700R4 2wd to a NP203? Will it work

[Mudbug1979]

My tranny (th350) is pretty much fried. I have a 700R4 out of a 89 2wd Sub and I have heard that with a few Mods I could bolt this up to my 203 x-case. Has anyone heard or done this? If it does require mods about how much do they run or would it be cheaper to rebuild my Th350 which I have had a quote of in the neighborhood of 400-500.00 range. Thanks for any info. /forums/images/graemlins/ears.gif

 

[Mudbug1979]

Anyone? No one? Some One?

 

[1979jimmy350]

it can be done and is not to bad to do. all you need is this out put shaft from advanced adapters http://eshop.advanceadapters.com/commerce/catalog/product.jsp?product_id=1516&czuid=1095690851531

you have to tear down the whole tranny to do the swap but it is not that hard to tear down a 700-r4. the transfer case adapter will bolt to where the tail housing bolts to the tranny.

 

[Mudbug1979]

Some one told me that you could just cut off some of the rear output shaft and it would mate up. That seems like it would be feesible but I don't want to tear anything up on a good tranny. I've never torn a tranny down so I have no idea what I'm getting into.

 

[1979jimmy350]

the splins do not go far enough back even on the 4x4 shafts let alone the 2wd shaft. I have done this my self the only other way would be to use a huge spacer which would cause more problems because the 203 is a heavy case. I am selling a 700-r4 that has all ready been converted it is in the for sale fourm.

 

[big83chevy4x4]

the 2wd is WAY to long for this. the 700r4 4wd shaft is too long also. you will neeed the special shaft.

now on a th350, the 2wd long tailshaft, you can cut 1.75" off the shaft and use a spacer to REPLACE a 700r4.