"Better" tranny.

[Dragon]

tired of buzzing my engine on the highway. I get the same milage as modern F250s in town but on the highway they eat me alive I get the same in town and Highway 11mpg if I am doing good. I want more on the highway like 15 or 16 if I can.

[bumpside]

There hasnt really been any answers to this....

I want to keep the floor shift in my truck....but its going to be a street machine with a 390... IS there a decent option without breaking the bank or am I just going to have to run 2.8 gears to take advantage of the low first gear?

What about a Borg Warner T-10 four speed. They used them in allot of factory big Hp 390's and 406's in the 60s. The ones from the big body cars should be plenty strong. The cars were heaver than the Bumps are, I think.

[stangconv]

WOuld that fit in the stock location with stock shifter?

[Dragon]

No

[ares360]

how far back would that put the shifter?

[Dragon]

About 3 inches in front of the seat the shifter sticks up as the shifter is mounted on the side of the tail shaft. If you are under 5'8" you would need bucket seats to clear the shifter or really bend the shifter arm.
http://fiedlerh.home.att.net/BW.htm
http://www.mackstrans.com/BorgWarnerT10.html The shifter mounted on the 3 bosses on the tail shaft.
http://www.davidkeetoploaders.com/toplo ... celist.htm look how far back a top loader shifter sits. The Borg was almost in the same place.

If you are going to convert to car tranny use a Ford Top Loader Ford dumped the T10 because the FEs broke them all the time.

[bumpside]

About 3 inches in front of the seat the shifter sticks up as the shifter is mounted on the side of the tail shaft. If you are under 5'8" you would need bucket seats to clear the shifter or really bend the shifter arm.
http://fiedlerh.home.att.net/BW.htm
http://www.mackstrans.com/BorgWarnerT10.html The shifter mounted on the 3 bosses on the tail shaft.
http://www.davidkeetoploaders.com/toplo ... celist.htm look how far back a top loader shifter sits. The Borg was almost in the same place.

If you are going to convert to car tranny use a Ford Top Loader Ford dumped the T10 because the FEs broke them all the time.

I've Been looking for spec and data sheets on the T-10 for a while. Thanks for the links. Just a note, The T-10, the top loaders, and muncie four speeds have been around for a long time. All of them in some really outstanding rides from the Motor City. But.........they all have their limits on horse power and torque. Nothing is bullet proof. Not even $6000.00 Lenco. So it depends on what you are going to do with it. If you beat on anything enough it will break.

[bumpside]

One other thing. I run a T-5 in my Bump. Yes, I have blown up two of them. It's not made to be behind approx 385hp in a 4500 lb truck. That is, if you are going to dump the clutch at 4000 RPM and power shift all the time. It will not take that kind of abuse. However, If you drive it normal, It will last a life time. I use it because I like having the overdrive they are inexpensive and the shifter is in the middle of my console. Just more info, and my opinion.

[Dragon]

We used a Ford RUG Top loader with 1st, 4th and reverse behind a 2100hp Hemi in a rail, AA/FD. It never blew. I broke several T10s and Muncie Rock Crushers in street machines. There was a reason Ford and Chrysler dropped them for their own brand transmissions. They learned from the side loading mistakes of the Borg Warners, Saginaws and Muncies.

[stangconv]

what about the Ford ZF transmission? was that mentioned?

[averagef250]

The idea that a toploader can handle 2100HP through direct gear isn't that suprising. Any non-planetary stick can handle the tensile strength of it's input/mainshaft through direct gear.

It's the same as diesel pullers putting 1500 lb/ft of torque through a big input NV4500 in 4th gear. The tranny isn't doing anything, gears aren't under any load in direct. Try it in any other gear and you'll scatter it.

[bumpside]

We used a Ford RUG Top loader with 1st, 4th and reverse behind a 2100hp Hemi in a rail, AA/FD. It never blew. I broke several T10s and Muncie Rock Crushers in street machines. There was a reason Ford and Chrysler dropped them for their own brand transmissions. They learned from the side loading mistakes of the Borg Warners, Saginaws and Muncies.

I am always willing to learn.
If I remember the beginning of this topic, all the guy wants is a better trans for a daily driver. I think he said it was a 360 cid stocker in a Bump. Don't you think any of the stock T-10 four speeds would work? There cant' be much horse power or torque involved. I also don't have any problem with top loaders. That would be a good choice also.

[stangconv]

NM... I am not the TS haha...

[Dragon]

Top loader

[sideoilerfe]

I cruise with a NP 435 and 3.78s at 75 at almost 3700 so where are you getting 2200.

You're mistaken. My '70 hi-boy has 33x12.50x16.5's and I have Dana 60 with 4.10 gears and a NP435 and at 65MPH, I'm at 2800Rpm's. The stock tires these trucks had were 7.50X16 with the split rims which is about 33"tall..

And Averagef250 is correct, 3.73 gears, not 3.78.