Hello, hope i'm in the right forum part..

I own a 1964 oldsmobile 88 dynamic and have a 394 cui with slim jim in it.
i would like to have a picture reference on how the transmission is mounted with mounts in front towards engine and in back against driveshaft
as mine do not seem to be mounted really really as it should....

as you can see on my pics it really isnt mounted correctly
and no i did not mount this myself......

 

yours is cracked;but only mounts to back of engine to frame;trans hangs in mid-air...

 

Big thanx for the answer i was wondering if i was missing the rear transmission crossmember but atleast i don't....

Yes the cracks are really annoying..

I bought the car with a "totally restored" transmission... but the seller lied and the company that have had the transmssion in for some minor adjustments didnt even put it back propperly. they claimed it was like that but.. they have removed it from the car to do work and even replaced it with another transmission and put it back just like that....

 

Its hard to tell from your photos but it looks like you may have the wrong mounts and trying to fit them has cracked the mounting bosses on the transmission. These pics show the correct mounts when I replaced them on my 63. I was able to buy replacements from Fusick, not sure if they still sell them. Once you have the right mounts you will need to see if there is enough threading left to actually bolt them up.

 

Your chassis service manual has the diagrams you are looking for.