Zilla trans autopsy photos - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 09-29-2005, 12:50 PM   #11
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I see a hitch layin on the ground, did the bonnie finally loose some "unnecessary" weight? :P
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Old 09-29-2005, 01:22 PM   #12
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Quote:
Originally Posted by willwren
The last pic is all I kept.
the speed sensor rotor? any reason you kept that?
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Old 09-29-2005, 01:30 PM   #13
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Quote:
Originally Posted by Garb
Boy I wish I knew what the heck I was lookin at
quick version (I'm not 100% on these, as my time in transmissions was with the RWD, but they're very similar)...

box
cooler
clutch housing (maybe the 3/4 clutch? i dunno)
closeup of the groves in the housing that the clutch packs rest in
red green takes on a 4t60
inside of the diff housing - the hole is where the speed sensor pops through
valve body spacer plate gasket
accumulator gaskets
roller clutch (only allows rotation in one direction)
some gasket
seals, seals, and more seals
band (not sure which band is which, but it'* a band)
both bands (they grab the outside of housings, stopping rotation)
more seals and a solenoid
clutch pack
apply piston
speed sensor, solenoid
another clutch pack
output shaft
input/pump shaft
box o junk
diff, chain, what looks to be the input internal gear, vacuum modulator, speed sensor rotor, and what looks like the internal reaction gear. oh, and the cooler.

but i might be wrong on a few of those - I haven't worked with trannies for almost a year now...
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Old 09-29-2005, 02:37 PM   #14
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Thanks Bill!
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Old 09-29-2005, 03:07 PM   #15
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Hitch is from the 93. Going on the 95.

Speed sensor rotor is still attached to the diff.

I'll get back to labels and descriptions soon, but that big drum is 2nd gear with a closeup of the wear on the teeth.
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Old 09-29-2005, 03:33 PM   #16
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Quote:
Originally Posted by willwren
Hitch is from the 93. Going on the 95.

Speed sensor rotor is still attached to the diff.

I'll get back to labels and descriptions soon, but that big drum is 2nd gear with a closeup of the wear on the teeth.
well fooey on me. looked like it from the top. is it a helically cut gear then?

<edit> never mind. with a good 300% zoom, I can see it'* a helical cut gear, not to mention it'* too thick to be a speed sensor... so is it a sun from a planetary?
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Old 09-29-2005, 07:20 PM   #17
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Cool way beyond my car knowledge
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Old 09-29-2005, 08:44 PM   #18
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I dont mean to insult your Bonneville....but that second gear drum looks awfully thin....I am surprised most transmissions hold up as well as they do...seeing how cheaply theyre made! How many miles were on it when it exploded? Ive got 127,000 on my 97...how long do you think ive got?
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Old 09-29-2005, 08:53 PM   #19
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Quote:
Originally Posted by int_53185
I dont mean to insult your Bonneville....but that second gear drum looks awfully thin....I am surprised most transmissions hold up as well as they do...seeing how cheaply theyre made! How many miles were on it when it exploded? Ive got 127,000 on my 97...how long do you think ive got?
Ummm....I think it held up pretty good considering what my car puts down and how I use it. That wear on the gear was strictly because the 2nd gear clutches failed, and the shift kit fixed that problem. The new second gear should outlast the rest of the car.
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Old 09-30-2005, 08:13 AM   #20
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Quote:
Originally Posted by int_53185
I dont mean to insult your Bonneville....but that second gear drum looks awfully thin....I am surprised most transmissions hold up as well as they do...seeing how cheaply theyre made! How many miles were on it when it exploded? Ive got 127,000 on my 97...how long do you think ive got?
if you're insulting his bonnie for that, you'd better stay away from just about every tranny on the market... most are incredibly similar to that, if not thinner...
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