Th400 Dipstick Length

Pierre

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Recently I had my TH400 dipstick break. Current dipstick length is from end to end 35 inches, and I cannot seem to find this exact same size online.

With that being said from everything I read the th400 dipstick should be 25 inches long not 35 inches.

Has anyone ever seen this longer dipstick in a th400? Or is it possible someone before me used a th350 dipstick tube and stick? Is it possible to use a th350 tube/stick in a th400?
 

Vbb199

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I bought a stock 6 lug converter th400 from a camper that had a super long dipstick in it.
 

Pierre

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I bought a stock 6 lug converter th400 from a camper that had a super long dipstick in it.

Not sure what my th400 came out of but it does have a very long dipstick which I cant seem to find anywhere else. Currently its in a 1985 K20. I am worried about getting the stock th400 length tube because then it will be almost 10 inches lower and un-reachable.
 

Vbb199

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I'm gonna measure my own th400 dipstick and tube right quick out of curiosity

Edit: the one in my c10 is 27"
 

Vbb199

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Alright, I looked at results for like a 1978 p30 with a 454 , and it uses a much longer dipstick apparently, like a little over 40" lol
 

Matt69olds

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The full mark should be at the same level as were the pan/case parting line. If your dipstick is too short (HA!) use a tubing cutter to trim just a little off the dipstick tube.
 

VMF531

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GMC 1991 Suburban 3/4T, 4wd, 6.2L diesel.

Last year I had a problem in that the dip stick tube broke at the mounting.

I found the tube by doing a search using the part number on the dipstick 15659781. My dip stick length measures 34 1/4” with the handle folded.

Do a search for your dip stick part number.

I found this web site with drawings. Hope this helps.

 

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