Finally, new wheels & tires for Lola

Sure, no problem. I’ll give you several of the key links, and each is self-explanatory for it’s purpose original size ref, upsizing, offset/clearance etc. you’ll find most of them cross-linked inside of each page but just sharing them separated here for you:

1968 Mercury Cougar - Wheel & Tire Sizes, PCD, Offset and Rims specs | Wheel-Size.com

Rim & Tire Size Calculator. Custom Offsets - Wheel-Size.com

Tire Size Comparison

Tire Size Calculator

Wheel Offset Calculator

And for reference, The Legendary Wheel Co. (owned by Holley now since they bought out Scott Drake) wheels offered are beautiful finishes & all taken from original 1960s, early ‘70s OEM designs and are built to fit on our cars without issue: Legendary Wheels (Official Site) - Classic Muscle Car Wheels & More | Holley

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Thank you so much!

I installed Global West suspension products with the upper control arm ball joint off center to add more caster (or is it camber…I forgot), so I need all the help I can get to zero in on my sizes. Even then, I want to do a physical check to make sure the wheel backspace is correct before making my wheel purchase.

Your assistance is much appreciated!