t/case identification

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t/case identification

Postby stock91w350 » Sun Apr 11, 2010 2:56 pm

on my 84 chevy k20, i found my transfercase tag, i was told it would be a round tag but the tag i found was longe and skinny, this is what it says,

3968060 ctc

9 29 69 205 im guessing its a np205 from 1969??? also i have another 4spd and t/case in my garage but that one has a round tag and says'



208c
140l 0893
18 83
261 im guessing this ones a 208. anyone help me decode these? thank you
91 w350 5spd dually. 5"stack, fuelpin, starwheel all in, smoke screw all in, homemade cold air intake
stock91w350
fuel screw!!!!
 
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Re: t/case identification

Postby Fred_M1010 » Mon Apr 12, 2010 4:47 am

Here's some help with identifying some transfercases:
NP203
Image
Full-time 4wd, cast iron, chain-driven, 1.96:1 lo ratio

NP205
Image
Part-time 4wd, cast iron, gear-driven, 1.96:1 lo ratio.
Easily identified by the 3-bolted cap in the center


NP208

Image
Part-time 4wd, aluminum, chain-driven, 2.61:1 lo ratio.

NP241
Image
Part-time 4wd, aluminum, chain-driven, 2.72:1 lo ratio.

Types of yokes and driver/passengerside drop can vary.
-91.5 W250
User avatar
Fred_M1010
fuel screw!!!!
 
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