Thread: 700r4 Lockup Solenoid vacuum switch
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Old 09-10-2015, 08:28 PM   #4
jjzepplin
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Location: Ruskin Florida
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Re: 700r4 Lockup Solenoid vacuum switch
Sound like you already have an aftermarket unit. TCI I think. So long ago when I got mine. Still works great. Locks up a clutch in the torque converter kinda making it like a manual trans.
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