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Old 02-27-2011, 07:46 PM   #1
Longhorn Man
its all about the +6 inches
 
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Re: Rear gears

probably either an inacurate tach, or a guestimate on RPMs.
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Old 02-28-2011, 07:16 AM   #2
Blazer1970
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Re: Rear gears

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Originally Posted by Longhorn Man View Post
probably either an inacurate tach, or a guestimate on RPMs.
If it is a stock tach it is definitely not accurate. Pretty much all of those old tachs read at least several hundred RPM high.
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Old 02-28-2011, 05:35 PM   #3
Longhorn Man
its all about the +6 inches
 
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Re: Rear gears

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If it is a stock tach it is definitely not accurate. Pretty much all of those old tachs read at least several hundred RPM high.
they sucked when they were new, add 40 years to them and they are craptastic at best.
I still don't get it why people go ga-ga over them.
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Old 03-06-2011, 08:57 AM   #4
haysonj
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Re: Rear gears

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they sucked when they were new, add 40 years to them and they are craptastic at best.
I still don't get it why people go ga-ga over them.
Its the cool factor of having that center hole filled with something.
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Old 03-15-2011, 04:53 PM   #5
chvtrkman
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Re: Rear gears

Factorystock,Sorry I lost track of this thread...my kids were on the computer and I forgot to go back to it. The tranny I swapped for the 3 spd is a New Process GM MY6...They were used in Chevy trucks from early to mid 80s I believe.My goal was to improve my gas mileage a bit w/o having to change rear end gears.while it did get the revs down some, I still only get 10-11 mpg.

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