Ring Gear Diameter:
Pinion Shaft Diameter:
Ring Gear Bolts:
Left Hand Threads:
Pinion Splines:
Cover Bolts:
7 3/4"
1.376"
8
7/16" x 20
27
9
Model
Year
Camaro
85-91
Firebird T/A
85-91
Ratio
Teeth
Part
#
3.73
37-10
GM7A/373
Installation
Kits
Part
#
Master Installation
Kts
GM7A/MOKIT
Installation
Kits
GM7A/KIT
Mini Installation Kits
GM7A/MKIT
Tech
Note:
When
replacing a 3.08 and numerically lower ratio gear sets with a 3.23
or higher gear, an extra thick gear must be used or the case must
be changed to a 3.23 and higher case.. 7 1/2" and 7 5/8"
gear sets directly interchange with each other.