Converting an auto to a 200 4R

Not to hijack your thread Gary but what are the pros and cons of 200 4R and 700 4R .

And yet, you DID!  

Very nice and clean! Unlike mine. I kind of remember the shim thing at the crossmember. No vibration from shimming mine. Nice to see that your driveshaft was the right length to bolt up to that nice looking non Olds dif. And another note, shiftworks has a nice conversion kit to use a cable setup with the original floor shifter.

Very nice

It wont,455's torque will kill it. Most of these 200-4R's were behind 307 150hp smog motors and such. I started with a 87 Buick GN, I think the ID on the case says 401 BK. Jack Laswell in the DFW area is nationally known in the Buick GN circle. He built my tranny. I just ordered a TCI 200-R4 lock up kit-This easy-to-install lockup wiring kit for a 2004R. This will allow you hands-free, automatic activation of the torque converter clutch in 4th ... It's supposed to be a great kit for $100.00. The other are more expensive-B@M for example.

Joe have you seen or heard of anybody using the shims I have used on my cross member?

Once I get the car running we shall see, I also fabbed two small 1/8 inch thick plates. Using them for added strength when bolting the cross member to the frame. May have been a little over kill but its what I decided to do.

After years of research I just completed the swap from a TH 350 to 200-4R. Wish I had done it sooner. Amazing difference. Given my situation I went with bowties stage 2 tranny. Bought the TV setup as well. The tranny is a direct fit, yoke and driveline as well. The cross member needs to be located back a bit but simply drill four holes. Used a lockup convertor. The TV setup is easy if you have a pressure gauge (which they sell). Also important is to install a temp gauge as high temps kill tranny's. They set up the tranny for a direct bolt in with the right springs and setup for the TV cable if you buy everything from them. I went with a moderate but higher stall converter and so far am very impressed. I'm running a 425, bored .30 over, balanced with moderate enhancements with 3.73 rear. The lower 1st gear in the 200 combined with the tourqe olds has and those gears is as much as I need. The OD is awesome on the highway. Only had it out a handful of times but so far, impressed. Will post some pix later but wouldn't hesitate. 700 requires also t of mods, a good 200 will handle all you want.

I used all Lokar components for my tranny and Q-jet. I can take a picture of the set up if like.