Companion flange interchange

[MV8]

I have a 1977 Spitfire without a driveshaft (or engine, or transmission, etc). I've been looking at mg and triumph flanges on ebay. What applications use the correct companion flange for my application? I can see it has ujoint axles and I expect it to have a 3.89:1 ratio.

I searched without success.

[NCtim]

Hey Steve,

Maybe a little more info? What rear end, transmission?

NCtim

[MV8]

Rearend is original to the 1977 Spitfire. I assumed the differential end of overdrive and nonoverdrive transmissions is the same. I don't know what transmission it came with. Is that on the vin plate? The dash is also gone, so no overdrive switch.

I just need the companion flange and rear weld joke inorder to make a hybrid driveshaft to connect  my chevy s10 T5.

I may need to press and weld a ring to the spit weld yoke to step the tubing diameter up to about 2-1/2", or the smallest tubing weld yoke that will accept the s10 T5 slip yoke's u joint or maybe use a hybrid joint with two different size bearing caps and spider widths.

I found one for $30 on Ebay, so I guess that is about as cheap as they get.

Thanks