Nearly 30 years of obsessively cataloging, photographing, and taking video of each part means it will fit your 1979 Mercury Grand Marquis Yukon Flange Yoke - Ford 7.5" Truck [5" OD] - Rear Differential Differential Pinion Yoke.

Period. No Hassle. GUARANTEED.

We cover round trip shipping if we make a mistake.

Check out the video below to view the Guaranteed Exact Fit process from start to finish!