4 New Drive Now Noise in Driveline

Did you switch from low profile to high profile? If so that could do it. Also if you switched it will make your speedo way off & you'll get a bunch of speeding tickets because of the difference not to mention the difference in height on the rear ends.

Many drivers have done this because high pro tires are much cheaper now-a-days. But it also does many things to the unit & this sounds like it could have happened here.

From a retired federal DOT officer.

 

yes one of my KWs did the same I know it sucks but even them out as it is cheaper then a power divider

 

I think the only solution is another four new tires. You could mix and match, but there will be excess wear somewhere, tires or gears. Similar tires should be mounted next to each other. The average circumference on one axle should be close to the average circumference on the other axle. On each axle, the average circumference on one side should be near the average circumference on the other side.

If you do not think this is important, make notes of the circumference of each tire. There may be a 6 inch difference between the new ones and the old ones. For convenience, they talk about height and in the old days, drivers carried a big caliper to compare tires. Height difference is hardly noticeable, but circumference will get your attention.

Having said that, I think the different sizes would only cause your interaxle to run warm unless it already has problems.