Attention: TDR Forum Junkies 
Saw folks talking about this on an RV forum. Glowshift gauges install manual suggests using test port. I did that on my 91 Suburban, but it was really slow to react to temp changes. Thoughts or suggestions?
( Transmission Test Port: Most vehicle transmissions come equipped with a test port location. This may be located on either the driver or passenger sides of the transmission near the transmission oil pan. The bolt in this port should be removed and the sensor fitted in its place. Confirm port and thread size with your vehicle dealer or owner’s manual. )
( Transmission Test Port: Most vehicle transmissions come equipped with a test port location. This may be located on either the driver or passenger sides of the transmission near the transmission oil pan. The bolt in this port should be removed and the sensor fitted in its place. Confirm port and thread size with your vehicle dealer or owner’s manual. )
