| [GMCnet] Restoration.Can't bring myself to drive the 3:07 final drive to Branson. [message #301817] |
Wed, 08 June 2016 02:04  |
BobDunahugh
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
Karma: 11
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Senior Member |
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Anyone ever use a cable come along to lower just the trans/FD out of a GMC? I have an A frame for use inside to lower the engine/trans / FD out. Seems like that would be more stable then a floor jack. Decided to change the FD before going to Branson today. And as long as I'm pulling the FD. Might as well pull the trans. And rebuild it. Take me about an hour,and a half to rebuild it complete on the bench. As I have all the parts on hand now anyway.Bob Dunahugh78 Royale Mouse House.
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| Re: [GMCnet] Restoration.Can't bring myself to drive the 3:07 final drive to Branson. [message #301824 is a reply to message #301817] |
Wed, 08 June 2016 06:56  |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Bob,
The gantry is fine for dropping the transmission alone; I've helped Manny
do it in just a few minutes: One hoist supporting the engine. Another
connected to the transmission with a dual hook chain from the right side
vent hole, beneath the transmission and back over to the vent hole.
Disconnect the Final Drive and leave it attached to the axles. Remove the
3 bolts from the TC, disconnect the hoses & linkage, then the bell housing
bolts. Lower away.
BUT you're proposing to lower the FD still attached. That's going to be a
very "nose heavy" load. IIRC, in that case Manny uses a special lift chain
with a third end to attach to the front of the transmission. I don't have
the dimensions for that rig. Maybe Manny will tell you.
Ken H.
On Wed, Jun 8, 2016 at 3:04 AM, Bob Dunahugh wrote:
> Anyone ever use a cable come along to lower just the trans/FD out of a
> GMC? I have an A frame for use inside to lower the engine/trans / FD out.
> Seems like that would be more stable then a floor jack. Decided to change
> the FD before going to Branson today. And as long as I'm pulling the FD.
> Might as well pull the trans. And rebuild it. Take me about an hour,and a
> half to rebuild it complete on the bench. As I have all the parts on hand
> now anyway.Bob Dunahugh78 Royale Mouse House.
> _______________________________________________
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] Restoration.Can't bring myself to drive the 3:07 final drive to Branson. [message #301841 is a reply to message #301817] |
Wed, 08 June 2016 11:39 |
kerry pinkerton
Messages: 2565
Registered: July 2012
Location: Harvest, Al
Karma: 15
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Senior Member |
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Bob, when I dropped my tranny FD, I laid a 4x4 across the back of the hatch. Drilled some 9/16 holes above the empty holes on the rear of the heads. Welded some 1/2" washers to the ends of some 1/2" all thread and put some 3/8 bolts and washers through the hole in the 1/2" washer and into the heads. Then the 4x4 was slipped over the all thread and nuts were tightened to take the load of the block.
I used my engine trolly and chain fall to support and lower the tranny and used a come-a-long to support the FD and then lowered them both a bit at a time. MUCH easier with two people.
I've heard of people just doing the FD. Ken Henderson made some plastic gasket guards that will protect the gasket while the FD is wrestled into place and hung temporarily on some temporary studs. The plastic is removed and the studs replaced with the correct bolts once regular bolts take up the weight.
Kerry Pinkerton - North Alabama
Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L
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