Home » Public Forums » GMCnet » [GMCnet] TH425 Lifting Device
| [GMCnet] TH425 Lifting Device [message #120571] |
Sat, 02 April 2011 11:22  |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
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In anticipation of Bill Bramlett's visit to teach some of us a little about
TH425 transmissions, I had to move my 3 spares from the farm to my shop.
Then they had to be shuffled about for cleaning and placement. And, they
had to be lifted onto and from the work bench. Finally, as it worked, out,
we had to remove 3 transmissions from coaches and install rebuilt ones.
To facilitate all that lifting, I devised a simple little device which
proved to be very effective. I've just posted .jpg and .pdf versions of the
CAD drawing for it at:
http://www.gmcmhphotos.com/photos/showgallery.php?cat=5741
Try it, you'll like it -- or find needed changes to pass to us.
Ken H.
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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] TH425 Lifting Device [message #120573 is a reply to message #120571] |
Sat, 02 April 2011 11:26  |
Dennis S
Messages: 3046
Registered: November 2005
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Ken
Could you also tell us where you sourced the parts required for the rebuild -- and part numbers?
Dennis Sexton
73 GMC
Germantown, Tn
Sent from my iPad
On Apr 2, 2011, at 11:22 AM, Ken Henderson <hend4800@bellsouth.net> wrote:
> In anticipation of Bill Bramlett's visit to teach some of us a little about
> TH425 transmissions, I had to move my 3 spares from the farm to my shop.
> Then they had to be shuffled about for cleaning and placement. And, they
> had to be lifted onto and from the work bench. Finally, as it worked, out,
> we had to remove 3 transmissions from coaches and install rebuilt ones.
>
> To facilitate all that lifting, I devised a simple little device which
> proved to be very effective. I've just posted .jpg and .pdf versions of the
> CAD drawing for it at:
> http://www.gmcmhphotos.com/photos/showgallery.php?cat=5741
>
> Try it, you'll like it -- or find needed changes to pass to us.
>
> Ken H.
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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Dennis S
73 Painted Desert 230
Memphis TN Metro
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| Re: [GMCnet] TH425 Lifting Device [message #120576 is a reply to message #120573] |
Sat, 02 April 2011 11:45 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Dennis,
I picked a place essentially at random from a Google search, and lucked out:
http://www.makcotransmissionparts.com/TH425.html
<http://www.makcotransmissionparts.com/TH425.html>My choice was based
primarily on the fact that they had a generic list (elsewhere on the site)
of the items in their kits -- most had no indication.
The fact that they're located nearby in AL escaped me until the parts
arrived the next day -- drop shipped from CA. The one missing part (a
neoprene pan gasket) came the following day, drop shipped from KY. Prompt,
efficient service.
Only later did I learn that they have a competitor 40 miles from me. He was
most helpful also: We called at 2 PM on Friday needing a TH425 torque
converter. He didn't have it, but rebuilt one for us to pick up at 5 PM.
Can't complain about that. :-)
When Bill needed a 3rd kit, he got it overnight from that local dealer.
HTH,
Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI+ & EBL
www.gmcwipersetc.com
On Sat, Apr 2, 2011 at 12:26 PM, Dennis Sexton <dennisfsexton@aol.com>wrote:
> Ken
>
> Could you also tell us where you sourced the parts required for the rebuild
> -- and part numbers?
>
>
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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] TH425 Lifting Device [message #120619 is a reply to message #120571] |
Sat, 02 April 2011 18:47 |
Gail Marks Cruiser
Messages: 125
Registered: August 2009
Location: Gold Coast, Australia
Karma: 0
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G'day
This looks far neater and user friendly than the chain and rope system I used, Ken thank you for sharing.
Mark Bennett
Gail & Mark's Cruiser
Gold Coast, Australia.
Motorhoming Lifestyle.com
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| Re: [GMCnet] TH425 Lifting Device [message #120629 is a reply to message #120576] |
Sat, 02 April 2011 20:49 |
Dennis S
Messages: 3046
Registered: November 2005
Karma: 2
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Senior Member |
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Ken,
Thank you for the parts information.
I would really enjoy participating in a transmission rebuild session!
Nice job on the lift jig.
Dennis
| Ken Henderson wrote on Sat, 02 April 2011 11:45 |
Dennis,
I picked a place essentially at random from a Google search, and lucked out:
http://www.makcotransmissionparts.com/TH425.html
<http://www.makcotransmissionparts.com/TH425.html>My choice was based
primarily on the fact that they had a generic list (elsewhere on the site)
of the items in their kits -- most had no indication.
The fact that they're located nearby in AL escaped me until the parts
arrived the next day -- drop shipped from CA. The one missing part (a
neoprene pan gasket) came the following day, drop shipped from KY. Prompt,
efficient service.
Only later did I learn that they have a competitor 40 miles from me. He was
most helpful also: We called at 2 PM on Friday needing a TH425 torque
converter. He didn't have it, but rebuilt one for us to pick up at 5 PM.
Can't complain about that. 
When Bill needed a 3rd kit, he got it overnight from that local dealer.
HTH,
Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI+ & EBL
www.gmcwipersetc.com
On Sat, Apr 2, 2011 at 12:26 PM, Dennis Sexton <dennisfsexton@aol.com>wrote:
> Ken
>
> Could you also tell us where you sourced the parts required for the rebuild
> -- and part numbers?
>
>
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Dennis S
73 Painted Desert 230
Memphis TN Metro
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| Re: [GMCnet] TH425 Lifting Device [message #120694 is a reply to message #120571] |
Sun, 03 April 2011 13:54 |
bumpersticker
Messages: 60
Registered: February 2004
Location: Redondo Beach, CA
Karma: 0
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Ken:
I like the looks of your TH425 lift fixture. It's got to be better than using chains and worrying about them slipping.
Do you have any pictures of the device in use? I would love to see them.
Bob Cook
78 Birchaven
75 Avion (In work)
Redondo Beach, CA
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| Re: [GMCnet] TH425 Lifting Device [message #120705 is a reply to message #120694] |
Sun, 03 April 2011 15:30 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Bob,
I thought I'd made some of a transmission hung with the lifting device from
the hoist I mounted on my work bench. But I couldn't find them when I went
to post the drawing to the photo site. And now the device is packed in a
foot locker at the "bottom of the pile" in the load for Patterson.
I'll try to remember to make and post some photos after we return.
Sorry.
Ken H.
On Sun, Apr 3, 2011 at 2:54 PM, Bob Cook <bcgmc@verizon.net> wrote:
>
>
> Ken:
>
> I like the looks of your TH425 lift fixture. It's got to be better than
> using chains and worrying about them slipping.
> Do you have any pictures of the device in use? I would love to see them.
> --
>
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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] TH425 Lifting Device [message #120803 is a reply to message #120798] |
Mon, 04 April 2011 10:27 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Thanks, Richard.
Naturally, those are much better photos than I'd have had anyway. :-)
Someone's sure to wonder about the lower bolt: My original concept was that
the lower bolt would extend well through the bellhousing until time to
replace it with a bolt, then I'd remove the hairpin clip and withdraw the
bolt. In practice, that didn't work because the extended bolt was in the
way of installing the transmission. I then moved the hairpin to hold the
3/4" extension of the bolt and that's the way we always used it -- it's
never been moved again.
So, the drawing shows the lower bolt/pin welded in place.
Ken H.
On Mon, Apr 4, 2011 at 10:50 AM, Richard Sowers <sowersr@nc.rr.com> wrote:
> I just put up a couple of shots of Ken's transmission hanger in action
> that I took during the rebuild session.
>
> http://www.gmcmhphotos.com/photos/showgallery.php?cat=5744
>
> Richard Sowers
> 74 Sequoia
> Fayetteville, NC
>
>
>
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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] TH425 Lifting Device [message #120861 is a reply to message #120807] |
Mon, 04 April 2011 19:22 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Matt,
It's worth a try, but remember that hatch rail is back there.
Ken H.
On Mon, Apr 4, 2011 at 12:20 PM, Matt Colie <mcolie@chartermi.net> wrote:
> Ken,
>
> A minor design addition.
> You said it is better balanced for the trans and final drive.
> Well, if you stuck an ear rearward and drilled another hole, you could make
> it so it balanced in either case.
>
> I am still annoyed that you waited until I got my trans down and back up to
> publish this. I may build one anyway just so I never have to use it.
>
> Matt
>
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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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