How to Install Teraflex HD Transmission Skid Plate on your 1997-2006 Wrangler

1. The isolation mount attaches to the TeraFlex HD Engine Skid. Remove the bracket bolts at the bell hous­ing and loosen the bolts that hold the engine skid to the block. Swing the engine skid down and install the transmission isolation mount. Rein­stall the engine HD Skid Plate.

2. Bolt the front of the transmssion skid onto the isolation mount using two carriage bolts, flat washers and nyloc nuts.

3. The front upper arms on the engine skid bolt into existing holes on the engine block. Hold the skid up in place to identify the holes and then clean the rust and mud out of the holes. Most TJs will be 3/8-16 threads on both sides but some engine blocks from 1991-1999 will have a metric thread M12-1.25 on the driver side of the block. If your engine has a knock sensor in the 12 mm bolt hole, remove the sensor and reinstall it through the arm on the HD engine skid. Be careful to select the correct bolt for your Jeep. If the bolt bottoms out before it is tight on the skid arm bracket, put an additional flat washer under the head of the bolt. 

Note: The automatic transmission cooler lines will have to be tem­porarily moved to allow access to the engine block bolt on the left side. Just remove the clip or bolt from the hanger and then put them back in place once the engine skid is installed.

4. Install both engine side bolts first leaving them loose until the bell housing bolts are installed, then move the back of the skid up near the bell housing. Using the bolt holes on the skid, remove the corresponding factory bolts and move the skid up into place. 

Note: Manual transmission models may have a small bolt in the bottom center of the bell housing holding on the inspection cover. Remove this bolt.

5. On Jeeps built prior to 2003, you will either have two 5/16 bolts or two 12 mm bolts and nuts that will be replaced with new hardware from the hardware bag included with the HD skid. Choose the correct size flat washer and put one or two flat washers between the bracket on the back of the engine skid and the bell housing inspection plate. Do not remove the inspection plate. The washers will keep the new engine skid from bending the inspection plate against the flywheels. Put in the 5/16-18 x 1-1/4 bolts for automatic transmissions or the M12-1.75 x 55 mm bolt with the original nut for manual transmissions.

6. On 2003 and newer Jeeps the addition bell housing bracket is used. Hold the bell housing bracket up to the bell housing to see which bolts need to be removed. Remove the 2 factory M10 bolts, install the bracket to the bell housing just finger tight using the supplied M10-1.50 x 25 bolts with flat washers. Put one flat washer between the new bracket and the bell housing to space the bracket away from the thin inspection cover.

On a TJ Wrangler the engine oil skid along with the HD transmission skid and Belly Up skid plate provide protec­tion to all vital components when operating in rocky terrain.