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Old 07-03-2006, 10:47 PM
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too high geared

ok i have a 92 chevy shortwide with 3.08 gears and muncie m20 and when i get on it now it will barely spin the tires when i had my 3 ring saginaw it would almost shoot a donut on ya

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Old 07-04-2006, 10:02 AM
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Thanks for the report.
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Old 07-04-2006, 10:51 PM
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The difference is in the transmission ratios in low gear. The M-20 has a 2.5:1 low gear, and the 3-ring Sag has 3.5:1. Probably feels like you're trying to start off in 2nd gear with the Muncie. My Nova had the same problem with not enough low gearing. I swapped to a 3.11 Saginaw (2-rings) and I like it MUCH better.

You might dig around and see if you can find a Vega or Monza or one of the GM clones from the late '70s. Many of those had the 3.5 Saginaw. I'd be a little hesitant to recommend the 3.11 with truck-sized back tires, but those came in '73-'74 Vegas.

If you can do without the truck for a while, try the rebuild. It's a good learning experience, and there's nothing like the smell of 90w gear lube in your hair.

Also, I think it was Speedomotive that had rebuilt Sags for sale in their catalog a few years ago. They had a guy down the street that rebuilt them, and they sold them through the mail, although shipping would probably be a little pricey.

Last edited by jimfulco; 07-04-2006 at 10:58 PM.
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Old 07-05-2006, 09:54 PM
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do they have a web site and i am going to try to rebuild it because teh tore first out drag racin
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Old 07-05-2006, 10:45 PM
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www.speedomotive.com

I had their paper catalog a few years back and they had a section for transmissions. I don't think they have them on their website, but you might email them and see if they're still available.

If you rebuild, get a pair of lock ring pliers. You'll lose your mind and possibly a few chunks of finger if you don't. Here's a list of appropriate candidates:

KD 2534
Cal-Van 268-834
Plews 72-951
Craftsman 47386 or 00947386000
Mac P21A
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Old 07-06-2006, 03:58 PM
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ok ill do that and appreciate it
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