4L60 non lock-up..vs lock-up
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Junior Member
Joined: Sep 2004
Posts: 8
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Car: 1990 iroc-z
Engine: 5.7 litre
Transmission: 4L60
4L60 non lock-up..vs lock-up
HI,
I have a 1990 iroc-z with the 350 ci and a 4L60. awhile back i had tranny work done and told the guy i was going to use a non loc-up converter. after i drove it a few times, was not happy with the loss of overdrive, so i installed stock converter...put it in drive and car stalled like i dumped the clutch in a standard..installed brand new street fighter converter...same thing..PLEASE HELP!!
I have a 1990 iroc-z with the 350 ci and a 4L60. awhile back i had tranny work done and told the guy i was going to use a non loc-up converter. after i drove it a few times, was not happy with the loss of overdrive, so i installed stock converter...put it in drive and car stalled like i dumped the clutch in a standard..installed brand new street fighter converter...same thing..PLEASE HELP!!
Joined: Feb 2017
Posts: 4,174
Likes: 569
From: Meriden, CT 06451
Car: 84 TA orig. 305 LG4 "H" E4ME
Engine: 334 SBC - stroked 305 M4ME Q-Jet
Transmission: upgraded 700R4 3200 stall
Axle/Gears: 10bolt 4.10 Posi w Lakewood TA Bars
Re: 4L60 non lock-up..vs lock-up
Did you rotate the converter at least 3 times around while pushing it towards the transmission to fully seat the converter?
Also, a non-lockup converter would not cause you to lose overdrive. The only thing you should lose is the lockup.
You should still have all 4 gears.
Also, a non-lockup converter would not cause you to lose overdrive. The only thing you should lose is the lockup.
You should still have all 4 gears.
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