International/Navistar T444E Service Manual

The T444E is one of the most popular engines found in school buses between 1994 and 2004. This engine was used as the base platform for Ford’s 7.3 Powerstroke as well, sharing almost all mechanical components. The T444E replaced the 7.3 IDI that was produced...

Comparing Harbor Freight Generators

I recently had the opportunity to compare the Predator Super Quiet 3500 and Predator 4375 generators from Harbor Freight. I put them through their paces to see which one is the best deal for someone building and living in a Skoolie, van, tiny home, or RV. Make sure to...

Cummins B Series Operation and Maintenance Manual

The 12 valve, mechanical Cummins 5.9 engine is very popular in school buses between the late 1980s and the late 1990s. Originally introduced in 1984 for agricultural uses, it earned a solid reputation for reliability and longevity. This engine was also very popular in...

Allison AT545 Transmission Service Manual

The AT545 is the most popular transmission in school buses in the 1980s and 1990s and is generally a very reliable unit if you accept its limitations. Nearly every bus equipped with the Cummins 5.9 or Navistar T444E in a front engine configuration will be using the...