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there are so many differences that i don't even know.. as i don't do a lot of transmission swapping.. i was just trying to help with some info..

if the junk yard book says its not an interchange.. its probably NOT..




you can always try it.. see what happens.. its a LOT quicker to find an exact match.. than to try to work within the cryptic science of GM powertrain differences..


before installing the replacement transmission..     please invest in a transmission cooler flush can..  this is done with the old transmission out so you can get at the lines..

and you might want to also.. and i am not saying anything.. but changing the filter and fluid really makes a difference in the life of the first or second most expensive part in the truck..

one thing.. scan for codes.. before buying a transmission..   it could be an easy and cheep fix..  like a burned out pressure solenoid or a bad shift solenoid..  there are HUNDREDS of trouble codes that might stop a transmission from shifting..  

good night..  

the numbers on mine are 24207965 on the trans and 2420815-6 on tailpiece and the year 2000 blazer trans has 24208015-6 stamped on the tailshaft housing.none on trans the vin was Igncs13w6y2273089 these are only #s i got so far.will chck again.  

passenger side... flat machined surface.. just above the pan gasket..