weakest tire, use it at the bare minimum to get you somewhere to get new set.

Mixed trailer tires of different max PSIs? Danger, Will Robinson!

I would replace any tire not rated 80 psi or different size than the others.

15K triple axle tow hauler only weighing 9300#??45# ....get rid of those80# ...fill to max psi

What sizes are all these tires? Different sizes and different ratings? ST or LT tires?

PSI rating variables | Good Sam Community

lamopar
Explorer
Nov 06, 2020
If your tires are 15" I highly recommend the GoodYear trailer tire they sell at Discount Tire. They have a speed rating of 87 mph and GoodYear will replace with new if there is a blow out down to 3/16". We had problems with several tires on our triple and after switching no problems at all. Just finished a 6K trip. I replaced the back two as they seem to wear faster than any others at $130 each. I am guessing they went somewhere between 12 and 15K and the front two axles are still fine. Just my recommendation though.
lincster
Explorer
Nov 04, 2020
dedmiston wrote:
lincster wrote:
My Warrior has 9500lbs on the axles and 2500lbs pin weight, empty trailer.
So I can see those numbers.
I have put my trailer on the CAT scale numerous times.

Don't worry about placard, go with a good LT tire, not ST junk.
As stated already, don't mix/match tires.

Long time, no see, Linc. Glad to see you still kicking around.

How is your Warrior holding up?

Have you been out to the dunes yet this season? I heard they are seeing record crowds already.

Oh yes, still at it. LOL.

Warrior is holding up well, minor stuff from age, but still in great shape.
Put about 7000 miles a year on it. I have had it since 2004...... 105k miles give or take? So I would say it is holding up extremely well. :)
Leaving for the dunes for the first trip in a few days.
I'm sure it will be a busy season.
Everyone seems to be buying toys and campers and getting out of town.
dedmiston
Moderator
Nov 03, 2020
lincster wrote:
My Warrior has 9500lbs on the axles and 2500lbs pin weight, empty trailer.
So I can see those numbers.
I have put my trailer on the CAT scale numerous times.

Don't worry about placard, go with a good LT tire, not ST junk.
As stated already, don't mix/match tires.

Long time, no see, Linc. Glad to see you still kicking around.

How is your Warrior holding up?

Have you been out to the dunes yet this season? I heard they are seeing record crowds already.
lincster
Explorer
Nov 03, 2020
My Warrior has 9500lbs on the axles and 2500lbs pin weight, empty trailer.
So I can see those numbers.
I have put my trailer on the CAT scale numerous times.

Don't worry about placard, go with a good LT tire, not ST junk.
As stated already, don't mix/match tires.
Huntindog
Explorer
Nov 01, 2020
Since this RV is for emergency use, a tire failure could be more than a inconveinient delay on a vacation.

So get those tires replaced pronto.
Old-Biscuit
Explorer III
Oct 27, 2020
enblethen wrote:
I believe you are correct thinking it is combined axle weight. This shows about 2256 hitch weight.
Sandpiper 38

That is a DRY pin weight based on a DRY trailer weight of 12,823#
Minus the DRY Pin equals 10,567# on axle
DRY weight is more then what OP has posted as 'weight'

If would help if OP would post actual Model Number

Regardless......45# tires mixed with 80# tires
enblethen
Nomad
Oct 27, 2020
I believe you are correct thinking it is combined axle weight. This shows about 2256 hitch weight.
Sandpiper 38
fj12ryder
Explorer III
Oct 27, 2020
time2roll wrote:
joebedford wrote:
Old-Biscuit wrote:
15K triple axle tow hauler only weighing 9300#??
Yeah, I too find that impossible to believe.
Maybe that is 9300 on the axles to talk about tire weight ratings.
That was my thought too.
time2roll
Nomad
Oct 27, 2020
joebedford wrote:
Old-Biscuit wrote:
15K triple axle tow hauler only weighing 9300#??
Yeah, I too find that impossible to believe.
Maybe that is 9300 on the axles to talk about tire weight ratings.
JIMNLIN
Explorer III
Oct 27, 2020
double post..jim