This should help.
I would start at numrich gun parts corp.they can be found on the web.
Winchester, Its a very old Rifle, but the 53 was what turned into the model 70, Hince Winchester Model 53 and some pre64 model 70 parts should fit.
Numrich gun parts
The sears model 6c-22 was made Winchester/ same as Winchester model#490
E-gunparts.com click on Winchester then 74 at the top you can buy it for about $1.50
Try Numrich Gunparts. They have a wide variety of parts and schematics for older firearms.
I would start my search at Numrich gun parts corp.They may be found on the web.
I would start my search at Numrich Gun Parts Corp.
It is the same as a Winchester model 141 and parts are available from Numrich gun parts
You could try Numrich gun parts corp.
Numrich Gun Parts Corporation - $25.70