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Old 06-12-2012, 10:12 PM
bradf92's Avatar
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Default 700r4 to turbo 400 swap????

i have a 1989 chevy k2500 4x4 with a tbi 350 and a turbo 400 trans. i also have a 1986 camaro iroc z-28 with a carburated 350 and it has a 700r4 i was trying to find a way to swap the transmisions around to get better fuel mileage out of the truck because it is driven more. what all wil i need to aquire/buy to complete the swap?
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Old 06-13-2012, 06:31 AM
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Basically, the transmission output shaft (lose the extension housing) and the tranny to transfer case adaptor. While you're in there, make darned sure that the reverse piston and stack has the 5 fiber setup. Many Cameros used a 4 disc setup, but behind a 350, you should be okay.

Also, check the loom for the converter lockup feed, the brake switch and possibly the PROM in the ECM may have to be changed.

The dipstick/tube and throttle cable/bracket "should" interchange.

Think long and hard about this tho, as any 4L60 older than a '91 is a meltdown just waiting to happen. GM didn't get this guy perfected until 1991.

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Old 06-14-2012, 01:41 PM
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thanks bud i appreciate it
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