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M1078 A0 Seperation of Engine and Transmission

Lugnuts

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Fellows, I've done this job before but..... I seem to have forgotten how to separate Transmission from the Engine after all is unbolted. I have a separation between the transmission and bell housing the size of a screwdriver blade (but no I never abuse my screwdrivers) but it won't seperate. So obviously there is something inside the bell housing but it plumb escapes my thinking. Anyone please and thank you.
 

Ronmar

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look at page 7-28.4 in the 34-2 service manual(M1078_TM 9-2320-365-34-2). Either 12 or 6 flexplate bolts, accessed thru bottom cover or screw in plug on the front of the bell housing, depending on vehicle serial number...

1730323028402.png
 

simp5782

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Had a few of them lately when we pulled em where rust had formed around the torque converter snout in the back of the crank was causing some issues till we could get an equal pry on each side but most of them tended to just fall apart with any lift and pull.
 

Lugnuts

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Gentlemen, thank you for your response. Indeed, I located them beneath the plug on the right side of the bell housing, and upon removal, they practically leapt out. This serves as a reminder that I should not be lazy, take the time, and consult the manual for information, even though manuals can be time-consuming. I was in search of a straightforward answer.

As I confess my laziness, I will further press the issue and admit to another instance of my slothfulness (I promise, this is the last time).

The terminology may not be accurate, but at the back of the transmission lies what could be referred to as a transfer box. I assumed that by unbolting the central set of bolts around the case, it would detach with ease. Instead, I was left with a long shaft protruding from the rear of the transmission. I had anticipated a coupling where a male splined shaft would slide into a female counterpart at the back of the transmission, similar to the design of Ford and New Process. Are there any diagrams available for viewing?

Thank you.
 

Ronmar

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Location
Port angeles wa
Gentlemen, thank you for your response. Indeed, I located them beneath the plug on the right side of the bell housing, and upon removal, they practically leapt out. This serves as a reminder that I should not be lazy, take the time, and consult the manual for information, even though manuals can be time-consuming. I was in search of a straightforward answer.

As I confess my laziness, I will further press the issue and admit to another instance of my slothfulness (I promise, this is the last time).

The terminology may not be accurate, but at the back of the transmission lies what could be referred to as a transfer box. I assumed that by unbolting the central set of bolts around the case, it would detach with ease. Instead, I was left with a long shaft protruding from the rear of the transmission. I had anticipated a coupling where a male splined shaft would slide into a female counterpart at the back of the transmission, similar to the design of Ford and New Process. Are there any diagrams available for viewing?

Thank you.
The exploded diagrams in the parts manual(24P) might be of assistance here…
 

Lugnuts

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I went and looked at the parts diagram and see that it is provided to separate them at that point. I see that there is a part called the extension shaft and it appears that it should simply slide on to the shaft in the housing. For that to slide off of there, is there a procedure that needs to be done to separate that extension shaft from the main shaft. I will attempt later to look that up in the Tech Manual but if a yea or nay was thrown my way I wouldn't reject it.
 

Ronmar

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There are actually 2 shafts, one inside the other. The inner shaft engages the P6 clutch under the rear cover plate. I believe the transfer case slides over that extension shaft, so must be unbolted from the front of the extension housing… i seem to recall a sneaky(hidden) bolt in there somewhere when separating those two parts…
 

Lugnuts

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There are actually 2 shafts, one inside the other. The inner shaft engages the P6 clutch under the rear cover plate. I believe the transfer case slides over that extension shaft, so must be unbolted from the front of the extension housing… i seem to recall a sneaky(hidden) bolt in there somewhere when separating those two parts…
Thank you. I'm looking. I have the bad tran and case apart already. I will look there. Thank you
 

Ronmar

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The inner shaft brakes the 3rd planetary sun gear using the p6 clutch at the rear, to get us that low 1st gear.

The outer extension shaft driven by the 3rd planetary in the trans slides thru and drives the top gear of the transfer gearbox.
 
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