Billy,

Do you have OD?

With 10.00x20 at 42.25" tall and Direct Drive (1:1) at the trans with you 4.88 rear you'll get about 51mph at 2000 rpm or 64 mph at 2500 rpm. If you have .8 OD it bumps up to 64 mph at 2000 rpm (way better!).

Mike B smile

Mike Boteler

1956 Chevy 3100 Resto Rod
1952 Willys M38 Army Jeep
1983 Jeep CJ7 Laredo
1984 Jeep CJ7
+++++
Silver Spring, MD