The isolator hasn't changed since the 50's or so which leaves the only question being the fore-aft position of the mount.
Here's T56:
Note some other sources claim 26.6"
I was under the impression that the 4L60E was a direct replacement length wise, but the below suggests it may not be:
Here's a few of the older automatics
Note, the above are not my data so buyer beware, on net I would expect our transmission mount to work fine for the th200 and th400, but not necessarily the others. We mount to the tunnel which tapers so you should be able to make this work for about a 1/2" fore aft offset either way. Much more than that and I'd want to make a custom piece for you. The simplest thing we could do would be to give you the middle bar (prebent with isolator flange) but with the ends as bare tube. You would then cut to length and weld in your own end plates as needed.
Can anyone running 4L60E take a length measurement for me? Belhousing to block flange -> centerline of mount. Please note the application it came from as well...-Joel
