Direct clutch is used in reverse and 5th/6th. If it shifts ok from 3-5 then you likey have a piston seal leak on reverse clutch. Pull the pan and see how things look. If the trans is making metal then your chances of contaminating the solenoid is high. If the pan is clean and magnet isn’t overloaded then I wouldn’t worry about changing it if you have to pull the trans after and re use that solenoid.
If you’re line pressures don’t improve with new solenoid then I would pull the trans and go through it.
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07 CCSB 4x4 Lariat FX4 Bronze Metallic/Sage
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