The TRB and sleeve bearing cranks are definitely different. The main problem with the sleeve bearing cranks is that the journals are the same size as the crank, so no under size bearings are possible. It would be impossible to slide the crank through an under sized bearing. There is also the problem of offsets from the crank throw. The TRB cranks have a section that is larger in diameter for the TRB bearings to sit on. Plus, a sleeve bearing can handle much higher loads than a TRB can. The sleeve bearing also runs quieter. The original Lister CS engines were never set up with TRBs. It would be a difficult thing to convert the 5/1 Lister engine, plus it would probably ruin its resale value. Many of the Listeroid cranks are set up for the sleeve bearings and these cranks and parts are very inexpensive. I sold the replacement cranks for $75 US until I ran out of them. BTW, I have never seen or heard of a Listeroid crank failure, but I have seen the original Lister cranks fail. In all fairness, the Listeroids have only been distributed widely here for the past 6-8 years while the original Lister engine have, in many cases, accrued many thousands of hours. From my experience I wouldn't be afraid of a Listeroid crank.
Mike
