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Old 06-14-2018, 01:39 PM   #1
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Join Date: May 2018
Location: Hager City WI
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Year: 1996
Chassis: International 3800
Engine: DT 466 Mechanical spicer 6+1
Rated Cap: 65
Differential swap

I right now have a 96 int 3800 with a DT466 Mechanical engine that puts out 190 HP with a spicer 6+1 transmission and a rear ratio of 4.78. It does 68 redlined at about 2900 but was wondering if anyone would recommend a 4.10 rear end and if so what my RPMs would look like at 70 mph. Otherwise if not a 4.10 what other ratio? also just so you know, I will be pulling a 7X16 trailer behind it... thanks
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Old 06-14-2018, 02:25 PM   #2
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Location: Eustis FLORIDA
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Year: 2004
Coachwork: IC
Chassis: CE300
Engine: DT466E
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Originally Posted by alexzckary View Post
I right now have a 96 int 3800 with a DT466 Mechanical engine that puts out 190 HP with a spicer 6+1 transmission and a rear ratio of 4.78. It does 68 redlined at about 2900 but was wondering if anyone would recommend a 4.10 rear end and if so what my RPMs would look like at 70 mph. Otherwise if not a 4.10 what other ratio? also just so you know, I will be pulling a 7X16 trailer behind it... thanks
2900 is HIGH for a DT. The lower powered ones redline at 2600, the high torque models redline at 2400.
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Old 06-14-2018, 03:17 PM   #3
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Year: 2002
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Measure your tire diameter and plug the numbers in and you can play with different ratios, rpm and speed: Transmission Ratio RPM Calculator | Spicer Parts
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