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Old 06-21-2014, 10:44 PM   #1
T3AMCH3VY
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69 C20 Question

I am a new member to the forums and recently purchase a 69 C20. Everything is good but top end is killing me. Right now I have a 4 speed and I would like to upgrade to a five speed. What is the first year they started adding a five speed or what would be an easy swap? I'm not building a hotrod just a simple swap, same style clutch setup ect. Second is rear gearing. Not sure what kind of rear end it has. It has a what looks like a 9in. from the front but still has a plate that can be removed on the backside. I would love to know more about the rear end and how to identify my gear ratio.
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Old 06-22-2014, 12:07 AM   #2
LockDoc
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Re: 69 C20 Question

Quote:
Originally Posted by T3AMCH3VY View Post
I am a new member to the forums and recently purchase a 69 C20. Everything is good but top end is killing me. Right now I have a 4 speed and I would like to upgrade to a five speed. What is the first year they started adding a five speed or what would be an easy swap? I'm not building a hotrod just a simple swap, same style clutch setup ect. Second is rear gearing. Not sure what kind of rear end it has. It has a what looks like a 9in. from the front but still has a plate that can be removed on the backside. I would love to know more about the rear end and how to identify my gear ratio.

Edit: I forgot to ask if this is a pickup or a Suburban/Panel truck.... If it is a pickup I will need to move the thread.

to the board.

The first link is everything you ever wanted to know about 5 speed swaps.

http://67-72chevytrucks.com/vboard/s...d.php?t=313954

The 2nd link is how to identify your rear axle ratio.

http://67-72chevytrucks.com/vboard/s...d.php?t=578793

See Post #8 or Post #19 for the ratio code location depending on what type of rear end you have...

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http://67-72chevytrucks.com/vboard/s...d.php?t=829820

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Last edited by LockDoc; 06-22-2014 at 12:40 AM.
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Old 06-22-2014, 09:06 AM   #3
T3AMCH3VY
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Re: 69 C20 Question

Thanks a lot, the links look great. Yes it is a pickup.
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Old 06-22-2014, 07:16 PM   #4
SS Tim
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Re: 69 C20 Question

Likely a 4.10 or 4.57 in a H052 axle. It was built for hauling not freeway flying.

* VIN/Model Decoders
* Power Team Charts (engine/transmission/gear ratio)
* RTFM
... Read The Factory Manuals... download 'em here

Last edited by SS Tim; 06-22-2014 at 07:22 PM.
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Old 06-26-2014, 05:42 PM   #5
T3AMCH3VY
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Re: 69 C20 Question

Thanks Tim for links.. I would at least like to find a "freeway hauling" setup lol
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