What is the GM part number for the rear transmission mount bracket?

Callout 5 in the legend lists part number 3975850, RR MOUNT BRKT (rear mount bracket).

What part numbers are shown for the front mount brackets?

Two front mount brackets are listed: 3975847 (callout 2, FRT MOUNT BRKT) and 3975846 (callout 6, FRT MOUNT BRKT).

What hole size is specified for the mount bracket holes?

The diagram notes .414/.424 DIA. HOLES AT DIMPLES.

What fasteners are called out for the transmission mount brackets?

The legend lists SCREW ASM part number 3945492 (callout 1) and SPECIAL NUT part number 3792287 (callout 3).

What are the center mount bracket part numbers?

Center mount brackets are 3975849 (callout 4, CTR MOUNT BRKT) and 3975848 (callout 7, CTR MOUNT BRKT).

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1970 Chevrolet Camaro Automatic Trans Mount Bracket Exploded Diagram & Part #s

Chevrolet assembly manual page with exploded transmission mount brackets, part numbers and dimensions

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Exploded parts breakdown from a Chevrolet assembly manual showing transmission crossmember mounting brackets with numbered callouts and part numbers.

AI caption December 2018 · Photo 51 of 68

This is a photographed page from a GM/Chevrolet factory assembly manual (Chevrolet Motor Division, Drafting Graphic sheet) held in a ring binder. The page is an exploded parts illustration covering an automatic transmission mounting arrangement — the caption at the edge reads "AUTOMATIC TRA[NS...]" and a leader in the drawing is labeled "TRANS L[...]". A numbered legend lists seven parts with GM part numbers: 3945492 SCREW ASM (1), 3975847 FRT MOUNT BRKT (2), 3792287 SPECIAL NUT (3), 3975849 CTR MOUNT BRKT (4), 3975850 RR MOUNT BRKT (5), 3975846 FRT MOUNT BRKT (6), and 3975848 CTR MOUNT BRKT (7). The exploded view shows the crossmember/mount brackets with fasteners and locating dimensions (1.20, 2.20, 1.47, 18.47 PV) and a hole-size note reading ".414/.424 DIA. HOLES AT DIMPLES," plus a circled reference "30 P.V." A reader can identify the correct GM part numbers for the front, center, and rear transmission mount brackets, the mounting screw assembly and special nut, and the drilling/locating dimensions for the mount holes. The page title and some diagram areas are cut off or hidden by the binder ring, so full applicability text is not visible.

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Frequently asked questions

What is the GM part number for the rear transmission mount bracket?: Callout 5 in the legend lists part number 3975850, RR MOUNT BRKT (rear mount bracket).
What part numbers are shown for the front mount brackets?: Two front mount brackets are listed: 3975847 (callout 2, FRT MOUNT BRKT) and 3975846 (callout 6, FRT MOUNT BRKT).
What hole size is specified for the mount bracket holes?: The diagram notes .414/.424 DIA. HOLES AT DIMPLES.
What fasteners are called out for the transmission mount brackets?: The legend lists SCREW ASM part number 3945492 (callout 1) and SPECIAL NUT part number 3792287 (callout 3).
What are the center mount bracket part numbers?: Center mount brackets are 3975849 (callout 4, CTR MOUNT BRKT) and 3975848 (callout 7, CTR MOUNT BRKT).