TM 10-3950-672-24-2
The piston pin end of the connecting rod is angle cut to
provide additional bearing surface. The rod end is fitted
with a bronze bushing.
In production, steel backed aluminum rod bearings are
used for naturally aspirated engines. Steel backed
trimetal bearings are used in production for the
additional loading resulting from turbocharging and
aftercooling.
To prevent incorrect use of the two bearings at time of
repair, only steel back tri-metal bearings are available
for service.
Oversize service rod bearings are available for use with
re-ground crankshafts.
5-166