42" Rear discharge deck, WH 312-8;1985

[Stan50 31]

Hi guys, orginal post about my 1985 312-8 
https://www.wheelhorseforum.com/topic/113950-312-8-1985/

 

I do research about my 42" rear discharge deck and I found a lot of data here, I am very grateful for it all. I downloaded some files, I'm not sure but looks like my deck is 05-42MR03 - 42", unfortunately I don't have any serial # on deck. Are there many differences between similar models? 

I removed deck rear wheels

 

[gwest_ca-(File Mod) 11,829]

Some of the observed differences

Mower DNA 42" rear discharge

1976 model 65-42MR01 replaced by - (Has the flat spindle belt idler pulley mounted on a triangular plate.) - (Has multi-link hardware at the gauge wheel support)

1977 model 75-42MR01 - Both use blades with 5/8" x 3/4" double-D center hole unless the spindles have been upgraded. (Has the flat spindle belt idler pulley mounted on a triangular plate) - (Has multi-link hardware at the gauge wheel support)

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These all use blades with 3/4" center hole.

1977 model 75-42MR02 replaced by - (Has the flat spindle belt idler pulley mounted on a flat bar) (Has multi-link hardware at the gauge wheel support)

1978 model 85-42MR01 - (Has the flat spindle belt idler pulley mounted on a flat bar) (Has multi-link hardware at the gauge wheel support)

1979 model 95-42MR01 - Shares an illustrated parts list with 85-42MR01 - (Has the flat spindle belt idler pulley mounted on a flat bar) (Has multi-link hardware at the gauge wheel support)

1979 model 95-42MR02 - (Has no multi-link hardware at the gauge wheel support)

1980-1983 model 05-42MR01

1984 model 05-42MR02 - Last year for bearings with 3/4" ID

1985 model 05-42MR03 - First year for bearings with 17mm ID unless older spindles were updated.

1986-1988 model 05-42MR04

1989-1990 model 15-42RC01

1990-1992 model 15-42RC02

1993-2012 model 78350

 

Note - 17mm is .669"

With each file description page are thumbnails showing the spindle assemblies used - the original and any that replaced the originals. Compare them to what you have and all three may be different if a replacement has taken place.