decode saginaw 4-speed

buddy z28 · May 31, 2006

Main case#3925656
Extension#3925658 Side cover#6261886 also has a date 11-13-78 or 11-13-70 hard to make out
Main drive gear has three rings
# stamped on machine surface R9A26
on bottom of main case has HS stamped in white letters
Orange paint on top of front bearing retainer
Lime green paint on bottom of front bearing retainer
Orange paint on extension in middle of it
Blue paint by speedo drive
I bought a RSSS 1969 camaro and this transmission can with it. But the firewall has ahole for the speedo cable to go through like a 4 speed muncie with the clips.This car was built 11c.Is it possible that this car can with a saginaw 4-speed ? It also can with a 350 300 h.p. Please help thanks

pdq67 · Jun 1, 2006

http://www.camaros.net/forums/showthread.php?t=50814

"Here's how you ID a Saginaw 4-speed trans.

4 speed Saginaws
no lines= 2.84-2.01-1.34-1.00
1 line= 2.54-1.80-1.44-1.00 common
1 Line= 2.54-1.80-1.32-1.00 rare
2 Lines= 3.11-2.20-1.47-1.00
3 Lines= 3.50-2.46-1.65-1.00

And, imho, the rare, 2.54 tranny would live the longest behind a good motor! And next, the common 2.54 tranny... Next, the 2.84 followed by the 3.11 and last the 3.50...

And I figure you will shell a 3.50 tranny in a heartbeat if you HOOK!"

I switched out my '80 6-banger C/10, P/U's 350 low gear 3-speed column shift for the 350 low 4-speed floor shift.

pdq67

captbrian03 · Oct 10, 2015

my Saginaw #'s case GM 392565, tail shaft 352254, on the ground flat 2A7594769 additional #'s 073 AFC 6 and GM6
three groves on the input shaft, I'm going to put this behind a rebuilt 327 SB at about 220 horsepower in a '63 Impala Sport Coupe over the winter
thanks for any and all info, Brian

decode saginaw 4-speed

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