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Old 06-13-2012, 01:09 PM   #1
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Default LSS Transmission compatibility

I have a 96 LSS that needs a tranny and i am needing to know how to match a used one from another car.Is there only certain years and vehicles that are compatible? Is there a list of these compatibilities anywhere?
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Old 06-13-2012, 08:45 PM   #2
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Which engine do you have?
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Old 06-14-2012, 01:38 AM   #3
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It is a 3800 series II non supercharged.
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Old 06-14-2012, 06:33 AM   #4
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4T60-E series. You don't have the Supercharged version, so that throws out the 4T60-E HD trans. Very common trans. You could yank one out of a Park Ave, Bonneville'* etc, but you may run into gear ratio differences. And, I'm not sure on the year range. Boosty is our tranny guru and should chime in shortly.
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Old 06-14-2012, 09:34 AM   #5
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There is a tag on the differential end (passenger side) on the back of the trans. That gives you everyting you need to know.
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Old 06-14-2012, 06:34 PM   #6
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does the tag info have to match exactly?
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Old 06-14-2012, 08:24 PM   #7
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There are two different gear ratios available. If that is not a concern then any 96 NA Park Ave, Lesabre, Bonneville, or 88 or 98 should work.
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Old 06-14-2012, 09:04 PM   #8
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I'm seeing 4 different gear ratios. But, its also dependant of the body style. Have a looky.

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Old 06-14-2012, 09:54 PM   #9
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Ok i guess this means that only a tranny from another 1996 model will work. The one my friend has came from a 94 Buick can't remember whether it was a Park Avenue or a Le Sabre.
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Old 06-14-2012, 10:01 PM   #10
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Uhh, kinda, maybe, not sure. Right now, I have a 96 4T60-E-HD in my 97, with a supercharged engine from a 99 Buick Riviera. Thus why my car is so confused.
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