Grade 70 5/16 will work fine. "Lifting" chains have to be certified and have a tag on them showing the certification. Any chain sold retail will say "not for lifting" you have to go to a rigging supply to get them.. Just do the job safely by not working under it while it is suspended
My local dealer carries Leer and RSI, there is a ARE dealer in my county that I will contact, no Swiss dealer within 300 miles.
It appears RSI is having supply/delivery issues right now
Any input on Leer 100XR vs 100XQ? It’s $1000 difference in price.
I’m looking at cab height camper shells for my 2019 F-150. I like the looks of the Leer 1000XQ and the RSI Smart Cap is interesting. What cap do you like (or dislike)?
Some reading:
https://www.stle.org/images/pdf/STLE_ORG/BOK/LS/Condition_Monitoring/Oil%20Analysis_Keeping%20Military%20Systems%20Running%20Smoothly_tlt%20article_July14.pdf