The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 4 Lo wiring need for 8.1 Vortec / nv4500 / np241 swap

**cdub2010** · 03-18-2024, 09:20 AM

Im finishing up the wiring to get my 1984 K30 up and running. 8.1 vortec backed by a nv4500 and a np241 transfer case. red/blue 411 computer. Original engine harness was trimmed and missing the stock 4wd 3 prong connector.

Is the 4lo signal needed on a manual trans setup?

03-18-2024, 09:20 AM	#1
cdub2010 Senior Member Join Date: Apr 2014 Location: detroit mi Posts: 206	4 Lo wiring need for 8.1 Vortec / nv4500 / np241 swap Im finishing up the wiring to get my 1984 K30 up and running. 8.1 vortec backed by a nv4500 and a np241 transfer case. red/blue 411 computer. Original engine harness was trimmed and missing the stock 4wd 3 prong connector. Is the 4lo signal needed on a manual trans setup?