78 351W AOD install problems
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78 351W AOD install problems
hey guys need some help i have a 1978 351W and i am trying to install an AOD trans. the problem i am have is the torque converter and the flexplate are pushing agianst each other. i have already trash one trans.
I am useing the stock (orlielly's ) flexplate 164 tooth 28oz. "stock" junk yard trans.
I am useing the stock (orlielly's ) flexplate 164 tooth 28oz. "stock" junk yard trans.
Laughing Gas
Joined: Dec 2003
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From: Ford, WA
I don't think the AOD ever came behind the 351w.. You might have to special order a flex plate for it.. I know the c6 flex plates do not work.. I went that route and my trans died in a few hundred miles
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Did the Trans pump go out ?
I am woundering if a guy could not add two or more Block to trans plate just to make a little more room they are about 1/16".
You might end up shiming the starter back. i hear about guys doing it all the time overdrive would be nice.
I am woundering if a guy could not add two or more Block to trans plate just to make a little more room they are about 1/16".
You might end up shiming the starter back. i hear about guys doing it all the time overdrive would be nice.
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Sounds like the converter isn't all the way in.
Bolting an AOD to a 351 should be nearly the exact same process as an older model 302 with 28oz imbalance. All of the parts are the same, bellhousing, flywheel, all cross.
Bolting an AOD to a 351 should be nearly the exact same process as an older model 302 with 28oz imbalance. All of the parts are the same, bellhousing, flywheel, all cross.
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Joined: Jul 2007
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From: Birmingham AL
When seating the Tq Converter are you getting 2 "clunks"? You will get one when it first goes in, then rotate it clockwise a few degrees while pushing will get you the second "clunk"
::EDIT::
sorry for the non-technical term clunk. It's the only way I can think of to verbalize it. It literally clunks each time it seats (for a total of 2)
::EDIT::
sorry for the non-technical term clunk. It's the only way I can think of to verbalize it. It literally clunks each time it seats (for a total of 2)
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I trashed one trans already. The torque convertor is rubbing the back of the transmission bell houseing. And still doesn't have enough room. If i measure from the block plate to the front of the flexplate it's 1". With the torque converter jamed in the back of the trans i measured 7/8" from the back of the torque convertor bolts to the face of the tans.
The starter ingages fine with no noises
The starter ingages fine with no noises
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The converter shouldn't be rubbing, obviously. Not sure where the problem is. Something is definitely wrong. From what you're describing it sounds like the converter is too far forward and too far backward at the same time, sounds like it is too big, which sounds like it isn't the converter that came with it.
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ya i dont know. i wonder what spaceing the C6's and C4's have. or if some one through a C6 converter in the trans. Do you know if the C6 converter is bigger. i hate to go buy anther AOD trans and have the same problem. but one the same token it would be nice to have that 4 gear
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Are you using the flexplate for the 351 with a C6?
Quick google search says the C6 has a different flexplate than the rest. I learned something today.
A 164 tooth flexplate from an older 302 (pre 1980-81) will work with the AOD.
I hadn't run into that myself. I knew the 351W flexplate was a potential source for my 302 w/AOD, but I didn't realize that the C4 and C6 used different ones.
Quick google search says the C6 has a different flexplate than the rest. I learned something today.
A 164 tooth flexplate from an older 302 (pre 1980-81) will work with the AOD.
I hadn't run into that myself. I knew the 351W flexplate was a potential source for my 302 w/AOD, but I didn't realize that the C4 and C6 used different ones.
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The 302 is a 24oz weight and the 351 is a 28oz counter balance weights. Wouldn't that 4oz through the motor out of balance?
are you running a 302 or 351 in your truck?
I allways thought that the 302 and 351 blocks were the same on the out side
are you running a 302 or 351 in your truck?
I allways thought that the 302 and 351 blocks were the same on the out side