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#1346835 02/17/2020 1:57 PM
Joined: Nov 2010
Posts: 114
G
'Bolter
'Bolter
G Offline
Joined: Nov 2010
Posts: 114
Trying to find the part numbers for the thrust washers used in the side gears, and pinion gears, of the GM 55T truck differential. If anyone knows these part numbers, or has any of these thrust washers in NOS condition, I sure would appreciate the contact. Thanks in advance.


Last edited by Ghost_Rider; 02/17/2020 2:06 PM.

Ghost Rider
Little Egg Harbor, NJ
1942 Chevy 3/4 ton pickup, 1962 235, Offy intake, Fenton headers, Dual Carter YFs, 1984 T5
1956 Chevy 3100 Apache, 67 350SBC, Saginaw 4 speed, 69 12 bolt
Joined: Aug 2019
Posts: 242
O
'Bolter
'Bolter
O Offline
Joined: Aug 2019
Posts: 242
I don't know of any "thrust washers" in the 55t other than the axle locking clips:
axle locks

Here's a diagram of the 55t:
http://chevy.oldcarmanualproject.com/shop/1955truck2/55ctsm0409.htm

All of the bearings & shims are available from a few vendors
https://www.justdifferentials.com/GM8-2-Master-Install-Kit-p/mkgm55chevy.htm

Last edited by Ott3r; 02/17/2020 3:19 PM.

'59 Chevy Suburban, NAPCO
Joined: Nov 2010
Posts: 114
G
'Bolter
'Bolter
G Offline
Joined: Nov 2010
Posts: 114
OK. Thanks. I thought there were thrust washers in the GM 55T. Your diagram proves I was wrong. Thanks again for your quick reply.


Ghost Rider
Little Egg Harbor, NJ
1942 Chevy 3/4 ton pickup, 1962 235, Offy intake, Fenton headers, Dual Carter YFs, 1984 T5
1956 Chevy 3100 Apache, 67 350SBC, Saginaw 4 speed, 69 12 bolt
Joined: Aug 2019
Posts: 242
O
'Bolter
'Bolter
O Offline
Joined: Aug 2019
Posts: 242
grin
I get excited when i hear 55t... i've got two of them in my NAPCO!


'59 Chevy Suburban, NAPCO

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