All you Transmission guys...READ this>.....

Trans and torque converter were the only thing changed

 

I would order another converter from a different vendor first. It's the cheapest thing you can order a stock reman should run ya 80-150 and just return it if it isn't the issue. That would then conclude it is either fixed or you need another transmisson.......

 

Hey 55Crownvic:
Check the offset of the flexplate against a "known" AOD Flexplate such as one from an Auto Parts store. Oftentimes people will sell a C6 flexplate which has the correct bolt pattern but has more "offset" from the crankshaft thus pushing the converter back into the transmission too far. This is often true when someone is selling a 28 oz. AOD flexplate as "all" AOD's were used on motors that used a "50" oz imbalance . I know the flexplate works with your first transmission but this would be worthwhile checking out. Hope this helps. Dr.Bill (CAMEO)

 

Dr Bill, this sounds like the best answer so far. That is one thing I havent tried.

If this is the fix, then what do I do about the 28 oz imbalance?

 

but you just said the only things changed were the converter and trans....if this flywheel worked an an AOD previously........????? now you are losing me....D

 

Sorry bout that.......but DR Bills post reminded me of something....and that is , the first AOD i used, did not have any gears so I had another tranny guy tear it down and he discovered that the bearing/bushing at the rear of the case had been destroyed and that was allowing all the components to shift to the rear. To me that would explain why the first AOD was free to spin and why this new tranny binds. Had I not forgot this info that might have made a diagnosis easier.

Question still remains, if this is the solution, do I need a 50 oz imbalance harmonic balancer?

 

yesyou need to match flywheel and harmonic balancer 50 oz w 50 oz and 28 w 28 oz.....

and yes I believe you are on the right track!!!! sounds like the flywheel depth after gettiun the info strait

 

I apologize for that....sometimes(well, more often than that) I can be an idiot

 

What year is your motor? Is it a 302 or 351?

Bill

 

good question lol...

that will make some difference

 

the crank determines the balance needed. if your 28 oz you need to stay 28 oz.

 

and 164 teeth

 

The motor is a 73 302,
and I went and checked the flexplate at lunchtime and the stock AOD plate is 1/4 inch further forward than the replacement ebay one. So I think this will be the fix, just need to get the balance right. Good catch DR. Bill!!!!!!

If there is not a sutable AOD 28oz flexplate, can I use the one from the 81 ford AOD?.Will changing the harmonic balancer to a 50 oz work?

 

no no no! the crankshaft is balanced to 28oz not 50 oz.
Putting a 50 oz balancer will just cause more problems.



http://www.mustangsandmore.com/ubb/DanJonesC4AODswap.html

 

You need part number FRA205 from autozone or 6005012 from napa. They are from an 84 Crown Vic with a 351 and an AOD. All 351's are 28 oz motors as are 81 and older 302. So your 73 is a 28 oz motor so you MUST use a 28 oz flexplate and harmonic balancer.

Bill