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Board index » All Posts (johntrhodes81)




Re: Packard Engine to GM Auto Transmission Adapters
#1
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johntrhodes81
Thanks and nice story. I used a Harbor freight tools version of that.

Posted on: 7/1 15:11
John Rhodes

1953 Packard Patrician
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Re: Packard Engine to GM Auto Transmission Adapters
#2
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johntrhodes81
The 4L60e is in and bolted to the engine. Next step is a rear transmission mount. Seems the stock rear cross member will need only slight modification. The Ultramatic is very difficult to get in and out in one piece. To do that it requires significant tilting to get it in which is difficult to do without a lift and a high rise trans jack.

The 4L60e is shorter and can just be slipped in with some tilting using a low rise trans jack and a car even on jack stands. To remove an Ultramatic in this scenario the tail housing must be removed.

So now it is time for trans mount, linkage, driveshaft, wiring etc.

John

Posted on: 7/1 7:02
John Rhodes

1953 Packard Patrician
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Re: Packard Engine to GM Auto Transmission Adapters
#3
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johntrhodes81
A 3.06 to 1 1st gear should help along with overdrive.

Posted on: 6/16 19:47
John Rhodes

1953 Packard Patrician
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Re: Packard Engine to GM Auto Transmission Adapters
#4
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johntrhodes81
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: 6/16 6:06
John Rhodes

1953 Packard Patrician
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Re: Packard Engine to GM Auto Transmission Adapters
#5
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johntrhodes81
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: 6/15 22:09
John Rhodes

1953 Packard Patrician
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Re: Packard Engine to GM Auto Transmission Adapters
#6
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johntrhodes81
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:



jpg  16238084783062872620995270014022.jpg (196.64 KB)
3978_60c959f5eaebb.jpg 1920X1440 px

Posted on: 6/15 20:55
John Rhodes

1953 Packard Patrician
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Re: 1939 six convertible coupe— photo assist
#7
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johntrhodes81
You might have better luck posting this on the prewar section.

Posted on: 6/10 20:56
John Rhodes

1953 Packard Patrician
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Re: Packard Engine to GM Auto Transmission Adapters
#8
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johntrhodes81
Sorry no pictures but the starter is in and the transmission is ready to be installed. Next update will be bolting in the trans and seeing if the existing cross member will work.

Posted on: 6/9 21:44
John Rhodes

1953 Packard Patrician
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Re: Packard Engine to GM Auto Transmission Adapters
#9
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johntrhodes81
With 1 1/8 bolts the flywheel is in. The starter is tough to get in but doable a long 3/16" allen wrench helps. On bolts for flywheel blue loctite and 25 ft pounds.

Attach file:



jpg  20210602_205357.jpg (314.35 KB)
3978_60b835688ba04.jpg 1920X1440 px

Posted on: 6/2 20:50
John Rhodes

1953 Packard Patrician
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Re: Packard Engine to GM Auto Transmission Adapters
#10
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johntrhodes81
The flywheel bolts have less than 3/16ths engagement maybe 3 threads on the crankshaft hub. Hub is 3/8ths. Getting longer bolts. Original bolts engaged full 3/8ths.

Supplied bolts are 31/32. I will go 1-1/8.

Posted on: 5/25 20:11
John Rhodes

1953 Packard Patrician
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