Looking for an HT 740 Transmission

[Bill B /bus]

The bad news is the transmission is toast. Presently  in the shop in Houston, British Columbia. If any of our Canadian friends know of a HT 740 is a good known condition please have them contact me either email - n1xrb@aol.com pr by phone at two zero seven -512- 0175.
I have a lead on one but its in the the lower part of lower 48. Closer would be quicker.

Thanks
Bill

[luvrbus]

Timkar knows were one is at in BC or probably has one in his shop if all else fails Blake has a couple in PA and I have one in AZ

good luck

[AdamWalkup]

Remember that not just any 740 will work correctly behind a series 50, I would have one rebuilt for that engine

[luvrbus]

Remember that not just any 740 will work correctly behind a series 50, I would have one rebuilt for that engine

Why a series 50 is not going to damage a 740 maybe change the shift points which is no big deal.He had a HT 70 which is a 6 speed if it were me I would be looking for a B400 with 2 overdrives to help the series 50 out a little IMO he would be better off with the B400 than with a 1:1 final on the 740 behind his series 50

[Bill B /bus]

740 is pretty much a bolt in proposition. Any nicer transmission with electronics is a job I don't want to do this far north at the end of August.

Timkar needs to respond as he is in BC.

Bill

[luvrbus]

Change your heading to include the location BC Tim will answer

[TomC]

HT741 is the electronic version that will work with the Series 50. The B400 or B500 would be a better choice. Basically the same first 4 gears as the HT740, but with 2 overdrives (.74 and .64). Good Luck, TomC

[Timkar]

Allison HT747 transmission and tranny portion of stone bennet shifter. Was removed from an MC9 with a 6V92.
Working fine when removed. Located in Cawston BC (1/2 hr from Canada/US border) Email sent with more pics.

[Dave5Cs]

Jason in PA has had one for sale off his  8v-71 engine he changed out. Its in the sale section of this board.
Dave

[Timkar]

Just sent an email off to a guy that has an MC7 for sale in Houston. His is a 4 speed but maybe he will know if there is a 740 around close to you...Just heard back from fellow who lives up there and he doesn't know of any in the local area.

[luvrbus]

The 747 should work for him it's same as 740 with all the updates

[AdamWalkup]

We have done several 50 & 60 conversions, and agree the 740 is not the best choice, but often the easiest to install and operate, bulletproof and reliable, however I want the proper stall speed converter, and shift points.   The 740 shifts hard, so you really want it set up properly.  I don't have my notes, but I'm thinking it's a 1600-1700 rpm converter rather then a 2,000-2,100.  Put the right set up in, and you'll be good for a long time.  Put a tranny set up from a 2 cycle, and you'll make it home, but be pulling it again to make it righf

[TomC]

As long as the converter has a stall of around 1600, both an 8V-71 and the Series 50 have 2100rpm engine speed. With only 4 gears, the programming of either engine will work fine.
When I had my HT740 put into my truck, they used the soft shift option. It shifts from 1st converter to 2nd converter to 2nd lockup as normal, but when it shifts from 2nd to 3rd, the converter unlocks during the shift to make it smooth then relocks up when in gear. 3rd to 4th also does this. Good Luck, TomC

[TomC]

Just to show you, My V730 on partial pedal will upshift at 1600 and come down to 1100. Full pedal shifts occur at 1900-which I like, since I can always hold the transmission in with the shifter for higher RPM.

[Bill B /bus]

Looking at the options. Will keep the board informed of decision.

The electronic B5000 would be ideal with the overdrive. But at this time just not a feasible option.

The changes recommended ie shift points and torque converter, field work or Allision shop?

Bill