V730 Overdrive

[olebusman]

 Hello Bill, olebusman from fl. here.  I wonder it Bill Teals bus is still around. Do you have any idea?

[Paso One]

I have the 4:10 rear end and the stock V730 on 11R x22.5 tires and the top speed I have achieved is 69 however I usually drive at 65 MPH
I have recently changed the rear tires to 315 / 80R x 22.5 not sure how that will effect the above.

[Geoff]

I said 12-22.5's but I actually run 315R-22.5's which are slightly wider and taller and doing the math it gets you up to almost 80 mph @ 2300 rpms, which is borne out by my speedometer.

[busfan]

George
One bus was the original Bill Teal that developed the overdrive unit and the other was in FL on a 4106. Mine is the only other one. 9 years but the torque of over 1000 ft lbs finally broke the shaft.

Hey Bill, you engine is turning the wrong way!  You have completely voided your warranty!   Wow that sounds like alot of work but worth it, if doing alot of driving..

So the A730 and 731 turn different directions but does this mod care? 
Was looking for the Teal modification book on google and dragged up this old post http://www.busnut.com/bbs/messages/233/19273.html 

PS. My friend from High School, Brent Teal, patented that stair-climber type bicycle.  And successfully sued a Chinese knockoff company.  Those Teals are crafty.

[Bill Gerrie]

Olebusman (John)
I talked to Bill Teal awhile ago now and he said that his bus was sold a long time ago and he has no idea of where it is now.
George
The V730 and the V731 are exactly the same transmission except for the valve body. You can change the valve body from one to the other. The V730 is hydraulic and the V731 is electronic. The main modification I had to make to Bill's over drive unit was the flywheel. I run a 6V92 and the VS2-8 was for an 8V71. Different end on the crankshaft. I had to have the flywheel machined to fit the 92 series. I have been running the over drive unit for 12 years now and love it. 

[Utahclaimjumper]

  When Bill retired from "bussing" many years ago,,(when I owned a 4106 with a VS2-8 ),, bill  agreed to send me everything he had left over from the transmission alteration effort for the cost of shipping.. I received two full pallets of gears, shafts, new clutch packs, new brake shoes, housings, gaskets sets, etc etc.. Shipping cost was $175.00...
   When I sold my coach to a friend in Washington state, he inherited all this trove with the sale,,,,and I still don't think he has looked at all this stash, and I'm sure he has it stored in a shed out back.>>>Dan

[uncle ned]

Just came back from a trip to NC state to see granddaughter.

Coming down inter-state 40 I am turning 1600 rpm at 65 mph by my GPS

I am running 24.5 hankooks on Huggy

She has a 6v92 and v730.

Have no idea what the rear ratio is.

uncle ned

ps Huggy is a Jara Smith creation which a lot of old timers here will remember.

[Bill Gerrie]

My top rpm is set by the computer to 2110. My rear end ratio is 4.56 to 1 without the over drive unit. When I engage the overdrive unit the rear end ratio effectively becomes 3.5 to 1. My fuel mileage went from 6 mpg to 8.2 mpg using the overdrive unit. That was on a 7000 mile trip.

[uncle ned]

My wish for "huggy" is a series 50 with a 731.  But with the rpm range of the 50 it would need some kind of overdrive I think.

Just wishing most likely never going to happen to a Old Man.

Uncle Ned

[chessie4905]

install the 4104 3:55 rear. Buy a cv joint rated for the torque generated for one end of driveshaft to deal with the angle difference. There is an outfit in Fla. that can make big ones.

[TomC]

AMGeneral used the same rear end as new look GMC. With that overdrive unit, you're spinning the transmission dangerously fast. The fastest input is supposed to be 2,600rpm. Good luck, TomC

[Bill Gerrie]

I wouldn't want anything less then a 4.10 rear end or you have no bottom end. You may go fast at the top end but the take off will suck. Soft ground forget it. I run a 4.56 to 1 and sometimes wish I still had the 5.375 to 1 when I have the overdrive unit.