This HOW TO will cover the installation of the B&M Transmission Temperature
Gauge kit P/N
80212. This 2 1/16 DIA gauge will fit perfectly in a slightly trimmed round plastic panel on the dash of all non 4wd Titans. This high quality gauge kit can be had at most auto parts stores for about $55.
Tekonsha also makes a kit with a 2 1/16 DIA gauge, but I like the B&M one better.
What you need is:
1 EACH 10mm T-fitting P/N T10LA3C. $9
1 EACH 2 1/16 hole saw from Ace hardware P/N 24318, no pilot drill bit required. $12
3 EACH different color 14 gauge electrical wires about 4 foot long. $3
1 EACH steel tubing cutter. $8
STEP 1: Gain access to backside of bezel by firmly grabing top of dash sill and pull aft. The bezel is held in by clips and will seperate from the dash with minimal force. Once the bezel is about 2-3 inches from dash, reach behind plastic plug and push it out with your fingers. Place a butter knife under the lip of plug and force it full out of bezel.
STEP 2: You will notice the back of the plastic plate looks like a child's cup. This plug will only fit in the dash one way. At the bottom of the cup is a small piece of plastic that will keep your hole saw from rotating. Clip this area off. Place hole saw in back of cup and rotate by hand. After some time,the saw will cut through to the front. Trial fit gauge in hole.
STEP 3: Trim the plastic retainer ring supplied in kit. Cut the flaring sides off about half way and discard the ring. Sand the bridge part that slides over the studs on the back of the gauge until it barely comes in contact with the OEM plug and then assemble the wire lugs.
Step 4: Place wires through hole in dash and snap gauge in place.
Step 5: Follow printed directions supplied with kit.
Note 1: I have heard the forward metal line that connect to the tranny is the RETURN line from the cooler. Can anyone confirm this?
Note 2: The supplied compression Tees are both SAE. DO NOT cut your transmission line until you have a 10mm Tee.
See Squids photo:
http://www.titantalk.com/forums/showthread.php?t=25554