Hi mate. It pretty ez to reach the back of the engine. If my hands can reach the 3 plugs at the back...so can u.. However...u will need 2 short extensions instead of a long one. The long one wunt fit nicely for ur ratchet handle to turn. Btw, instead of the aftermarket NGK plugs, u can get the org platinum bosch plugs at the Toyota Dealerships. Cost only ard $16 each. Cheaper than aftermarkets and orginal moreover. Hope my advice helps...gd luck..