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Old 11-08-2006, 12:15 AM   #1
1985K10
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Location: CT
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700R4 Lockup?

I'm trying to get my 87GMC ready for the road, and just found the lockup harness was disconnected from the tranny. I'd like to test out the circuit to see if the TC is gonna lockup when I get the thing on the road, so is it possible to get the 12v signal while parked and idleing, or do I need to be moving and over a certain speed to get the "lockup" signal?

Thanks!
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07 Tahoe LT
70 Chevelle 450HP 383-TH400
77 GMC Royal Sierra~Resto in progress~
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Old 11-08-2006, 02:03 AM   #2
ProStreet83C10
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Re: 700R4 Lockup?

mine locks up after 4th gear...typically around 40 or so
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Zach Hall

1983 Chevy C10

R/T: .194
60': 2.322
330: 6.379
1/8: 9.803
MPH: 71.37
1000: 12.781
1/4: 15.314
MPH: 88.79
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Old 11-08-2006, 02:03 AM   #3
ProStreet83C10
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Re: 700R4 Lockup?

if i hold it in 3rd itll lock up around 45 i think
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Zach Hall

1983 Chevy C10

R/T: .194
60': 2.322
330: 6.379
1/8: 9.803
MPH: 71.37
1000: 12.781
1/4: 15.314
MPH: 88.79
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