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Another overdrive trans conversion question

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Old Dec 23, 2007 | 02:32 PM
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HO-alts-Rick's Avatar
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From: Davenport Ia
Default Another overdrive trans conversion question

What is involved in converting to each of the overdrive transmissions? What costs are involved in doing each?

I have an 81 that the computer is gone from already. I beleive my trans is a Turbo 350.
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Old Dec 23, 2007 | 02:36 PM
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From: Kerrville Texas
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I had my 80 switched to a 200r4 two years ago. A local shop did it for just under $1,600 I supplied the 200r4 core.

Kona
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Old Dec 23, 2007 | 03:53 PM
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HO-alts-Rick
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From: Davenport Ia
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I have a friend that has a 200r4 and a 700r4. He said I could have either for a favor he owes me. They both are good working units. I really want an overdrive for mileage as I spend a lot of time on the highway but don't want to go to anymore trouble and/or expense then necessary. I really don't know anything about this swap other then a shifter kit is available from Eckler's.

I guess my big questions are

1. What drive shaft do I use or will I need to get/make a special one?

2. What crossmember do I use or will I need to get/make a special one?

3. Will the speedo cable hook up the same?

4. Will I have issues with the dipstick?

5. Will my turbo 350 flexplate work with the new trans?

6. What exactly do I do about the fact that I don't have a computer on this car?

Anything else I should know?

I have been watching another thread but they are starting with a turbo 400 and I am sure the swap is a lot different. I have searched the forum also and while I have found a few threads about how the swap was done I have not found 200r4 and 700r4 swaps compared.
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