1984 3 speed transmission

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Selo

Member
Joined
Jan 3, 2019
Posts
48
Reaction score
14
Location
Greensboro nc
First Name
John
Truck Year
1984
Truck Model
C10
Engine Size
250
Bucket,

Thank you! The transmission was changed (long story) around 1994. I was told at the time it was an earlier year trans. The truck is an 84 so, of the two choices,
that would point to a 1975. You have good eyes. I don't doubt your appraisal, but I can't decipher those numbers stamped on the trans.
Thank you again,

Selo
 

Selo

Member
Joined
Jan 3, 2019
Posts
48
Reaction score
14
Location
Greensboro nc
First Name
John
Truck Year
1984
Truck Model
C10
Engine Size
250
Bucket,
I don't remember where that code (J 27 5) was cast, but somewhere on main case. Was not on the tail shaft housing.
Selo
 

DoubleDingo

Full Access Member
Joined
Jul 3, 2012
Posts
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Location
Right where I am
First Name
Bagoomba
Truck Year
1981
Truck Model
81-C20 Silverado Camper Special-TH400-4.10s
Engine Size
Carb'ed Vortec 350
The gear oil should be 90w mineral oil. What is the synchromesh you speak of?
 

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