Where are they....axle ratios that is??
- Thread starter bjburnout
- Start date
Are the '63 axle ratios listed here somewhere.......
bj
http://www.348-409.com/forum/threads/where-are-they-axle-ratios-that-is.27073/
(couldn't resist) We have gear ratio's here:
I have a 4.88 posi center that I was told came out of a green two door '60 Brookwood 348 tri-power / 3 speed w OD. It's been many years since I looked at it, but I think I remember the ring & pinion being GM parts. Nothing in the charts for a 4.88:1 from '58-'64. Was I mis-informed all those years ago (always sounded like a cool sleeper combo) or could it have originally been a Military car with non-standard options???
CDNpontiac409guy
Banned
I have a set of 5.38 GM gears
What are they out of Aubrey, or over-the-counter maybe?
I've got some 5.13 12 bolt (car) gears that are GM parts, but not sure the history of them. I have always used 4.88's (the rear above that never broke even with the 454 and slicks) and in the 12 bolt with a spool. The local tracks are 1/8th mile only so I may slip the 5.13's in one day.
CDNpontiac409guy
Banned
Over the counter, I would imagine
My experience with these rears ( I have a little bit
), is that there are a few gear ratios to avoid for big power applications.
3.08 , 3.70 , 5.38
I think it's something about the pitch on the teeth
. I know that for no apparent reason, with a 327, I have stripped teeth off each of them.
Never hurt a 3.55 or 4.56
My experience with these rears ( I have a little bit
), is that there are a few gear ratios to avoid for big power applications. 3.08 , 3.70 , 5.38
I think it's something about the pitch on the teeth
. I know that for no apparent reason, with a 327, I have stripped teeth off each of them. Never hurt a 3.55 or 4.56
