Hi all , i just got a 68 saginaw 4 speed date code H/10/7 , in the serial number it has a X stamped above it , What does the X mean anyone know , Thanks Jim
check on the internet..i have a saginaw 4spd in my delivery.....if your input shaft has 1 ring,like mine,it has a lo first gear..dont know bout the x.mine might have it also...chuck
Those raised numbers were cast into the housing by the foundry. They provide info about the cast component, not where it was ultimately installed by production. Some ID charts DO also include casting numbers, when a relatively few casting numbers are known to have been used for a particular application. The more detailed manufacturing numbers are usually stamped into a flat machined surface using hardened steel stamps like these. http://www.pannier.com/indenting/stamps-type-dies/steel-hand-stamps/steel-hand-stamps-03.jpg The flat surface ( pad or boss) is machined on the part specifically for that purpose (to receive the stamped manufacturing numbers.) This is link shows what stamped numbers look like and are on a pad machined flat on an engine. http://www.camaros.org/images/pages/decoding/enginepad_V1012FL.jpg One site claims Saginaw 4 speeds mfg numbers are stamped into a machined pad here - http://www.camaros.org/images/pages/decoding/trans_saginaw_code.jpg To make "number jobs" more difficult for thieves, some manufacturers first stamp the machined boss with a distinctive pattern before stamping the manufacturing numbers. http://www.triumphrat.net/attachmen...6001d1276112095-serial-number-alignment-0.jpg Also for similar purposes sometimes distinctive customized fonts are used for the mfg numbers. Harley was famous for using straight backed sixes and nines, and after 1943 an open 4, as used on this bike. The 1 looks as if it may have been "re-stamped." http://i436.photobucket.com/albums/qq90/Sarge_74/Harley VINs/46UL3196.jpg
Thanks Dan great information, i was thinking off maybe buying up a few older ones they are still pretty cheap where i am , i got this one with a hurst competion shifter mounted on it, The numbers you where mentioning are these the ones , 19W395820 R8P08 Thanks Jim
I believe the foundry used x when ever they made a change in design you see it on heads and blocks also
I know that M-20, et al, are just option numbers and that many low horsepower V8s came with Saginaw boxes, but I've never seen an M-20,M-21 or M-22 transmission option that was NOT a Muncie box.
The thing that matters is the number of grooves around the input shaft. They translate into the ratio of the gears inside. I've got no idea of the #'s, probably online somewhere. TP
This one has no grooves in it , i did the old way marked the tail shaft and imput shaft put it in first and turned got around 2.7 give or take a bit. Jim
ripped info from here somewhere... Here's a run down of gear ratios. You can identify which one you have by the number of grooves on the input shaft: SAGINAW 4-SPEEDS (CAST IRON) 0 LINE INPUT -2.84/2.01/1.35/1.00 1 LINE INPUT - 2.54/1.80/1.44/1.00 2 LINE INPUT - 3.11/2.20/1.47/1.00 3 LINE INPUT - 3.50/2.47/1.65/1.00
Thanks Travis... I'm going to pull the saginaw out of my truck this winter for some clutch work....be nice to know what the ratios are.
dieseldust, I hope you don't mind me asking this in your thread, but I've also got a Saginaw and was hoping someone here could verify something for me (since we've got some knowledgeable folks here). This would be considered a 2 groove shaft, right? I ***ume that third area would not be considered a groove or would it?
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