On our last trip to Atlanta we had one of the belts break while we were passing a semi. We were in the center lane and the semi was in the right lane. Just as I was pulling even with the front of the semi I noticed that the steering was getting kind of stiff. I immediately realized we had lost the power steering belt. Worse, the power steering pump also provides hydraulics for the power brakes. So here I was passing a semi and my steering and brakes disappear. Since there was a long line of vehicles behind the semi I opted to speed up and get in front of him and then immediately moved over to the shoulder while still going highway speed. Once on the shoulder it took everything I had to get the motorhome to stop. Fortunately we were on a long flat stretch after having recently passed over the Cumberland Mountains just north of Knoxville. Needless to say it took me a few moments to calm down once we got stopped.
It turns out that one of the belts broke and when it did it took out the other two belts. So I now needed to source all three belts since I didn't have any spare belts
We got lucky and were sitting real close to an exit and we could see an O'Reilys store in the distance. Susan called and managed to get them to deliver to the building on the service road right next to where we came to a stop, how lucky is that
Within 45 minutes of having come to a stop we had new belts in our hands.
One lesson learned here is if a belt is starting to squeal it's time to replace it AND all of the others as well. I let the squealing belt go on for several years, mainly because we hadn't been using the motorhome more than a couple of times a year and I just kept forgetting about it.
Replacing the belts is not a fun project expecially if the motor is warm or hot but it sure beats the alternative of having the motorhome towed or paying for road side service. It's really not all that hard to do, just time consuming and you'll end up with a few bruises and scratches. At least I did anyway
Our motorhome is a 1984 310 with 454 and one smog pump below the alternator on the right side.
Install this belt first:
7585 - Gates 13/32" x 59-1/8"
Routing = AC - PS - Crank - WP
Install this belt second:
7410 - Gates 13/32" x 41-5/8"
Routing = PS - crank
Install this belt third:
7495 - Gates 13/32" x 50-1/8"
Routing = Alt - Crank - WP - Smog (below alternator)
Lower alternator bolt is accessible from underneath right front through the wheel well with the wheel mounted.
When tensioning the power steering pump there is a 1/2" square hole in the adjuster bracket for using a 1/2" ratchet. Place the ratchet drive in the hole and use the ratchet handle as a tension lever. You can use this to also release the tension on the belt during installation.
You will need to work from above and below to get all of the belts installed properly. I probably made probably 50 trips from inside to outside and back while installing the belts. I have a large 36" x 48" red mat that I carry on trips and I used this to lay on top of the motor and also used it to lay on while under the motorhome.
I hope this helps someone to keep moving on down the road