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TH400 filter change

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Old Jul 23, 2018 | 11:34 AM
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Default TH400 filter change

Hi,

I have a friend that is changing oil filter in his TH400
We are wondering, about the bolt for the filter, must the filter be so loss?

Or has somebody in the past, used a wrong bolt, or is an "adaptor" missing?

Thx,
John


Last edited by c3_dk; Jul 23, 2018 at 11:34 AM.
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Old Jul 23, 2018 | 02:14 PM
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Yes. it's designed to "float" on the bottom of the pan. Some of the early 400's had a sleeve that went over the bolt after it passed thru the filter. Later they just used a shouldered bolt. That picture is correct.
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Old Jul 23, 2018 | 02:55 PM
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Aftermarket companies, such as B&M, make a kit which adapts what I believe was a Chrysler filter with a steel spring that placed tension on the filter when the pan is installed
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Old Jul 23, 2018 | 03:31 PM
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Originally Posted by TimAT
Yes. it's designed to "float" on the bottom of the pan. Some of the early 400's had a sleeve that went over the bolt after it passed thru the filter. Later they just used a shouldered bolt. That picture is correct.
Originally Posted by MelWff
Aftermarket companies, such as B&M, make a kit which adapts what I believe was a Chrysler filter with a steel spring that placed tension on the filter when the pan is installed
Great thx both, we will bolt on the pan now :- )
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Old Jul 23, 2018 | 04:29 PM
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BTW we installed a Trans Go kit :- )

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Old Jul 23, 2018 | 04:49 PM
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Good choice on the Trans-Go. I've used a bunch of them on rebuilds I've done. I usually set them up for severe service, Police/Taxi, and never had a problem. Nice firm shifts under light throttle and will still hit pretty hard under heavy throttle.
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Old Jul 24, 2018 | 03:39 AM
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Originally Posted by TimAT
Good choice on the Trans-Go. I've used a bunch of them on rebuilds I've done. I usually set them up for severe service, Police/Taxi, and never had a problem. Nice firm shifts under light throttle and will still hit pretty hard under heavy throttle.
We did the same.
We also made one last year, the owner of that 69 was very happy with the outcome also.

It's a good and cheap way, of getting a nice transmission upgrade.
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Old Jul 24, 2018 | 07:19 AM
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I have to install a TH400-1&2 kit too behind a 383. Do you mind sharing how you set them up in terms on hole diameters and springs?

Thanks.
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Old Jul 24, 2018 | 09:56 AM
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Originally Posted by fede
I have to install a TH400-1&2 kit too behind a 383. Do you mind sharing how you set them up in terms on hole diameters and springs?

Thanks.
Hi,

Regardless if the engine is in or out, then I would make 3 "studs" as guide for the gaskets and plate. Please see my picture above.
We took the "middel" road, according to the manuel, that means remove 1 ball, and drill a hole, if think it is 2.4mm (please check your self) and the orange spring.
Remember to when you reinstall, then the bolts for valve body, the small bolts are 13nm and the big boltes are 17nm (please confirm yourself)

Also install a olie drain plug in the pan, they cost nothing, and it makes it nicer if you have to go in and change your springs later.

Thx,
John



http://www.transgo.com/video.html
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