Measurement needed [message #255797] |
Fri, 18 July 2014 13:44 |
Hal StClair
Messages: 971 Registered: March 2013 Location: Rio Rancho NM
Karma: -12
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Would anyone have the dimensions for the CV flange to flange width of our final drives? I'd like to get the dimensions pretty close, better than I can manage from under the coach. If someone had one on a bench that would be great. I'm trying to work out the axle lengths needed on the diesel swap and which IFS to use. Any help would certainly be appreciated.
Thanks again,Hal
"I enjoy talking to you. Your mind appeals to me. It resembles my own mind, except you happen to be insane."
1977 Royale 101348,
1977 Royale 101586, Diesel powered,
1974 Eagle Bus 45',w/slideout,
Rio Rancho, NM
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Re: Measurement needed [message #255812 is a reply to message #255797] |
Fri, 18 July 2014 18:54 |
bwevers
Messages: 597 Registered: October 2010 Location: San Jose
Karma: 5
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Hal,
Your project sounds interesting. Are you planning on using the transmission and
transfer case from a C2500 4x4 truck? That sounds like a lot of work.
I don't know of anyone who has attempted that. You would probably have
to raise the floor in the interior. And then you might have to raise the chassis up.
I've heard of people using the standard TH425 transmission with an adapter plate to connect
to a diesel engine. That would seem easier than making new axles and transmission mounts.
And then the diesel engine gets it's power at a lower RPM, so it might need a gear/torque converter change.
Here is a link to photos of a diesel conversion:
http://www.gmcmhphotos.com/photos/restoration-and-diesel-conversion/p4230.html
Regards,
Bill
Bill Wevers GMC49ers, GMC Western States
1975 Glenbrook - Manny Powerdrive, OneTon
455 F Block, G heads
San Jose
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Re: Measurement needed [message #255817 is a reply to message #255812] |
Fri, 18 July 2014 19:45 |
Hal StClair
Messages: 971 Registered: March 2013 Location: Rio Rancho NM
Karma: -12
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It seems I've been collecting parts more than getting much accomplished. I recently purchased a H1 Hummer complete 6.5 TD with 4l80e with only 12,500 miles on the clock. I've been trying to source all the electric connectors to keep things 'OEM' looking and make trouble shooting easier down the road. I've shifted my intent on going with the early mechanical pump to keeping the late electronic one and all the electronic controls such as throttle,cruise and transmission. I found a B/W Morse transfer case built for a Revcon that's only 12"x21"x5" and only needs a simple 3/4" adapter to work. I also sourced the Dana 70 from the Revcon but am having a real challenge adapting the 1 ton chevy outboard CV's to a simple u joint. I may have to use the AAM 9.25" IFS chevy axle I have. I know the Dana is stronger but I'm at a stand still right now.
I've been looking for a supplier for a 8.5", 3/16 frame to give me a 2.5" body lift. Found someone that can do it in 1/4" but I don't think I need that much meat here, after all it's only 1/8" stock.
I've also found a couple of companies that sell a modified valve body and computer to turn the 4l80e into a 5 or 6 speed. You really need to change the 1st/second gears to take advantage of the extra gears but I don't think an extra $3000 for the modification would be worth it.
Thanks for the interest Bill, I'll try to document the build with pictures as I go.
Hal
"I enjoy talking to you. Your mind appeals to me. It resembles my own mind, except you happen to be insane."
1977 Royale 101348,
1977 Royale 101586, Diesel powered,
1974 Eagle Bus 45',w/slideout,
Rio Rancho, NM
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Re: Measurement needed [message #255818 is a reply to message #255817] |
Fri, 18 July 2014 19:51 |
lotsofspareparts
Messages: 726 Registered: May 2014 Location: Arlington, WA
Karma: -9
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Senior Member |
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Hal StClair wrote on Fri, 18 July 2014 17:45It seems I've been collecting parts more than getting much accomplished. I recently purchased a H1 Hummer complete 6.5 TD with 4l80e with only 12,500 miles on the clock. I've been trying to source all the electric connectors to keep things 'OEM' looking and make trouble shooting easier down the road. I've shifted my intent on going with the early mechanical pump to keeping the late electronic one and all the electronic controls such as throttle,cruise and transmission. I found a B/W Morse transfer case built for a Revcon that's only 12"x21"x5" and only needs a simple 3/4" adapter to work. I also sourced the Dana 70 from the Revcon but am having a real challenge adapting the 1 ton chevy outboard CV's to a simple u joint. I may have to use the AAM 9.25" IFS chevy axle I have. I know the Dana is stronger but I'm at a stand still right now.
I've been looking for a supplier for a 8.5", 3/16 frame to give me a 2.5" body lift. Found someone that can do it in 1/4" but I don't think I need that much meat here, after all it's only 1/8" stock.
I've also found a couple of companies that sell a modified valve body and computer to turn the 4l80e into a 5 or 6 speed. You really need to change the 1st/second gears to take advantage of the extra gears but I don't think an extra $3000 for the modification would be worth it.
Thanks for the interest Bill, I'll try to document the build with pictures as I go.
Hal
I make $18 per hour and am struggling, I wish I had your kind of money.
Jared
Jared & Tina Lazaron + 14yr old Daughter.....
77 Eleganza II "Recherché".....
73 Canyon Lands 230 "Elephant"
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Re: Measurement needed [message #255822 is a reply to message #255818] |
Fri, 18 July 2014 20:01 |
Hal StClair
Messages: 971 Registered: March 2013 Location: Rio Rancho NM
Karma: -12
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Senior Member |
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I bought an engine/trans from a 12,500 mile H1 Hummer for $3000, I paid $100 for the transfer case and $100 for the Dana 70 and stub axles. I do most all of the work myself. I guess I don't get the 'money' comment.
Hal
"I enjoy talking to you. Your mind appeals to me. It resembles my own mind, except you happen to be insane."
1977 Royale 101348,
1977 Royale 101586, Diesel powered,
1974 Eagle Bus 45',w/slideout,
Rio Rancho, NM
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Re: Measurement needed [message #255827 is a reply to message #255822] |
Fri, 18 July 2014 20:17 |
lotsofspareparts
Messages: 726 Registered: May 2014 Location: Arlington, WA
Karma: -9
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Senior Member |
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Hal StClair wrote on Fri, 18 July 2014 18:01I bought an engine/trans from a 12,500 mile H1 Hummer for $3000, I paid $100 for the transfer case and $100 for the Dana 70 and stub axles. I do most all of the work myself. I guess I don't get the 'money' comment.
Hal
That's my bad, the way I read the post I was under the impression you bought a H1 Hummer and robbed the running gear out of it.
........ Carry on Sir, can't wait to see it finished.
LOL, Jared
Jared & Tina Lazaron + 14yr old Daughter.....
77 Eleganza II "Recherché".....
73 Canyon Lands 230 "Elephant"
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Re: [GMCnet] Measurement needed [message #255829 is a reply to message #255822] |
Fri, 18 July 2014 20:14 |
James Hupy
Messages: 6806 Registered: May 2010
Karma: -62
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Hal, best to "soft pedal" Jared's evening comments. I have met him, he is
young, but the force is strong with him.( grin)
Jim Hupy
Salem, Or
78 GMC ROYALE 403
On Jul 18, 2014 6:01 PM, "Hal StClair" wrote:
> I bought an engine/trans from a 12,500 mile H1 Hummer for $3000, I paid
> $100 for the transfer case and $100 for the Dana 70 and stub axles. I do
> most
> all of the work myself. I guess I don't get the 'money' comment.
> Hal
> --
> 1977 Royale 101348,
>
> 1977 Royale 101586,
>
> 1974 Eagle Bus 45',w/slideout
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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Re: Measurement needed [message #255876 is a reply to message #255797] |
Sat, 19 July 2014 15:55 |
midlf
Messages: 2212 Registered: July 2007 Location: SE Wisc. (Palmyra)
Karma: 1
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Senior Member |
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Hal StClair wrote on Fri, 18 July 2014 13:44Would anyone have the dimensions for the CV flange to flange width of our final drives? I'd like to get the dimensions pretty close, better than I can manage from under the coach. If someone had one on a bench that would be great. I'm trying to work out the axle lengths needed on the diesel swap and which IFS to use. Any help would certainly be appreciated.
Thanks again,Hal
21-1/4" with RH axle extension fully seated. This measurement is from my original 3.07
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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Re: Measurement needed [message #255878 is a reply to message #255876] |
Sat, 19 July 2014 16:22 |
Hal StClair
Messages: 971 Registered: March 2013 Location: Rio Rancho NM
Karma: -12
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Senior Member |
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Is that measurement from the outside flange or from the flat area where the cv flush seats? It's probably only about a 1/4" recess but I'm trying to get as close as possible. Thank you, Hal
"I enjoy talking to you. Your mind appeals to me. It resembles my own mind, except you happen to be insane."
1977 Royale 101348,
1977 Royale 101586, Diesel powered,
1974 Eagle Bus 45',w/slideout,
Rio Rancho, NM
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Re: Measurement needed [message #255881 is a reply to message #255878] |
Sat, 19 July 2014 17:22 |
midlf
Messages: 2212 Registered: July 2007 Location: SE Wisc. (Palmyra)
Karma: 1
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Senior Member |
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Hal StClair wrote on Sat, 19 July 2014 16:22Is that measurement from the outside flange or from the flat area where the cv flush seats? It's probably only about a 1/4" recess but I'm trying to get as close as possible. Thank you, Hal
I'm not familiar with the therm "cv flush seats". The dimension I gave is the overall out side distance from where the inner CV bolts to the face. The recess there is to accommodate the seal cup of the inner CV joint. Of the two dimensions one could get the one I gave is the greater of the two.
I'll post some pictures a bit later tonight.
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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Re: Measurement needed [message #255909 is a reply to message #255881] |
Sat, 19 July 2014 21:38 |
midlf
Messages: 2212 Registered: July 2007 Location: SE Wisc. (Palmyra)
Karma: 1
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Senior Member |
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midlf wrote on Sat, 19 July 2014 17:22 The dimension I gave is the overall out side distance from where the inner CV bolts to the face. The recess there is to accommodate the seal cup of the inner CV joint. Of the two dimensions one could get the one I gave is the greater of the two.
I'll post some pictures a bit later tonight.
Four pictures of the FD flange measurements starting here:
http://www.gmcmhphotos.com/photos/miscellaneous-pictures/p55292-fd-flange-measurements.html
When I was taking the photos I realized I didn't get the dimension exactly correct. It is 21-3/16"
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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Re: Measurement needed [message #255916 is a reply to message #255909] |
Sat, 19 July 2014 22:30 |
Hal StClair
Messages: 971 Registered: March 2013 Location: Rio Rancho NM
Karma: -12
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Senior Member |
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Thank you so much Steve,that's perfect. I owe you one.
Hal
"I enjoy talking to you. Your mind appeals to me. It resembles my own mind, except you happen to be insane."
1977 Royale 101348,
1977 Royale 101586, Diesel powered,
1974 Eagle Bus 45',w/slideout,
Rio Rancho, NM
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Re: Measurement needed [message #255928 is a reply to message #255916] |
Sun, 20 July 2014 04:51 |
midlf
Messages: 2212 Registered: July 2007 Location: SE Wisc. (Palmyra)
Karma: 1
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Senior Member |
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Hal StClair wrote on Sat, 19 July 2014 22:30Thank you so much Steve,that's perfect. I owe you one.
Hal
Yeah it helps to have spare parts laying around, even if they do take up space. If you need a more accurate number I can drag the spare FD off the shelf and set it up on the bench. However there is a lot of play in the inner CV joint to cover for any small difference. That CV appears to have been made to work with 70's automotive production tolerances. <GRIN>
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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