1982 k5 blazer w/305 want to install a 700R4 trans - Hot Rod Forum : Hotrodders Bulletin Board
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Old 07-07-2010, 08:31 PM
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1982 k5 blazer w/305 want to install a 700R4 trans

I have a 1983 K5 Blazer 2 wheel drive with a 305. My Transmission just went out which was a 400 3 speed and I want to change it for a 700R4. Can I do this if so what problem will I have. all I really know is that the 700R4 has some electrical components. I'm not to savay on transmission. Thanks

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Old 07-07-2010, 08:44 PM
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Are you sure you had a TH400 in an '83 K5 Blazer? It should have had an overdrive automatic already by 1983, or maybe a TH350.

The swap to a 700R4 is fairly easy, but you want one of the late 80's versions, after they improved the reliability. You do need an electrical kit to activate the lock-up torque converter.

Bruce
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Old 07-07-2010, 10:18 PM
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I do have the 400 the guy before me put it in. How difficult is it to install the electrical kit.

Quote:
Originally Posted by 75gmck25
Are you sure you had a TH400 in an '83 K5 Blazer? It should have had an overdrive automatic already by 1983, or maybe a TH350.

The swap to a 700R4 is fairly easy, but you want one of the late 80's versions, after they improved the reliability. You do need an electrical kit to activate the lock-up torque converter.

Bruce
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Old 07-07-2010, 10:31 PM
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How does that truck run with that 305 in it?
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Old 07-08-2010, 05:02 AM
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This article might give you a better idea of a simple electrical installation - he uses a manual switch. http://www.smokemup.com/tech/700r4.php

This kit is fully automatic http://www.tciauto.com/Products/Inst...76600_inst.htm

Bruce
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