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What's better, lockup or non-lockup?
https://www.slantsix.org/forum/viewtopic.php?t=51113
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Author:  oldnslo [ Fri Feb 15, 2013 3:43 am ]
Post subject:  What's better, lockup or non-lockup?

I want wide ratio gears, but I am having trouble finding a later model 904. Is it better to get the gearset and swap in to the nonlockup I already have, or should I just keep hunting?

Author:  Reed [ Fri Feb 15, 2013 8:08 am ]
Post subject: 

What is the intended use of the transmission? Drag racing? Highway cruising in a light car? Pulling stumps in a dump tuck?

Author:  bigslant6fan [ Fri Feb 15, 2013 12:11 pm ]
Post subject:  .

For a daily driver car,the LU trans will give you better fuel economy, for performance or towing uses, the non-LU is best. The wide ratio gearset could be put in a 67-up trans, but it is a PITA to get the shift points correct. I also don't recomend WR unless your car has 2.2 or 2.45 gears. With 2.76 and up gears,the car won't stay in 2nd gear long enough for highway passing or merging.

Author:  oldnslo [ Fri Feb 15, 2013 6:16 pm ]
Post subject:  Re: .

Quote:
For a daily driver car,the LU trans will give you better fuel economy, for performance or towing uses, the non-LU is best. The wide ratio gearset could be put in a 67-up trans, but it is a PITA to get the shift points correct. I also don't recomend WR unless your car has 2.2 or 2.45 gears. With 2.76 and up gears,the car won't stay in 2nd gear long enough for highway passing or merging.
Hmm...good point, maybe I should think more on this

Author:  oldnslo [ Fri Feb 15, 2013 6:26 pm ]
Post subject: 

Quote:
What is the intended use of the transmission? Drag racing? Highway cruising in a light car? Pulling stumps in a dump tuck?
Mostly, just driving around. But I wanted it to be able to get out of its own way from a standing start w/o sacrificing overall drivability...72 Valiant, not that light

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