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01-19-2021, 12:59 PM | #1 |
Registered User
Join Date: Feb 2007
Location: Memphis MI
Posts: 1,851
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Square body with 4l60E - Speed and Range Switch
It's been a while but I'm still here with more annoying questions!
Project - 198x K2500, Straight 6 250, NP241 from 89 K5. Trans - 1993/94 4L60E. Essentially pulling entire wiring harness out of a 1994 K10 4.3 V6 to convert my old straight six to TBI, and get an ECM that will run the 4L60E. Question I have is with the shifting. ECM needs speed signal and range switch to manage the gears correctly. The 94 has those, but I think the 89 NP241 does not have the exact same set up for range switch, and it's a cable speedo. And I can't swap the cases directly (wrong side drop). Anyone got a great idea? I like my cable drive speedo but it's not a deal breaker if I can figure out everything else. Thanks!
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1987 2 ton 1982 250/TH350 beater in progress Dad's 1981 3/4 L6 3 on tree posi and no options, awaiting restoration or scrapping Plus a mess o' tractors |
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