Rear Differential Switch on School Bus

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Rear Differential Switch on School Bus

Home > Discussion Forum > Mechanic's Corner - Transmissions

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All Messages in Thread	Author	Date
Rear Differential Switch on School Bus	Leon	8-1-05
Not sure if this is the right forum, but I believe the tranny is important in this situation, so I'll ask. I have a 1985 International School Bus (actually, Thomas made the bus, International made the engine), and I'm trying to get a straight answer about switching out the rear end so it will go faster than 45mph. Right now, the ratio in the differential is 6.50, we are probably going to move down to a 4.33. It seems quickest, easiest and least expensive to switch out the enitre 'hog head', rather than just the gears themselves. The transmission is an Allison 545, with 165 hp diesel engine. All that said, does anyone know what I'll get out of this process? Will all this money and effort only allow my bus to go 50 mph, or can I be hopeful enough for 65 mph? Anyone with any experience with this, please let me know!
Re: Rear Differential Switch on School Bus	pat young	12-3-05
Howdy Leon Just drop me an email or call me. this is an easy question that I can help you with. I may have a rear end for you too. have a good one Patrick Young 1970 Gillig Splendocruiser Spicer 5 speed --fully manual Powered by 8V79.5 CAT NA 4 wheel drive (the back ones) Aka the Wheelchair Project Fresno, CA http://www.fresnoalliance.com/wheelchairproject (559) 244-1042 (559) 251-3814 WheelchairBusProject@yahoo.com