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Snowthrower DNA
All have 2 idler sprockets for the drive chain. Started out as 37" wide and the added wings make them 42" wide.
1966-67 model ST-376
1968 model 6-1211
1969 6-6211 plus 6-9111
1970-72 model 6-6212 plus 6-9112
All without front quick hitch so not a direct fit for 1973 and later tractors. Snowthrower rear frame mounts in the front of the tractor frame using 2 bushings and a long 3/8-16 x 8-1/2" bolt.
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Front quick hitch introduced. Snowthrower rear frame has a 5/8" diameter round bar.
1973-74 model 6-6212 plus 6-9113
1974 model 6-6213 - (First model to include 8-0221 extensions without the front straight return - just a flat plate)
1975 model 6-6214 - (First model to include 8-0221 [103552 replaced by 93-1617 and 93-1617-01] side extensions with the front straight return. First model to have a cable spool on chute rotating crank)
1976 model 6-6215 - This one -
1976 model 66-42ST01 - and this one are likely identical. The model number format changed.
1977 model 76-42ST01 - This one
1978 model 86-42ST01 - and this one
1979 model 96-42ST01 - and this one plus 1980 may be all the same. They started using a different model number for each model year.
1980 model 06-42ST01 - (Last 42" model to use 4 grooved rollers for the chute)
1981-82 model 06-42ST02 - (First model to use plastic collar for the chute but was a retrofit for older models. Last model to use wheels)
1983 model 06-42ST03 - (First model to use skids)
1984-87 model 06-42ST04 - (Last model to use a 3/4" diameter driveshaft)
1987-89 model 06-42ST05 - (First model to use a 7/8" diameter driveshaft)
1990 model 06-42ST06
1991-93 model 06-42ST07 - (First model with tall chute retained by 3 individual grooved retainers)
1993-2001 model 79360
2002-2007 model 79362
