Before I re-assemble my 38 1/2ton I was wondering if someone could coach me as to the best way to increase my freeway speeds using the OEM 216. Between the 3speed floor shift trans and stock rearend I’m assuming top speed is probably 50mph??

I would like to keep manual trans and 216.. are there any later model “drop ins” for improving drivability?

Last edited by Peggy M; 06/30/2024 11:30 AM. Reason: Add more detail to title