Locking GM dipstick, junkyard $5.00. Drill out the rivets that hold the handle on the stick. Lay the original stick next to the GM stick. Measure where the GM stick bottoms on the tube and transfer that measurement to the Mopar stick. Transfer the hole locations as well. Take a caliper and scribe the Mopar stick on each side 1/2 the width difference of the GM stick, as I remember it was .050". Grind the Mopar stick along the scribed lines. Install the GM locking handle assy. on the Mopar stick with two small machine screws and a drop of Locktite. Now you have the stock Mopar level with the GM lock. This whole procedure took longer to type than it did to accomplish.
Doug
