1028 tcase front flange?

I have an 86 1028 cucv with 6" lift, 37"km2's. Has burnt up 700r4 and cracked 208 case. Just so happens I have a th400 and atlas 4speed sitting around with 1410 yokes. I want to put this in my truck simple as possible. I'm thinking I need to order a rear 1350 yoke to match the 14bolt and build a dshaft. Now the front I have a quick question, what flange do I need to order to match the front dshaft?

Thanks

http://www.4xshaft.com/
lot of good info here, they will have what you need. check under tech section and chevy gmc.