I had a JRXT too. My first car was a Jr. 2. Their "entry Level" buggy. It was their first car with a tub chassis. Then the JRxT. Then the Jr2 got converted to a JRX Pro SE When that came out and JRxT got converted to an LXT. All of those cars used the same bulkheads and hub carriers so converting was no problem. I stripped my share of outdrive gears on that old LRM chassis before the XX Tranny came out. I still have the LXT that has the original front bulkhead from my Jr 2 buggy on it! My brother inlaw ran it a the local track a couple of months ago. It still handled fairly well after a shock rebuild. Remeber how sloppy the old steering system was on those cars?