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Old 05-31-2005, 03:19 PM   #1
ers13
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Question TH-400 transmission question

Hi, I'm new to this board and have a few questions. First, I am in the process of re-powering my 72 Blazer with a new "Z" series crate motor with a new TH400. I was wondering if anyone out there knows the length of the output shaft required. I talked to the guys at Monster motor sports, and they said there were 2 different lengths. Second question, anyone out there in the North East have a good double wall top for sale including the hatch? My double wall is sagging on top and the hatch is trashed.

Thanks in advance!
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Old 05-31-2005, 03:34 PM   #2
jhow66
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2 wheel or 4 wheel?
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Old 05-31-2005, 04:40 PM   #3
ers13
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Sorry about that, 4 wheel drive with an NP 205, d44 front 12 bolt rear w 3:73 gears
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Old 05-31-2005, 04:57 PM   #4
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Old 05-31-2005, 05:23 PM   #5
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Do you have the proper adapter for the T-case.The th350 is different than the th400 adapter.
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Old 05-31-2005, 05:24 PM   #6
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Here is some info on the 205 case and it's adapters and input shaft sizes http://www.offroaddesign.com/NP205tech.htm The proper shaft stickout from the back of the TH400 for this type of 205 input gear is about 4 1/2".
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Old 06-01-2005, 10:53 PM   #7
ers13
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Thanks for the welcome and all the info, it originally came with the TH-400, it's pretty tired though, so I guess it does have the proper adapter. I'm figuring out more about the truck every time I work on it. It was originally a CST model.
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