T-5 repair question

I have a wc t-5 out of an 88 mustang. The input shaft gear and the gear below it are stripped, meaning there isn't a damn tooth on them. I also have a 4 cyl t-5 out of an 87. The V8 tranny is actually in better condition, it just has the two stripped gears. Anyway my question is will the input shaft and other gear out of the 4 cyl. tranny work in the other one. Thanks in advance.
 
The 4 cylinder input shaft and cluster gear arer different from the V8 ones. The gear ratios are differernt.

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See http://www.ttcautomotive.com/English/onlineorder/product.asp to download a FREE service manual for T5 or Tremec 3550/TKO
You will need the Adobe Acrobat viewer which is also a free download – http://www.adobe.com/products/acrobat/readstep2.html

See http://www.hanlonmotorsports.com/ or http://www.ddperformance.com for parts

A T5 rebuild kit with syncros, bearings and other small parts costs about $160. It does not include any gears or shafts.

http://www.hanlonmotorsports.com/ also has a video on how to rebuild your T5 or Tremec. It costs about $20, and is worth every penny of it.