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Input shaft

Freebeer187

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This is an input shaft right?


I remember at one of the transmission shops the guy said that the stock input shafts had very little thread on them and would eventually shave.

He said the hardened ones they would heat treat them to "harden" them. Is this what u guys mean when you say hardened input shaft or are you talking about a different metal used or what?
 

Mike K

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If that's a very antiquated looking torque converter then yes, that's an input shaft. There's no common denominator when it comes to failures unless you're looking at a specific transmission. On one transmission it might be the splines that sheer off and on another the shaft might just break clean in half.

On the W Bodies the splines generally don't fail. It's the shaft itself that fails, generally at it's thinnest point. The replacement shafts use a harder metal and thicker walls to prevent future breakage.
 

Yaj Yak

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when i got my input shaft from intense... (after i realized the other one whos name remains unsaid... but rhymes with e e tee... was junk.. ) i opened the box to see that holy shit. it was a small piece of 500 dollar metal... but the piece to keep my car going was worth it.

arent they billet?
 

ilikemtb999

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If that's a very antiquated looking torque converter then yes, that's an input shaft. There's no common denominator when it comes to failures unless you're looking at a specific transmission. On one transmission it might be the splines that sheer off and on another the shaft might just break clean in half.

On the W Bodies the splines generally don't fail. It's the shaft itself that fails, generally at it's thinnest point. The replacement shafts use a harder metal and thicker walls to prevent future breakage.
That looks to be a pump to me not a converter.
 

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