Will a 96-03 t5 tranny work in a 87-93 5.0???

[Vinnyb89]

Im running an o1 t5 with a sbf works awesome !

 

[nickyb]

I just call em like I see em.

 

[mustang50notch]

I have a 87 notch with a 99 t5 tremec in. Only issue I have is the speedometer don't work cause it elctronic and on the older t5 they were mechanical. My question is what is changed to make this Transmission work. Can I swap out t5 with an older one or will I have to change bellowing etc.