Tri-z Swinger Difference?

[clutchcargo]

While I know this has been covered before, I cannot find out what the exact difference is between an 85 and 86 swingarm on the forums. What is bearing size difference between the two? Are the bearings wider or larger in diameter? I have a swingarm that needs to be rebuilt with no bearings in it, but I do not know what year it is from. Thanks!

[Yamahondaman]

1985..... 29mm in Dia......not sure of part no.
1986..... 28mm in Dia....... Part No. HK2220...ANY Brg. Place has them
same length...........
GOOD LUCK !!!!
Raffa Know's some stuff about the Diff's of the Two .......

[MTS]

is the 86 Mount Larger also? at the motor where the swingarm bolt go's thoug?