323 gears

[westcoastdodge]

just a quick question guys,have a spare set of 323 gears from an 8 3/4 rear,does it matter what case they come from or do they all fit???

[68RED4SPEED]

They will only fit in one case.

[westcoastdodge]

ahh rite,is there any way of telling through the numbers stamped on the crown wheel or pinion???

[68RED4SPEED]

1-3/8" small stem pinion... (aka. '741')...
Carrier casting numbers: 1820657 (1957-1964), 2070741 (1963-1972). This assembly was typically used in low weight/low horsepower applications through low weight/medium horsepower and high weight/low horsepower applications. Pinion depth and bearing preload is set with shims. Differential bearing setting (ie. backlash ) is set with threaded adjusters.

1-3/4" large stem pinion... (aka. '742')...
Carrier casting numbers: 1634985 (1957-1964), 2070742 (~1961-1969). This assembly was replaced by a phase-in of the 1-7/8" pinion starting in the 1969 model year. 1970 RW (Plymouth and Dodge mid-size) were the last models to use the 1-3/4" which appeared in a 2881489 case. This assembly was typically used in high weight/medium horsepower applications through high weight/high horsepower applications. Pinion depth and bearing preload is set with shims. Differential bearing setting (ie. backlash ) is set with threaded adjusters.

1-7/8" tapered stem pinion... (aka. '489')...
Carrier casting numbers: 2881488, 2881489 (1969-1974). This assembly was introduced in 1969 and was phased-in as a replacement for both the 1-3/4" "742" unit and the 1-3/8" "741" unit. Note: the 1-3/4" pinion also appeared in some '489' carriers during this period. By 1973, the '489' was the only unit available in passenger car applications. This assembly was typically used in high weight/medium horsepower applications through high weight/high horsepower applications. Pinion depth is set with shims, preload is set with a crush sleeve. Differential bearing setting (ie. backlash ) is set with threaded adjusters.

[westcoastdodge]

68RED4SPEED,you da man,thanks alot 

[68RED4SPEED]

Haha thanks, Im not that good it was just a copy and paste.

[Nacho-RT74]

I have one NOS set for 741

but... I don't think you'll pay international shipping LOL

[John_Kunkel]

ahh rite,is there any way of telling through the numbers stamped on the crown wheel or pinion???

In any given ratio, the ring gear (or crown wheel) is the same for all carriers, only the pinion is different.