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Old 04-07-2016, 12:20 AM   #17
bh86
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Join Date: Mar 2010
Location: ID
Posts: 262
Re: 4l60E compatibility question

Quote:
Originally Posted by clinebarger View Post
You will need a Output VSS signal or the Trans will not shift.

Correct..... NP208, NP241, NP261, NP263 all use the same Round 6 Bolt mounting pattern. But the Adaptors are ALL different besides 700R4 & Early 4L60E's have the same pattern as a TH350.
TH400/4L80E/6-Bolt 4L60E/6L80E are all different from each other.
Thanks for the info, I just went ahead and swallowed the cost and ordered the adaptor. I'm on a bit of a time crunch so I had to get this rollin. Another question I have is wether the Flexplate from my LS will be fine or if I need a spacer or anything like that. Thanks to everyone for the responses, it's crazy how much help there is here, I'm glad to be getting some of this stuff figured out so I can contribute more.
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