TH400 Dipstick

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Jan 17, 2008 | 01:39 PM

JimT

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Burning Brakes

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From: Orange Park Florida

TH400 Dipstick

I am looking for the length of the dipstick that fits a 350, TH400 automatic transmission. The previous owner of my '72 replaced the original dipstick with an aftermarket chrome stick and I'm not sure it is the correct length. Filling the tranny with fluid takes a little more than the tranny states is required. The one I have measures 24" from the tip to the inside bottom of the cap. Does this sound right.

Jan 17, 2008 | 04:24 PM

Marty 74

Heel & Toe

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JIM-

See my post regarding my 74 THM -400 trans dipstick length. There was a reply there that might help you out.

Original tube # 340659 has been discontinued with NO supercedding number. #10017293 is a SERVICE Replacement number for the trans dipstick itself, that's still good.
I'm not sure what length it is, but it'll run you about $8.00 to find out.

Now if I could just find someone to measure their ORIGINAL 1974 THM-400 dipstick length, I'll have an answer to my question.

Marty

Jan 17, 2008 | 05:39 PM

James

Burning Brakes

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From: Johnston Iowa

I saw this the other day when I was on TCI's website. I need to get one too. I see they have a better design to eliminate leaks and also lock in place:
http://www.tciauto.com/Products/Comp...bes-mounts.asp

Jan 17, 2008 | 06:23 PM

CA-Legal-Vette

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From: Scottsdale Arizona

Quote:

Originally Posted by Marty 74

JIM-

Now if I could just find someone to measure their ORIGINAL 1974 THM-400 dipstick length, I'll have an answer to my question.

Marty

I'll do it when I get home. I presume you want the length from the shoulder of the cap to the full mark?

Jan 17, 2008 | 08:05 PM

JimT

Thread Starter

Burning Brakes

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From: Orange Park Florida

Exactly! From the tip to the shoulder of the cap.

Jan 17, 2008 | 08:14 PM

CORVETTEKARL

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From: Wayne NJ

22.5 inches from the top of the tube to the full mark. That's what my original 72 TH400 dipstick measures.

Jan 18, 2008 | 09:37 AM

JimT

Thread Starter

Burning Brakes

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From: Orange Park Florida

Thanks guys, that's exactly what I needed to know.

Jim

Jan 18, 2008 | 11:38 AM

7T1vette

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From: Crossville TN

That assumes your tube lengths are the same. To be safe, you should measure the tube length (top of tube to place it enters the block) and take into account any length differences.