16 years with no blowouts, now two in a month.

[davehultin]

I figure anyone pulling a trailer will probably have a blowout at some point. I dodged the bullet for 16 years, but now I'm up to TWO blowouts. Hmmmph.

Picked up some wire on the road a month ago for the first blowout. The wire wrapped around the axel, the tire didn't have a chance. OK, that's understandable.

Yesterday we were seven miles from our destination and someone pulled up beside us on the interstate and waved us down. Not sure where yesterday's blowout came from. Driving too fast? Tire overinflated? Probably not. Damage from the wire on the last blowout that didn't show up until now? Maybe...?

Anyways, now the questions begin.

For the first repair I used the original spare tire as the permanent replacement because it's an exact match, and then got a similar tire, but 6-ply vs. 8-ply for the new spare. So far so good.

For the current replacement I was able to find a trailer tire in the town we're camping. It's also an 8-ply, but when I told the tire guys that my original tires inflated to 75 pounds, that really puzzled them. They just didn't know of any 8-ply tires that inflated to 75 pounds. Everything they saw was 65 pounds. Well, I don't have a ton of options on the road so I went with it so I could put it on tomorrow. The tire guys were pretty convinced that even though the trailer placard said 75 pounds I shouldn't inflate past 65 pounds.

OK. Back to the campground. The original trailer tires do indeed have a max inflation of 75 pounds, and are 8-ply. The newest tire has a max inflation of 65 pounds, and is 8-ply. The spare tire has a max inflation of 50 pounds (or so, I have to double-check) and is 6-ply.

I'll put the new tire into the mix (the 8-play with 65 pounds max pressure) tomorrow before we head home. What kind of trouble will I make with 3 75-lbs tires + 1 65-lb tire?

[stickdog]

Is this some unnamed brand? I believe the Max PSI is on the sidewall.

[noteven]

Last year was my "year of flat batteries..."

This year, apparently, is trailer clearance and signal lights. Fixin on the third one right now....

Can tires be far behind?

[time2roll]

Goodyear Endurance has a 2200 pound rated tire but is a bit wider at 215. Still takes 65 psi.
Seems like even the 4x 2040 giving 8160 should be fine on a 7660 GVWR trailer.

[davehultin]

Sizes are all the same: ST205/75R14

Weight ratings are:
Original tires: 2200 lbs
Spare tire: 1760 lbs
New tire (the 65 lb tire): 2040 lbs

And on the placard, the GVRW lists 7660

So ... does that mean (assuming I'm not overloading the camper) that with the combined tire weight ratings of 8640 being greater than the GVRW of 7660 that I should be safe towing?

[jdc1]

My ONLY flat on my 5'er was cause by a sharp u-turn. Ripped the treads right off the casing. Tires scrubbing (term used in skip-steer usage) that hard, I realized exactly what happened.

[time2roll]

What size are you running? Does the 75 psi tire have the same max weight rating as the 65 psi tire? Are all the same size?

[Lwiddis]

We are all dreading that next nail or piece of wire.