Thanks for the input everyone. Cfjunkie I think I’ll do what you said going with 40 inch lbs in increments of 5 as my manual also has nothing about it.

I also think your on the right track with the 10inch lbs variation. I’m a auto tech and I get me torque wrenches tested atleast once a year and those are $500-$700 tools so I’m betting 2 brand new wheeler fat wrenches would probably show different number never mind different brands.