View Full Version : 2r5 truck rear axle gearing

03-25-2006, 09:16 PM
I have a 1950 2r5 with a rear axle ratio of a 4.81 the # on the ring is Saliabury 15345 sr7 53-11z. with a 10 bolt ring gear. im trying to get a little more speed for the Hwy, so i am trying to fined a taller gear ratio for it like a 3.73. dose any one have any info for a replacement ring and pinion . i would realy like to keep the studebaker rear axle if at all posible .

03-26-2006, 12:00 AM
I feel your pain, with that 170 cu. in. six engine and such a high (or low, depending on how you look at it) gear ratio. My 55 truck, with a 185 cu. in. six, had a 4.55 ratio, and I really wanted to change it.

Several Stude truck owners advised me to go no lower than a 4.09 ratio (that's 45/11) if I planned to keep using that Champion six. Anything else would lug the engine, they said.

If you have a 3 spd w/ overdrive, that 4.09 ratio should be pretty good for you.

http://rocketdillo.com/studebaker/misc/images/Current_Avacar.gif[/img=left] - DilloCrafter

1955 1/2 Ton Pickup
[i]The Red-Headed Amazon

03-26-2006, 01:09 PM
My first question : Do you HAVE overdrive?[:I]

Miscreant at large.

1957 Transtar 1/2ton
1960 Larkvertible V8
1958 Provincial wagon
1953 Commander coupe
1957 President 2-dr
1955 President State
1951 Champion Biz cpe
1963 Daytona project FS