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Old 05-04-2018, 03:37 PM   #3
Coley
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Join Date: Oct 2011
Location: Victoria, B.C
Posts: 3,794
Re: What transmission do I have? 72 Sierra Grande

As Sick471 mentioned the TH350 has a 45 degree scallop out of the rear corner and it is largely square in shape otherwise.
The TH400 is clearly longer than it is wide and the TH400 has a 'bump' out on one side defeating the rectangular shape in the rear area....basically the TH400 looks a bit like a race car circuit with only a couple of square corners I think.

Coley
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1966 Chevy 1/2 ton (Florida- Red/white)
1972 Chevy 1/2 ton (California- Blue/white)
2005 Chevy Silverado HD2500/Duramax
2000 Dodge Ram 1500
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