Can you figure out the ratio buy spinning drive shaft by hand and counting times rear tire turns around. I tryed and got drive shaft one revolution and 1.25 on the tire. Maybe i did something wrong it is in 1971 malibu build sheet says it has a 2.56 rear end.
rear end ratio
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When I did this, I got the same result. 1-1/4 turns. There is something about having an open carrier (non posi) that makes it to where you have to double the rotations to get the ratio. With that being stated, 1.25 x 2 + = 2.50, which is really close to 2.56.
Looks good to me. Well, as good as having a 2.56 open gear can be.
I want mine changed out so bad, but it isn't a cheap undertaking. :noway:
Looks good to me. Well, as good as having a 2.56 open gear can be.
I want mine changed out so bad, but it isn't a cheap undertaking. :noway:
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Yep, I'm pretty sure that logic is right... Sounds like 2.56.
I just rebuilt motor and tranny in # matching 71 malibu put 202/160 valves in heads to keep original heads mild cam 9.15-1 comp. and i'm getting 16 mpg on highway but i get that mileage with my big block impala 427 4-speed 3.73 gears. Do i need to get higher gears in chevelle to get into power band on motor?
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Yeah, you'd be better off with a set of 3 series gears, like 3.42s or 3.55s, maybe even 3.73s:thumbsup:
This is an awesome tool, plug in some numbers and play with this, it is pretty self-explanatory.
http://tri-5.chevyrides.com/rpm.php
This is an awesome tool, plug in some numbers and play with this, it is pretty self-explanatory.
http://tri-5.chevyrides.com/rpm.php
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With a standard rear end you must turn both wheels one full turn or turn one wheel two full turns with the other wheel being held still. A good posi rear end will turn both wheels together.
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