Your right, it should be converted to area.This is my first exposure to brake calculations, but I think you forgot to square the value in the 'Pressure Ratio' column, which I'm interpreting as the force ratio between force applied at the MC to force at the caliper piston which is proportion to the piston areas.
P = F1/A1 = F2/A2
F1/F1 = A1/A2 = Pi D1^2 / ( Pi D2^2)
So consider the first case
A1 (@ caliper piston ) = 2* (2.24)^2 * Pi (multiple by 2 for (2) piston caliber)
A2 ( @ MC) = (1.46)^2 * Pi
A1/A2 = 4.7
It's not just the ends that are crappy, they have very small diameter adjuster sleeves as well, there are a bunch of companies that make good replacements, something like this is worth the money: https://www.dieselpowerproducts.com/p-9457-fleece-performance-tie-rod-sleeves-99-10-gm-2500-3500.aspx?gclid=EAIaIQobChMI4tCZg4-K5QIVDb7ACh2fJwpLEAQYASABEgItcPD_BwETh It turns out the GM OE style tie rod ends are pretty crappy design. Thankfully Moog has some good stuff with larger bearing surfaces.
I am not terribly worried about bending the tie rods with 31" tires. Since I am using 2" extenders on the sprinters rack, I would prefer the tie rod to bend, rather than possibly damaging the rack. The Moog units use a stronger steel according to the literature, and the tie rod body itself is a bit longer, so the shaft bit is shorter, reducing the buckling risk.It's not just the ends that are crappy, they have very small diameter adjuster sleeves as well, there are a bunch of companies that make good replacements, something like this is worth the money: https://www.dieselpowerproducts.com/p-9457-fleece-performance-tie-rod-sleeves-99-10-gm-2500-3500.aspx?gclid=EAIaIQobChMI4tCZg4-K5QIVDb7ACh2fJwpLEAQYASABEgItcPD_BwE
Perfect.I took some advice and added an unobtrusive mark of my trade. I originally though something engineering related would be make sense. But really engineering is my day job. My profession is more closely related to wandering. So I drew up a quick compass face. Its also suitably vague. I get a bit of twisted enjoyment from the idea that some poor guy is going to buy an ancient Mercedes van 18 years from now (with like 500k miles) with a 4x4 conversion. They will desperately search for the conversion company with no clues but a rusty compass mark on a subframe. MUAHAHAHAHAHAAH!
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