TH350 Rebuild

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Jul 9, 2007 | 05:58 PM

79corvette

Thread Starter

Racer

Joined: Sep 2002

Posts: 293

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From: Englewood CO

TH350 Rebuild

I am currently rebuilding my TH350 and I noticed the springs on the direct clutch piston assembly were not all the same height. Are they supposed to be all the same height and are they OK to use?

Thanks for the help.

Jul 9, 2007 | 09:49 PM

SIXFOOTER

Le Mans Master

Joined: Jan 2006

Posts: 9,192

Likes: 27

From: Boca Raton Florida

That don't look right, the yellow springs are the short ones. Looks like someone been there before you got there. I don't have a book on the 350 but my 2004R book indicates them all the same length.

Jul 9, 2007 | 09:56 PM

79corvette

Thread Starter

Racer

Joined: Sep 2002

Posts: 293

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From: Englewood CO

Yeah, those two yellow springs are a lot shorter than the rest. The others dont' vary as much, but do vary. Guess I should go back to the tranny place and buy some new springs.

Jul 9, 2007 | 10:05 PM

bluegtp

Drifting

Joined: Nov 2004

Posts: 1,630

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2020 C3 of the Year Finalist - Modified

kinda off your subject, but how difficult is the 350 rebuild with no transmission experience?

i'm back and forth on buying on from jegs/summitt, getting a local someone to rebuild mine, or rebuilding mine myself...

my background, i'm no mechanic....I'm usually not scared of pulling stuff apart to rebuild.....I just recently rebuilt my l-48 and made it a 383 stroker.....

Jul 9, 2007 | 10:16 PM

SIXFOOTER

Le Mans Master

Joined: Jan 2006

Posts: 9,192

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From: Boca Raton Florida

Blue, I did my 2004R with Zero experience. I got a book and a video off ebay and bought most of the internals there too. Nuthing to it.
Do a search for my screen name and 2004R, there are all the links to the parts and books I used.
For what its worth, if you need a tranny rebuild I would definately do the 2004R upgrade, gets you a better 1st and over drive

Jul 9, 2007 | 10:33 PM

79corvette

Thread Starter

Racer

Joined: Sep 2002

Posts: 293

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From: Englewood CO

If your thinking about building a tranny, I'd say go for it. So far mine has gone pretty well (will find out more when it is in the car lol). As SIXFOOTER advised, books and videos are very good to see how it all works and goes together. Also take a lot of pictures as it comes apart, might help with reassembly. SIXFOOTER's recomendation for the OD tranny is also really good.

Jul 9, 2007 | 11:52 PM

bluegtp

Drifting

Joined: Nov 2004

Posts: 1,630

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2020 C3 of the Year Finalist - Modified

I've already checked out the 700r4.....and decided it's not worth the extra cash to install/build.....i just don't drive the car enough to worry about it.....thanks for the info though....i may just get the nerve up and do it myself.....thanks again!

ryan

Jul 10, 2007 | 12:49 PM

7T1vette

Team Owner

Joined: Jan 2006

Posts: 37,637

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From: Crossville TN

The spring lengths in the clutch pack aren't all that critical...it just needs to have about the correct amount of total force and be reasonably well balanced around the retainer. Whoever built that one up took "whatever" came out of the bin...but they were probably all the same part number--just different batches (years, manufacturers, etc). Space the shorter ones around the retainer; don't put them together. It should work just fine.