1991 Chevrolet S-10 engine and transmission

1991 CHEVROLET S-10
184,000 MILES • 4.3L • V6 • 2WD • AUTOMATIC
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CREEPERNANA
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Will a gm 5l50 or 6l50 transmission fit a gm 4.3l v6 engine?
May 31, 2015 at 8:25 AM
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HMAC300
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gm has no 5150 06150 transmissions it's either a 4L60 or 4L80 for your year
May 31, 2015 at 10:18 AM
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CREEPERNANA
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Gm does have a 5L50 transmission as well as a 6L50 transmission. Im asking if they will fit not what transmission came with it...
May 31, 2015 at 2:10 PM
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HMAC300
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what are they out of as I've never even heard of those model transmissions. And I worked on transmissions in engineering for 20 some years
May 31, 2015 at 3:31 PM
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HMAC300
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in answer to your question it would have to be same length as well as bolt pattern which means if it came out of a 305/350 it would bolt up however the torque converter would need to be for a 4.3L due to balance otherwise it would shake like heck when running.
May 31, 2015 at 3:35 PM
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HMAC300
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correction after looking this model up on line this is a electronic controlled trans which will need a computer to operate it . Yours is obd1 and the 5L50 is OBD2 unless you have a computer for it won't work at all. The model Cadillac that this was used on does not have the same bolt pattern either.
May 31, 2015 at 3:40 PM