If you're working on a GM transmission – like the 4L60, 4L60E, 4L65E, or 4L70E – this Lskioer dual servo kit is a popular upgrade. Part number 77911-03K replaces the stock servo to give you firmer, more consistent 2nd gear shifts. It's made from billet aluminum, so it's strong and durable. The kit includes the 2nd gear piston, separator, apply pin, D-rings, and O-rings – everything you need for installation. It fits a range of vehicles from GMC, Chevy, Oldsmobile, and others from 1982-up. Why upgrade? It can reduce slippage, improve shift feel, and increase transmission reliability, especially if you tow, race, or just want smoother performance. The dual servo design enhances holding power, so 2nd gear engages more positively. It's a bolt-on mod that many DIYers and shops recommend for these transmissions. Just make sure you're comfortable working on transmissions or have a mechanic install it. A solid, affordable way to get better performance out of your 4L60E!
