| Author | Message | ||
| Larry Baird (Airhog)
Registered Member Username: Airhog Post Number: 152 Registered: 1-2001 Posted From: 209.79.85.124  Rating: N/A |
I have a MC-7 that I just put a 8V-71T and a RTO in and I am happy with it but..... I have a new 740 complete just rebuilt and will be having my ankle fused in a few weeks so no clutching for me for 3 months. Does anyone know of someone that can make the swap and some one that wants to upgrade to a RTO with a new clutch setup? I am in So Cal area. Larry | ||
| Glenn F Campbell (Gfcgfc1)
Registered Member Username: Gfcgfc1 Post Number: 2 Registered: 12-2008 Posted From: 63.214.229.42 Rating: N/A |
Hello Larry , good luck with your ankle! I also have a MC7 and am interested in the RTO !!! how many gears and what is the Overdrive ratio? Thanks so much for posting. Also did you ad a turbo to an 8v71N or is it a "turbo" engine? Thank you , Glenn | ||
| Glenn F Campbell (Gfcgfc1)
Registered Member Username: Gfcgfc1 Post Number: 3 Registered: 12-2008 Posted From: 63.214.229.42 Rating: N/A |
Hello Larry , good luck with your ankle! I also have a MC7 and am interested in the RTO !!! how many gears and what is the Overdrive ratio? Thanks so much for posting. Also did you ad a turbo to an 8v71N or is it a "turbo" engine? Thank you , Glenn | ||
| Jim Gibson (River_rat)
Registered Member Username: River_rat Post Number: 34 Registered: 1-2009 Posted From: 75.95.96.192 Rating: N/A |
Hey Larry. I too have a very weak ankle, left over from a loosing battle with a car when I was a kid. I have a 4104 and the workout with the clutch is tough so I have been trying to understand pnuematic assist to make it less of a stress. Not simple - wish I had an automatic just for that reason! Good luck, and do what the Dr says! Do you suppose the conversion could be a medical expense... | ||
| Larry Baird (Airhog)
Registered Member Username: Airhog Post Number: 153 Registered: 1-2001 Posted From: 173.58.244.205 Rating: N/A |
Thanks for your replies and Glen the engine is a turbo motor that I had rebuild and made 342 hp on the dyno, wish it was inner cooled 400. The RTO is a 10 speed and is .8 in overdrive. I have 11R24.5 tires and it will run faster then you want to ride in it. I like the setup but I have a chance to get this 740 and if it doesn't work out for the change I will be happy anyway. | ||
| Ralph Peters (Ralph7)
Registered Member Username: Ralph7 Post Number: 9 Registered: 3-2004 Posted From: 66.59.120.99 Rating: N/A |
When you do the switch use a air cooler for the trans, my switch is soon in process from 8-71/740auto to 8-71T that does not have the oil cooler on engine for auto trans, so air is easy and simple. Also the cost and not having that heat in the rads. If you were in Pa. the shop that will be doing mine does this stuff, also shop rate is low $$. | ||
| Tom Christman (Tchristman)
Registered Member Username: Tchristman Post Number: 80 Registered: 1-2006 Posted From: 66.218.33.156 Rating: N/A |
I had my 13 spd to Allison HT740 switch done at Pedco in Santa Fe Springs, Ca. They are one of the few shops that I've run into that does work the way I would do it. After the installation, there was nothing I needed to do to it. The labor with air to oil cooler and installing the remote oil filter was about $6,000.00. Pricey, but I'm very pleased. Good Luck, TomC | ||
| john w. roan (Chessie4905)
Registered Member Username: Chessie4905 Post Number: 1454 Registered: 10-2003 Posted From: 71.58.110.9  Rating: N/A |
You know, you could get one of those auto shift Roadrangers; one you have to use the clutch to start out, the other one the clutch is electronically controlled; no clutch pedal necessary. Since you already have one, the adapting would be minimal. Or you could put an air clutch on what you have to lighten the pedal effort. Going from that Roadranger to an auto with no overdrive is going to be a real eyeopener in fuel consumption increase. 3 to 4 miles to the gallon possible. | ||
| David Guglielmetti (Daveg)
Registered Member Username: Daveg Post Number: 43 Registered: 2-2009 Posted From: 64.163.110.102  Rating: N/A |
Forgive my ignorance, but when installing Fuller RoadRanger transmission, is the shift pattern the same or reversed? | ||
| Buswarrior (Buswarrior)
Registered Member Username: Buswarrior Post Number: 1586 Registered: 12-2000 Posted From: 76.66.19.195  Rating: N/A |
For shift pattern, it depends on what shift linkages you have, and how you adapt them to the transmission in question. There are quite a few busnut installs that are shifting "backwards", but if that's your ride, you'll get used to it in a hurry! Integrating some aspects of cab-over shift linkages to get the pattern "straightened out" have been successfully employed in some installs. happy coaching! buswarrior | ||
| john w. roan (Chessie4905)
Registered Member Username: Chessie4905 Post Number: 1460 Registered: 10-2003 Posted From: 71.58.110.9 Rating: N/A |
There is a remote shifter accessory version available that uses heavy Morse cables from slave to master controller to take care of that problem. | ||
| Larry Baird (Airhog)
Registered Member Username: Airhog Post Number: 154 Registered: 1-2001 Posted From: 173.58.244.205 Rating: N/A |
Mine is backwards, but if you have never driven one the other way then it's forward. I only use the clutch to start anyway and the milage at 33,000 lbs pulling a 4,500 lb toad is 8+ mpg. | ||
| David Guglielmetti (Daveg)
Registered Member Username: Daveg Post Number: 44 Registered: 2-2009 Posted From: 64.163.110.102 Rating: N/A |
So when using the remote shifter accessory with Morse cables...is there still "feel" when shifting, or is it the shove it and go? What about the COE shift tower...any better for feel? | ||
| john w. roan (Chessie4905)
Registered Member Username: Chessie4905 Post Number: 1462 Registered: 10-2003 Posted From: 71.58.110.9 Rating: N/A |
The feel is pretty much the same unless the cables aren't secured properly. Does give more flexibility in installation, plus, shift pattern can be opposite if desired. These cables are used for PTO and clutch controls in many applications, plus other uses and don't feel springy in those. | ||
| David Guglielmetti (Daveg)
Registered Member Username: Daveg Post Number: 47 Registered: 2-2009 Posted From: 64.163.110.102 Rating: N/A |
Okay, so if I wanted to squirel away (sorry, archive) information on shift towers, manual trans set-ups etc, where is a good source? Transmissions I know, shift towers and asst. stuff to to avoid backasswards shift pattern I don't. | ||
| Larry Baird (Airhog)
Registered Member Username: Airhog Post Number: 155 Registered: 1-2001 Posted From: 173.58.244.205 Rating: N/A |
I used a 5 speed tower and rod with bearings, ran it down the center along with the air line, pyro and Jake wires. Covered the tunnel and made the floor level and made a insulated box under the bed for the turbo. I also had to make some changes to the clutch linkage and used a reducer on the bell housing | ||
| David Guglielmetti (Daveg)
Registered Member Username: Daveg Post Number: 51 Registered: 2-2009 Posted From: 71.139.244.152 Rating: N/A |
Larry, is that the answer to my question or something else? | ||
| Larry Baird (Airhog)
Registered Member Username: Airhog Post Number: 156 Registered: 1-2001 Posted From: 71.102.2.43 Rating: N/A |
It's the answer I gave you, all the shifting parts are from a 72 Prevo. | ||
| David Guglielmetti (Daveg)
Registered Member Username: Daveg Post Number: 54 Registered: 2-2009 Posted From: 64.163.110.102 Rating: N/A |
Okay, thanks. |