OutdoorKing Repair Forum Forums Restoring, Customising and Modifying Reel-Type Mowers SB 45 - dual project (newbie)

Thanks for the advice, BB!
So, I cleaned the chain cases this afternoon and to my eye, they look a slightly different colour:

Which one should I take to be matched? They are both the same model no. Mower 1 is Mower no. 02061 and Mower 2 is mower no. 00348. So, would I take Mower 1 because it's 'newer'?

While I've brought Mower 2 into the discussion (sorry to confuse), the number on the Briggs & Stratton motor is 80102 0233-01 74101701. So, it was manufactured on the 17th Oct 1974? Would you consider this the original motor for this mower?





Please leave your advice regarding chains, sprockets, bed knife, etc. I will have to replace the reel ($$$) as there is a part of one blade that has snapped off. Can anyone point me in the direction of an affordable reel for sale? I'll check engine mounts tomorrow.

Am I right in saying that the rear roller and cylinder cutter bearings should be replaced while I am doing this? Is there anything else that is considered a 'must' to replace/service while I have everything apart in the coming weeks?