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Old 12-16-2015, 11:42 AM   #28
68Timber
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Join Date: Nov 2007
Location: MONTGOMERY, AL
Posts: 5,523
Re: LS swap for my 75

Quote:
Originally Posted by Zoomad75 View Post
Getting back on track, if the OP is planning on using the PCM and wiring from the donor truck, using a 208 isn't going to get the vss signal needed. Go look for a pass side drop 241 from a 90-91 Blazer or Suburban. Specifically, a 27 spline input to match the 4L60e. That will have the correct VSS tone ring and sensor on the output of the t-case to provide the input needed to the PCM. The 241 will bolt right up to the 4L60e too.
Thanks for the correction.
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John

79 2wd Blazer (Bruiser)
85 M1009 Blazer (Sarge) build
74 Honda Z50 build
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