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238 Posts
I've been trying to find information on putting a 4R70W transmission in a 1971 Mach 1 with a 4 barrel Cleveland. Everything I'm looking at seems to suggest that it's probably going to cost at least $3000 to get everything put together correctly. What I want to know is what was your experience swapping in a 4R70W into a classic Mustang. What did the swap end up costing you? I really don't want to put a 3 speed C4 back in the car. I currently have a rebuilt C4 that already has a shift kit, and is ready to simply be put back in place.
Is there anything particularly annoying that I should look out for when attempting to do a swap like this. I'm also going to admit that I don't really know what my options are for finding a used 4R70W is. I assume V6 Mustangs, and Ford Explorers have the same bolt pattern as a 351 Cleveland. Is a stock 4R70W going to be safe behind a modified 351 Cleveland making 475 flywheel horsepower???
The biggest thing that is scaring me away from a 4R70W swap is that I don't really have the skills or knowledge to put all the electronics in place so that they function correctly. I really am not sure exactly what all the electronic parts I need are.
Any help on this would be fantastic!
Is there anything particularly annoying that I should look out for when attempting to do a swap like this. I'm also going to admit that I don't really know what my options are for finding a used 4R70W is. I assume V6 Mustangs, and Ford Explorers have the same bolt pattern as a 351 Cleveland. Is a stock 4R70W going to be safe behind a modified 351 Cleveland making 475 flywheel horsepower???
The biggest thing that is scaring me away from a 4R70W swap is that I don't really have the skills or knowledge to put all the electronics in place so that they function correctly. I really am not sure exactly what all the electronic parts I need are.
Any help on this would be fantastic!