Front Caliper Help

[heyskull]

I have a 1991 Revere 600 with a knackered front caliper (where the brake seals seat they are corroded).
I have found two second hand ones for for sale on ebay both look the same but I am not certain these will fit my bike.
What is the difference in the years of bikes?
What is the year marks K,L and M?
All I am asking is how to check that these will fit properly and how do I find what my bike is as no letters K,L or M is on my frame number.

Cheers
SC

[Andy M]

According to the Haynes manual K was Oct '88 to April '91 frame number PC22-2100001 to 2101405
L does not exist.
M was April '91 to January '93 frame number PC22-2300002 to 2300271

Hope that helps.