Re: [MV] Transfer cases

Walter Stolar (stolar@mhd1.moorhead.msus.edu)
Thu, 12 Mar 1998 15:12:06 -0600 (CST)

Mike,

The NP200 is just as stout as the 205. I have an M37 with a Olds 455 and
turbo 400 in it (sorry to the purists, but this truck had no drivetrain or
axles when I got it - the t/c was there!). Anyways, I run the a
driveshaft directly off the center output (had to remove the emergency
brake mechanism as that is what was bolted up to the central output
flange). The driveshaft goes to a rear Dana 70 with a centered diff.
No problems ever.

I can see some problems with t/c overheating if you run the 5.83 gears in
an M37 with a high revving V8 over long distances on the highway and the
stock 9-16 tire diameter. The stock Flathead six redlines at what, 3200
rpm? (not sure). A V8 can easily exceed this and add another 1000 rpm to
the t/c. End result is too much rpm = heat.

As for stout, I run 42" Swampers and use the vehicle hard. Never had a
t/c problem.

The NP 200 is rated up to 2 ton applications if I recall my Dodge
literature. Many years ago I pulled one of a D500 (or W500?) dump truck
with dual rear wheels. Bottom line, it's a tough and will take much
torque, but keep the extended highway rpm's reasonable.

Walter in MN

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