The Stovebolt Site Forums The Shop Area Driveline 1954 Rear Motor Mount Bolt Question

I'm having a hard time finding the answer so I'd like to ask the audience:

What are the bolt dimensions (thread & length) for the bolts that connect the rear motor mount to the bellhousing on a 1954 Chevy? A little gremlin seems to have absconded with the bag it was in and for the life of me I cannot find information on the bolts dimensions. Thanks!

Greetings from New Jersey,

I do believe your 1954 ( 1 ) ton uses the
same REAR motor mounts as my 1954 3/4 ton.

The REAR MOUNTING BOLTS
were originally:
GM # 0.002 - GM # 3745450

Bolt Spec:
1/2 " X 20 thread X 3 & 1/2 " O.L.

GM # 3745450

Superseded to:
GM # 180192
Superseded to:
GM # 9419115
Superseded to:
GM # 455005

GM # 455005 is available GM NOS

at:

Tim Short Chevrolet
Manchester, KY
phone:606-658-4468
They have ( 11 ) - GM # 455005

&:

Friesens Chevrolet
Sutton, NEB.
phone:402-773-5538
They have ( 11 ) - GM # 455005

PIC@photobucket

http://i669.photobucket.com/albums/...NOSMOTORMOUNTKIT3760997__zpsa41376dd.jpg

George
in
New Jersey

Thank you so much. I`ll go get a few tomorrow.

Greetings from New Jersey,

I covered the parts history of the
REAR Motor Mount ...BOLT in my first
post.
Most of the parts in the Motor Mount kit
are still available...GM NOS.

This post may help others find GM NOS
rear motor mount parts that are still available.

Photo of Motor Mount Kit
showing supersessions part numbers.

PIC@photobucket

http://i669.photobucket.com/albums/...OSMOTORMOUNTKIT3760997_b_zpsfa81b542.jpg


UPPER MOUNT
original GM # 0.027 - GM # 3705444
superseded to:
0.027 - GM # 3763761

Upper Mounts are hard to find GM NOS.
They are being re-produced by many vendors.

South Side Automotive
Minneapolis, MINN.
phone:612-727-2404
They have: ( 11 ) GM # 3705444 Upper Mounts
Ask for Jody or Heath

Upper Mount PIC@photobucket

http://i669.photobucket.com/albums/...Original_Upper_Mount_jpg_zpsbf3da714.jpg


Lower Mount
original GM # 0.027 - GM # 3705447
superseded to:
0.027 - GM # 3789949
superseded to:
GM # 0.027 - GM # 14009321

Lower Mounts are available GM NOS.

Dan's Obsolete
Chinook, Montana
phone:406-357-2615
They have: ( 3 ) GM # 14009321

Dotson Chevrolet
Big Stone Gap, Virginia
phone:276-523-0130
They have: ( 1 ) GM # 14009321

Safeway Chevrolet
Burgaw, GA.
phone:910-259-5727
They have: ( 1 ) GM # 14009321

Nesenger Chevrolet
Medford, N.Y.
phone:631-475-0798
They have: ( 1 ) GM # 14009321

South Side Automotive
Minneapolis, MINN.
phone:612-727-2404
They have: ( 1 ) GM # 3789949 Lower Mount

ebay has ( 2 ) Lower Mounts
on ebay NOW.
Go to ebay & type in 3789949
There are ( 2 ) being sold for $8.00

Lower Mount PICS

http://i669.photobucket.com/albums/vv57/glp0329/Motor_Mount_2_/Lower_Mounts_ebay__zpsfc72596b.jpg

http://i669.photobucket.com/albums/..._Rear_Lower_Motor_Mount__zps2494fa27.jpg

http://i669.photobucket.com/albums/vv57/glp0329/Motor_Mount_2_/Lower_Mount_14009321_zps9e0be91d.jpg

Motor Mount Locks

original GM # 0.002 - GM # 3717280
superseded to:
GM # 0.002 - GM # 3763763
with a design change - see PIC

http://i669.photobucket.com/albums/vv57/glp0329/Motor_Mount_2_/Motor_Mount_Locks__zps7f58dd5d.jpg

Motor Mount Locks are available.

Dans Obsolete
Chinook, Montana
phone:406-357-2615
They have: ( 17 ) GM # 3717280 - ORIGINAL DESIGN LOCKS
&
( 91 ) GM # 3763763.

Friesens Chevrolet
Sutton, NEB.
phone:402-773-5538
They have: ( 5 ) GM # 3763763

South Side Automotive
Minneapolis, MINN.
phone:612-727-2404
They have: ( 18 ) GM # 3763763 Motor Mount Locks
ask for Jody or Heath


Spacer

Spacer Spec:
11/16 " O.D. X 2 & 1/8 " O.L.

original GM # 0.002 - GM # 3705449
superseded to:
GM # 0.002 - GM # 3769338

Dans Obsolete
Chinook, Montana
phone:406-357-2615
They have: ( 27 ) GM # 0.002 - GM # 3769338

Friesens Chevrolet
Sutton, NEB.
phone:402-773-5538
They have ( 1 ) GM # 0.002 - GM # 3769338

South Side Automotive
Minneapolis, MINN.
phone:612-727-2404
They have: ( 3 ) GM # 3769338 Spacer
ask for Jody or Heath

George
in
New Jersey