Transmission Swap Q's

86GT · 09-22-2003, 10:14 AM

I'm going from my T-5 to a C-4 that's gonna be rebuilt with some strong parts, good convertor,etc. The question I have is, what flexplate can I use with it? I've got a C-4 flexplate from a 351 so that won't work, but what about an AOD flexplate?

billheis · 09-24-2003, 02:39 AM

Idon't think the AOD flywheel works. I do believe B&M make a 50 oz C4 flywheel and JW TRans make a SFI one

mustangII460 · 09-24-2003, 03:37 PM

If your motor is later than 1980 it needs a 50oz flex plate. What transmission you have don't matter, AOD, C-4, C-5 etc. Also a 351 flex will work so long as it is 50oz and the right amount of teeth.

If your C-4 is a older variety it may need the smaller of the two flex plates Ford has. 157 tooth VS 164. BUT STILL NEEDS TO BE 50oz. To match your motor. CHECK YOUR STARTER HITS.

Same is true in reverse. Bolting up a AOD to a say, 1968 302. You need a 28.2oz flex plate. Regardless of what tranny it is.

Hope this helps.

09-22-2003, 10:14 AM	#1 (permalink)
86GT Sniffed too much n20 Join Date: Oct 1998 Location: Ont, Canada Posts: 1,018	Transmission Swap Q's I'm going from my T-5 to a C-4 that's gonna be rebuilt with some strong parts, good convertor,etc. The question I have is, what flexplate can I use with it? I've got a C-4 flexplate from a 351 so that won't work, but what about an AOD flexplate? __________________ 2002 Windsor Weekend Q16 Qualifier

09-24-2003, 02:39 AM	#2 (permalink)
billheis Registered Member Join Date: May 2001 Location: Fernandina Beach, FL 32034 Posts: 178	Idon't think the AOD flywheel works. I do believe B&M make a 50 oz C4 flywheel and JW TRans make a SFI one __________________ Bill Heiser 90 Convertable 5.0 LX, ported E7s w/ THumper valve job, TFS street, FR 65mm TB, B cam w/1.7 cobra rockers, kirban AFPR, Mac CAI, Mac Headers, off road h, 3 chamber flows, Crane ign. box, 3:73s, Art Carr AOD & 2600 converter

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09-24-2003, 03:37 PM	#3 (permalink)
mustangII460 Factoy Five Roadster Join Date: May 2000 Location: Sevier Co,Tennessee Posts: 1,680	If your motor is later than 1980 it needs a 50oz flex plate. What transmission you have don't matter, AOD, C-4, C-5 etc. Also a 351 flex will work so long as it is 50oz and the right amount of teeth. If your C-4 is a older variety it may need the smaller of the two flex plates Ford has. 157 tooth VS 164. BUT STILL NEEDS TO BE 50oz. To match your motor. CHECK YOUR STARTER HITS. Same is true in reverse. Bolting up a AOD to a say, 1968 302. You need a 28.2oz flex plate. Regardless of what tranny it is. Hope this helps.

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