What size and grade of bolt is used for the radiator support mount in this diagram?

A grade 8, zinc-plated bolt measuring 7/16 x 4 inch.

What is the order of parts in the radiator support mount stack-up?

From top down: zinc nut, grade 8 lock washer, original washer, washer with kit, radiator support, original spacer, big biscuit (with inner sleeve), frame, small biscuit, and a washer with kit at the bottom, all secured by the 7/16 x 4 inch grade 8 bolt.

Which washers come with the replacement kit versus original hardware?

Two washers are labeled 'washer with kit' (one above the radiator support and one below the small biscuit), while the 'original washer' and 'original spacer' are reused original parts.

Does the mount use a sleeve inside the bushing?

Yes, an inner sleeve passes through the big biscuit bushing between the original spacer and the frame.

Home/ Registry/ Ford/ Ranchero/ 1972-1976/ “Rocky”/ Photo supermotors.net/registry/media/1098763

1976 Ford Ranchero Radiator Support Body Mount Bushing Assembly Diagram

Hand-drawn exploded sketch of a body mount stack-up with labeled washers, spacer, and bolt

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Hand-drawn exploded assembly sketch of a radiator-support body mount showing washers, sleeve, spacer, and Grade 8 bolt.

AI caption October 2016 · Photo 776 of 894

This document is a hand-drawn exploded assembly sketch, photographed on a desk, showing the hardware stack-up for a radiator support body mount. From top to bottom, the labeled components are: a zinc nut, grade 8 lock washer, original washer, and a washer supplied with a kit sitting atop the radiator support; below the support are the original spacer, a large rubber bushing labeled 'big biscuit' with an inner sleeve passing through it, the vehicle frame, a 'small biscuit' bushing beneath the frame, and another kit-supplied washer at the bottom. The entire stack is held together by a grade 8 zinc-plated bolt sized 7/16 x 4 inch. The sketch is useful for anyone rebuilding or replacing radiator support / body mount bushings, since it documents the correct order of washers, spacers, bushings (biscuits), and sleeve, and specifies the replacement bolt grade, plating, and dimensions. The drawing distinguishes which parts are original hardware versus items included with a replacement mount kit. No year, make, model, or printed part numbers appear on the sketch itself; a partially visible ledger page beneath shows unrelated printed figures (295/71, 302/64).

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Frequently asked questions

What size and grade of bolt is used for the radiator support mount in this diagram?: A grade 8, zinc-plated bolt measuring 7/16 x 4 inch.
What is the order of parts in the radiator support mount stack-up?: From top down: zinc nut, grade 8 lock washer, original washer, washer with kit, radiator support, original spacer, big biscuit (with inner sleeve), frame, small biscuit, and a washer with kit at the bottom, all secured by the 7/16 x 4 inch grade 8 bolt.
Which washers come with the replacement kit versus original hardware?: Two washers are labeled 'washer with kit' (one above the radiator support and one below the small biscuit), while the 'original washer' and 'original spacer' are reused original parts.
Does the mount use a sleeve inside the bushing?: Yes, an inner sleeve passes through the big biscuit bushing between the original spacer and the frame.