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clinebarger · 10-17-2015, 09:21 PM

I'm usually hesitant to engage in threads like this......

Everyone know's I like 4L60E's, When built right they can handle 450-475 rear wheel torque for a LONG time. Past this you get into hard part stressing that is just is not worth the hassle or expense.

However you have certain people that can burn up a 4L60E with 350 ft lbs in a month, Of course when they drive it's like 24hours of LeMans with stop lights, Too many repetitive WOT 2-3 Up-shifts, 3-2/4-2/3-1/4-1 Down-shifts will overheat the 3-4 Clutch!!! And cause Friction failure.

4L80E....Great unit! Dual Feeding the Directs, Lube to Line mod, Boost Valve, HD Intermediate Snap-ring, Fix the AFL & TCC regulator leaks, Set end-play, Blueprint clutch clearance & feed hole sizes....can handle 800 ft lbs.

What nobody talks about is what a 4L80E robs under the curve, Not just ratios, But the weight of the drums. I can tell the difference! The more power you have....The less this matters.

10-17-2015, 09:21 PM	#16
clinebarger Senior Member Join Date: May 2009 Location: Fort Worth, TX Posts: 6,370	Re: 4L80E behind a 5.3 I'm usually hesitant to engage in threads like this...... Everyone know's I like 4L60E's, When built right they can handle 450-475 rear wheel torque for a LONG time. Past this you get into hard part stressing that is just is not worth the hassle or expense. However you have certain people that can burn up a 4L60E with 350 ft lbs in a month, Of course when they drive it's like 24hours of LeMans with stop lights, Too many repetitive WOT 2-3 Up-shifts, 3-2/4-2/3-1/4-1 Down-shifts will overheat the 3-4 Clutch!!! And cause Friction failure. 4L80E....Great unit! Dual Feeding the Directs, Lube to Line mod, Boost Valve, HD Intermediate Snap-ring, Fix the AFL & TCC regulator leaks, Set end-play, Blueprint clutch clearance & feed hole sizes....can handle 800 ft lbs. What nobody talks about is what a 4L80E robs under the curve, Not just ratios, But the weight of the drums. I can tell the difference! The more power you have....The less this matters.