Chevy Express Transmission

7 messages, Last post on Dec 25, 2008 at 6:02 PM

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#4 of 7 by 1320jon Nov 11, 2008 (8:04 am)
Derale makes some pretty cool pans. They put tubes in the bottom, with a fin inthe tube to "hopefully" get air flow and help cooling. They ussually sell a standard pan and a deep pan. The standard pan I think is alittle deeper then oem due to the addition of the tubes. Might be worth investigating. Replies to this message: tireman9 (Dec 25, 2008 6:02 pm)
#5 of 7 by newsie23 Nov 24, 2008 (7:21 am)
Use the 'new' Dextron vi fluid - it is backward compatible, and will soon be the 'only' Dextron. Consider a friction modifier. I use Tufoil. I believe the main reason they are not 'recommended' is they would fail the emission, warmup test. When I used it the first time in a high mileage vehicle, I had to block the radiator to get enough heat from the heater, at cold temperatures.
#6 of 7 Re: [1320jon] by tireman9 Dec 25, 2008 (6:02 pm)
Replying to: 1320jon (Nov 11, 2008 8:04 am) The deep pan will not work as it only leaves about 1/4" clearance to the exhaust pipe that runs under the rear of the pan. Derale only makes a deep 4" pan for the 4L80L.