[terrylgreenjr]

For the gauges I would run a 90-91 Blazer/Suburban cluster so you can take advantage of the electronic speedo. You will have to repin the factory cluster harness to match the pins on the 90-91 cluster but the connector is the same

I also purchased the oil and temp sending units to match the 90-91 cluster. I tapped the oil cooler line housing for the oil pressure sensor and turned down the temp sensor and taped it to match the LS cylinder head. I used the original LS temp sensor on the drivers side head for the ecm and the other head has a plug in it that I installed the sensor for the gauge

Mine was 2wd so I'm not sure about the transfer case stuff , and I also ran a Blazer/Suburban tank in the rear for fuel