Transmission Swap 1967

Q: Transmission Swap 1967

I was wondering if anyone could tell me what is involved in swapping a powerglide tranny out of my 1967 Firebird for a 400 Turbo or 350 Turbo — which would be easier? (Would I have to change cross-member, yolk, or drive shaft on either of these applications?) I would appreciate any input you would have for me on which would be the best to do.

A: 350 would be a straight swap. 400 will need a new crossmember and front driveshaft yoke and a shorter driveshaft. Depending on which year, the kickdown on the 400 will also be different. good luck.

A: I just did this swap in my 1967 convertible. The above was correct in everything it said, I also found that my two speed shifter had too much throw, so you’ll have to put in a 3 speed unit or buy a conversion kit with the proper detents and new linkage rod. At the same time you may as well replace the plastic indicator. This swap is well worth the effort, I really enjoy the extra performance of the 3rd gear. Good Luck! P.S. I got my cross member and drive shaft from Steve Hansen, who has been mentioned before in this forum.

A: I spoke with my local transmission shop who said that the Turbo Glide and the Turbo 400 are exactly the same. No modifications needed. The Turbo 400 requires a kick down cable from the carb., where the Turbo Glide uses an electric switch. That’s the only difference. Let me know how it goes.

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