questions on tranny mod...
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Joined: Dec 2003
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From: Minnesota
questions on tranny mod...
looking into a TC and VB for the A518.
questions that pertain to a lock-up switch for the TC:
1) how easy is it to run a switch? as far as wiring it up. seems like a simple computer control and easy wiring.
2) if i did this, i would want to protect the switch from other drivers that do not know how to operate it. are the TC's that are designed to lock-up with a switch allowed to run continously without lock-up (for the sake of someone else driving the truck and not using the switch)?
3) is it really worth it? are there mileage increases and/or performance increases that would offset the price?
4) what companies offer a lock-up TC for this application?
5) who is running a setup like this?
thank you in advance,
Pat
questions that pertain to a lock-up switch for the TC:
1) how easy is it to run a switch? as far as wiring it up. seems like a simple computer control and easy wiring.
2) if i did this, i would want to protect the switch from other drivers that do not know how to operate it. are the TC's that are designed to lock-up with a switch allowed to run continously without lock-up (for the sake of someone else driving the truck and not using the switch)?
3) is it really worth it? are there mileage increases and/or performance increases that would offset the price?
4) what companies offer a lock-up TC for this application?
5) who is running a setup like this?
thank you in advance,
Pat
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Joined: Sep 2004
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From: New Lexington, Ohio
Den is right. There is a passage for lockup fluid in the case in between the V/B and the pump you need. If you want lockup, you need a complete 94-96 47RH tranny. Also , If you are a 4WD truck,
you may have transfer case issues, maybe some one can chime in on that one, the part #'s for the output shafts are different, doesn't mean they wouldn't work though.
Jon
you may have transfer case issues, maybe some one can chime in on that one, the part #'s for the output shafts are different, doesn't mean they wouldn't work though.
Jon
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Pat, all you need to run a lockup converter in your tranny is a L/U valve body and a L/U input shaft. You can add the third steel ball into the reaction shaft support that bolts to the back of the pump housing or get a L/U pump, the only difference is the one steel ball.
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From: Golden, Colorado
These parts would have to be aftermarket because the 727 never had a L/U torque converter. Unless these parts from a 94 and newer tranny would fit in the older one, but I seriously doubt it.
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APW50, while non of the cummins dodges had a 727 with L/U, they were available in other 727s since 1978. Also if it is a 727 it is not an overdrive, the case is totally different where the tailshaft bolts on between 727s and 518, 618, 46, 47, and 48 RH and RE. All 518, 618, 47rh yada yada, are round bolt pattern for the T/C, any dodge married 205, 231, 241, 271, 208 T/C will bolt on, the autos all had the same output spline, unlike some of the manual tranny ones.
The valve body isn't so touchy but the input and pump needs to be for your year tranny, if switching to L/U. Ma mopar is one source for new parts, if you have the bucks I would go with 47rh, you get a lot of upgrades built in. You can mix and match internals if you know what you are doing, I used a lot of 48re internals in an 84 dodge 4x4 tranny I built.
The valve body isn't so touchy but the input and pump needs to be for your year tranny, if switching to L/U. Ma mopar is one source for new parts, if you have the bucks I would go with 47rh, you get a lot of upgrades built in. You can mix and match internals if you know what you are doing, I used a lot of 48re internals in an 84 dodge 4x4 tranny I built.