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02-14-2015, 07:11 PM
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Registered User
Join Date: Mar 2007
Location: Farmington, MN
Posts: 928
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Re: 77 chevy cast iron transfer case
The NP205 is a gear drive unit that off road guys like for it's strength. The NP203 is a chain drive unit and as stated above can be used to make a "doubler" for further gear reduction. The NP203 and NP205 have low range gear ratios of about 2:1. A double will have a low range of about 4:1. The spline count for the TH350 and TH400 versions of the NP203 are different and I think it is the TH400 version that is used for the doubler.
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I can still count my vehicles on two... wait three hands. |
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