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Re: Packard Engine to GM Auto Transmission Adapters
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Home away from home
 
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I believe the cross member will need modified to work. I remember someone else posting a picture of theirs modified.
Posted on: 2021/6/10 8:03
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Re: Packard Engine to GM Auto Transmission Adapters
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Home away from home
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It will fit well. It's shorter so no angling trans to fit in x brace. Seems stock cross member won't need much modification. Yes the trans is old. Came from a parted out 97 gm truck that rotted out.
Attach file:  16238084783062872620995270014022.jpg (196.64 KB)
Posted on: 2021/6/15 20:55
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John Rhodes
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Re: Packard Engine to GM Auto Transmission Adapters
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Home away from home
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John a while back (post # 10) you reported the flywheel bolts were torqued to 25 ftlbs with blue Loctite. The torque sounds low to me, was that a typo, or is that the torque specified for that flex-plate?
dp
Posted on: 2021/6/15 22:04
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Re: Packard Engine to GM Auto Transmission Adapters
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Home away from home
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Thanks for the look. Flexplate had no spec. Searched this forum and found a post that said 25 ft lbs. Do you have other information?
Thanks
Posted on: 2021/6/15 22:09
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John Rhodes
1953 Packard Patrician |
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Re: Packard Engine to GM Auto Transmission Adapters
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If it was a standard shift flywheel the bolts are torqued to 55 - 60 ftlbs . . . that would be for a 7/16 X 20 thread diameter and pitch.
I looked in the Ultramatic section of the shop manual and came up empty. Assuming the crank shaft is the same Ultramatic v Standard we can assume the crank is good to 60 ftlbs. Now the question is what grade bolts did you buy? Another question would be how much of a lubricant is Loctite ? dp
Posted on: 2021/6/15 23:28
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Re: Packard Engine to GM Auto Transmission Adapters
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Home away from home
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Let’s shoot a flare towards Speedwell USA, and have Ross weigh-in on the bolt torque.
dp
Posted on: 2021/6/15 23:50
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Re: Packard Engine to GM Auto Transmission Adapters
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Home away from home
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If there is normal thread engagement a 7/16 fine thread bolt would be torqued to 55-60 lb-ft. 25 lb ft would be for a 5/16 bolt.
Posted on: 2021/6/16 5:54
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Re: Packard Engine to GM Auto Transmission Adapters
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Thanks. They are 7/16 fine thread bolts. The engagement area on the crank shaft is 3/16 thick. If that changes anything.
Thanks.
Posted on: 2021/6/16 6:06
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John Rhodes
1953 Packard Patrician |
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Re: Packard Engine to GM Auto Transmission Adapters
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Home away from home
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I met a gentleman recently that installed a 700R4 behind his 327 in a 51. He didn't recall who made the trans adaptor but he said it totally transformed the vehicle.
I'll be keeping an eye on this thread. -Chris
Posted on: 2021/6/16 12:48
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