Sonnax highlights its O-ringed end plug kit for GM 8L90 and 8L45 transmissions.
According to the company, wear on various OE end plugs in GM 8L45 and 8L90 transmissions allows critical leakage at the following circuits, default override, lube flow regulation and converter lockup/release. These pressure losses impair control of clutches, effect lube flow regulation and critical converter control.
The company says this end plug kit (154740-17K) can resolve these issues, restore hydraulic integrity and renew shift operation. The end plug kit includes three plugs and four o-rings.