TH400 Dipstick

Reply Subscribe

Thread Tools

Search this Thread

Jan 17, 2008 | 01:39 PM

JimT

Thread Starter

Burning Brakes

Joined: Nov 2006

Posts: 893

Likes: 7

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

Joined: Aug 2007

Posts: 17

Likes: 0

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

Joined: Nov 2000

Posts: 948

Likes: 0

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

Race Director

Joined: Jul 2004

Posts: 12,703

Likes: 329

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

Joined: Nov 2006

Posts: 893

Likes: 7

From: Orange Park Florida

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

Jan 17, 2008 | 08:14 PM

CORVETTEKARL

Advanced

Joined: Jul 2006

Posts: 51

Likes: 0

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

Joined: Nov 2006

Posts: 893

Likes: 7

From: Orange Park Florida

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

Jim

Jan 18, 2008 | 11:38 AM

7T1vette

Team Owner

Joined: Jan 2006

Posts: 37,637

Likes: 3,118

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.