E32-3 genoa car blocks

Does anyone know which genoa Schaefer spring loaded lead block model is the replacement for the original on the E32-3? The track is 1 1/4" I have the original in my hand and there is no marking to let you know. it looks like their models 704-92 and 705-92 with a 2250 lb. safe working load are probably adequate. What have others done ?Any thoughts?
Thanks
Bob

Mine are stainless blocks, so I'm going to guess either 08-92 or 705-92 (the 704-92 are aluminum blocks on a stainless car)

Another option is the Lewmars: also fit 1-1/4" track, with spring-loaded plunger, and very strong.

https://www.defender.com/product.jsp?path=-1|118|2358559|2358568&id=130946

If your on the inside track. Switch to gaurhauer just awesome. Call first you need to tell them about the height of the t. Schaefer track is a little lower than today’s standard. They will make the fit. There system is strong. The outside track cars with a 155 may be a different story because of the extreme angles on the block