transmission swap - The 1947 - Present Chevrolet & GMC Truck Message Board Network

rfmaster · 04-30-2008, 11:01 PM

Stoke

ECM (1227747) controls 700R4 lock-up via three wire interface (white four pin connector), but you'll also need to wire brake pedal switch for TCC release function. It is a very simple two wire circuit.
After market harnesses are nice - wires are higher quality and connectors are not broken. Otherwise you'll need to exercise care when removing harness from '88 donor. BTW if IIRC I used 2-1/8 52mm GreenLee tools hole punch for the firewall though hole (just because I had it around). Worked like a charm.

//RF

04-30-2008, 11:01 PM	#13
rfmaster Registered User Join Date: Oct 2003 Location: OC CA Posts: 1,374	Re: transmission swap Stoke ECM (1227747) controls 700R4 lock-up via three wire interface (white four pin connector), but you'll also need to wire brake pedal switch for TCC release function. It is a very simple two wire circuit. After market harnesses are nice - wires are higher quality and connectors are not broken. Otherwise you'll need to exercise care when removing harness from '88 donor. BTW if IIRC I used 2-1/8 52mm GreenLee tools hole punch for the firewall though hole (just because I had it around). Worked like a charm. //RF __________________ "The Beast" 1975 Chevrolet C20 longbed 350/700R4! with 3inch body lift Dual Flowmasters Super 40's! TBI retrofit completed (2007-07-29) New 383CID (+030) 08-304-8 9.5:1CR x36,005 (2012-12-17)



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