TH350/700R4/4L60E Tail Extension Housing Bolt Patterns

[lt1_performance]

I recently purchased a '95 Trans Am Lt1 and a TH350 Trans to put in my '89 Firebird. I need a VSS to make it work with factory EFI. So, are the bolt patterns for the 4L60e and the TH350 the same? I'm pretty sure the 700R4 and the TH350 are the same. Are the VSS senders for the 4L60e and the 700R4 the same size and will they swap out with each other? Thanks LT1_Performance