27/11/24 - 07:59 AM


Author Topic: 2000+ Miles Last Week  (Read 4091 times)

Offline Scott Crosby

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  • 1961 GM 4516 - DD 6v71, Allison VH9, 4.125 Gear
    • Bus Grease Monkey
Re: 2000+ Miles Last Week
« Reply #15 on: March 04, 2012, 10:56:01 AM »
Paul what engine was that with?   I would assume the off the line starts with the 410 or 411 would be really slow.
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Offline Paso One

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  • Last Canadian built 5303
Re: 2000+ Miles Last Week
« Reply #16 on: March 04, 2012, 11:21:06 AM »
Slow and Loud ;D to get rolling with the 6V71

I drove a Fishbowl 8V71 and the VS2-8 and it would jump off the start and I never had it floored and it cruised at 75 MPH

I'm counting on the V730 and the 4:10 to suit my driving styles and life.
1968 5303 6V92 V730 4:10 air shift PS
1973 MCI 5 B 8V71  4 speed manual
1970 MCI 5 A  8V71 4 speed
1988 MCI 102 A3 8V92T Mechanical
1996 MCI 102 D3 C10 Cat engine 7 speed manual Parting out the mechanicals.
Saskatoon Sk,

Offline Scott Crosby

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  • Posts: 2007
  • 1961 GM 4516 - DD 6v71, Allison VH9, 4.125 Gear
    • Bus Grease Monkey
Re: 2000+ Miles Last Week
« Reply #17 on: March 04, 2012, 02:56:09 PM »
I sent Loren an email this morning to see if he had any rear ends or gears, and trans also.  Loren was a previous owner of my bus, I think he owned it for like 20 years before he sold it to the movie team, and I think I read that he drove the bus for them for the film too...
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Offline lostagain

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Re: 2000+ Miles Last Week
« Reply #18 on: March 04, 2012, 02:59:29 PM »
Scott, I have a 4.11 out of a MC5C. I could give you more details if you need.

JC
JC Alacoque
Blackie AB
1977 MC5C, DD 6V92TA, Allison HT 740
Lots of space to park for a visit
Shop to help fix your bus

Offline buswarrior

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  • MC8 1975 8V71 HT740
Re: 2000+ Miles Last Week
« Reply #19 on: March 04, 2012, 03:11:39 PM »
He needs a V-drive axle and differential.

I'm thinking the 6V71 is not going to like a gear much taller than you've got now.

Simply not enough power to pull that high a gear once the headwinds and the road rises ahead of you.

But, assembling all the bits and pieces to make upgrades on your schedule, instead of being forced into it, is good.

If it was me, I'd leave what you've got and just do a V730 upgrade with some trickery to control the torque converter lock-up.

Otherwise, you'll want to be doing an engine power upgrade as well as transmission and diff gears.

happy coaching!
buswarrior
New project: MCI 102D3, 1995, Cat 3176b, Eaton Autoshift
Frozen, north of Toronto, Ontario

Offline Scott Crosby

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  • Posts: 2007
  • 1961 GM 4516 - DD 6v71, Allison VH9, 4.125 Gear
    • Bus Grease Monkey
Re: 2000+ Miles Last Week
« Reply #20 on: March 04, 2012, 03:52:05 PM »
Anyone have a V730 for sale?   I think that's where I want to start.  I think if I need to do a gear change it would be only a small change not to something aggressive like a 411.  Luke mentioned some alterations or modifications he would have to do to get that trans in but that he could.  We didn't talk about if he had one though but since he didn't say he did I'm guessing he doesn't, or would have to locate one. 
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Offline luvrbus

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Re: 2000+ Miles Last Week
« Reply #21 on: March 04, 2012, 03:59:52 PM »
There is a rebuilt V730 on the BCM for sale 1000 bucks in CA

Offline Scott Crosby

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  • 1961 GM 4516 - DD 6v71, Allison VH9, 4.125 Gear
    • Bus Grease Monkey
Re: 2000+ Miles Last Week
« Reply #22 on: March 04, 2012, 04:05:33 PM »
do you have a link??
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Offline buswarrior

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  • MC8 1975 8V71 HT740
Re: 2000+ Miles Last Week
« Reply #23 on: March 04, 2012, 04:19:30 PM »
Whipping off some google stuff:

Here's a re-builder:

http://www.transmachine.com/restoration/

Here's someone selling one:

http://www.livicksgarage.com/allison_V730_transmission.php

Here's one of those compilation sites for heavy parts:

http://www.heavytruckparts.net/search.php?qsearch=TRUE&ManufMake=ALLISON&Model=V730&PartID=4000

Here's an Allison publication that would be good to have:

http://www.allisontransmission.com/servlet/DownloadFile?Dir=publications/pubs&FileToGet=SA1494EN.pdf

Another 730 and stuff for sale:

http://gmbusguy.com/gallery/index.php?cat=3

you get the idea...

happy coaching!
buswarrior

New project: MCI 102D3, 1995, Cat 3176b, Eaton Autoshift
Frozen, north of Toronto, Ontario

Offline Paso One

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  • Last Canadian built 5303
Re: 2000+ Miles Last Week
« Reply #24 on: March 04, 2012, 04:38:09 PM »
Modifications needed
1968 5303 6V92 V730 4:10 air shift PS
1973 MCI 5 B 8V71  4 speed manual
1970 MCI 5 A  8V71 4 speed
1988 MCI 102 A3 8V92T Mechanical
1996 MCI 102 D3 C10 Cat engine 7 speed manual Parting out the mechanicals.
Saskatoon Sk,

Offline Paso One

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  • Posts: 145
  • Last Canadian built 5303
Re: 2000+ Miles Last Week
« Reply #25 on: March 04, 2012, 04:40:30 PM »
after done
1968 5303 6V92 V730 4:10 air shift PS
1973 MCI 5 B 8V71  4 speed manual
1970 MCI 5 A  8V71 4 speed
1988 MCI 102 A3 8V92T Mechanical
1996 MCI 102 D3 C10 Cat engine 7 speed manual Parting out the mechanicals.
Saskatoon Sk,

Offline Paso One

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  • Posts: 145
  • Last Canadian built 5303
Re: 2000+ Miles Last Week
« Reply #26 on: March 04, 2012, 04:45:42 PM »
I took the support around the opening and clamped it to my small opening and cut away. Here is the start off the modifications.
1968 5303 6V92 V730 4:10 air shift PS
1973 MCI 5 B 8V71  4 speed manual
1970 MCI 5 A  8V71 4 speed
1988 MCI 102 A3 8V92T Mechanical
1996 MCI 102 D3 C10 Cat engine 7 speed manual Parting out the mechanicals.
Saskatoon Sk,

Offline Paso One

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  • Posts: 145
  • Last Canadian built 5303
Re: 2000+ Miles Last Week
« Reply #27 on: March 04, 2012, 05:09:27 PM »
This the cut out before reinforcing. I'll let Bill Gerrie Chime in here I believe he did the same thing as above but I think he said " I would have cut the hole bigger if I'd known better "  Is that a correct qoute Bill :)
1968 5303 6V92 V730 4:10 air shift PS
1973 MCI 5 B 8V71  4 speed manual
1970 MCI 5 A  8V71 4 speed
1988 MCI 102 A3 8V92T Mechanical
1996 MCI 102 D3 C10 Cat engine 7 speed manual Parting out the mechanicals.
Saskatoon Sk,

Offline Scott Crosby

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  • Posts: 2007
  • 1961 GM 4516 - DD 6v71, Allison VH9, 4.125 Gear
    • Bus Grease Monkey
Re: 2000+ Miles Last Week
« Reply #28 on: March 05, 2012, 04:43:06 AM »
There is a rebuilt V730 on the BCM for sale 1000 bucks in CA


Can You please get me a link to this, I can't find the info on it.   

Thank you
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Offline Bill Gerrie

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Re: 2000+ Miles Last Week
« Reply #29 on: March 05, 2012, 08:32:02 AM »
Paso One
You are right about removing as much as possible. I just put my V731 back after checking the O/D unit. I made the hole even bigger. I even had to remove an inch of metal at the output shaft end to gain a little more clearance. The driveshaft flange got jambed in there and there was no way I was going to remove the transmission again to free it. Remember you have to put a piece of metal at the bottom of the opening to hold the outside rigid.
Scott
The VS2-8 has too tall a gear for the 6V71. Use the V730 or a VS2-6. You will die on grades if you go too low a number for the rear end as well.
Bill 
1965 New Look GMC TDH5303 6V92TA DDECIV & V731 ATEC with Overdrive