Lifted truck clunks/vibrates on reverse

Hey there. I bought a used 2008 single cab with 81K miles after I sold my 2012 PreRunner DC. The truck is lifted with the following below. When going on a reverse after parked, the truck clunks/vibrates on the driver front side for a split second. Seeking advice to chase the issue. I have lowered cars with coils & coilovers myself but this is my first time with lifted trucks.

Previous owner lifted the car and owned it a little over 2 years.

Falken Wild Peak A/T 02 - LT245/75R16, Rock Racing Wheels, 3"In Rancho lift

Thanks for reading..

 

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