Below are a few pictures of my transmission. Comparing pictures of Saginaws along with Muncies, I know that my transmission is a Saginaw 4-speed (ignorance on my part for believing the seller...who told me it was a muncie).

Anyways, if you guys could take a look and help me decipher which gear ratio I have, that would be great. I have tried looking at other Saginaw's to see what it might be but I cannot tell visually. I know I can look internally or at the insert shaft, but it is installed in my car.

Thanks for any help.

http://thumb3.webshots.net/t/52/652/6/50/67/2846650670100133023zwAdcm_th.jpg (http://good-times.webshots.com/photo/2846650670100133023zwAdcm)
http://thumb3.webshots.net/t/64/564/2/80/6/2882280060100133023HYLBXP_th.jpg (http://good-times.webshots.com/photo/2882280060100133023HYLBXP)
http://thumb3.webshots.net/t/52/652/9/59/29/2628959290100133023AaTcXP_th.jpg (http://good-times.webshots.com/photo/2628959290100133023AaTcXP)
http://thumb3.webshots.net/t/63/663/6/63/80/2359663800100133023lcgZYH_th.jpg (http://good-times.webshots.com/photo/2359663800100133023lcgZYH)

Isn't it a Sag b/c all three levers are in the side cover??

What 1st gear ratio Sag, don't know w/o pulling it and counting the grooves on the input shaft?

pdq67

Yes that is the first visual clue from what I have read and looked at.

I figured that might be the only ture way to tell what ratio it is. I might do that at a later time to make certain.

Your picture illustrates you have a truck bellhousing, is this vehicle a truck? If you have a passenger car 4 speed, the register bore on the bellhousing is not correct for alignment.

Saginaw's also have ID grooves machined into the maindrive gear splines to designate the 1st gear ratio.

I switched my '80 C/10's Sag 3-speed's front bearing retainer over to my car Sag 4-speed and the car tranny fit the big-holed P/U b/h fine!

I've posted all the groove gear ratio info on all of them if you want to hunt it up.

pdq67