English to Spanish Tech/Engineering Automotive / Cars & Trucks vintage formula 1 - Lotus

I am urgently in need of the Spanish translation of several terms describing components of the front and rear suspension of the Formula 1 classic Lotus Climax Type 25. The problem is the following: I was asked to translate the terms but the client did not specify that he wanted them translated to (Castilian) Spanish and I - always having worked into German with this particular client - assumed it was to be into German. He only told me today and the product is supposed to go to the printing press...tomorrow. So I am a bit in the weeds...especially since I would never have accepted the translation into Spanish.

I included my German translation which might be of help to those who understand German. The German translation was okayed by the German branch of Classic Driver which specializes in vintage cars.

FRONT SUSPENSION
DE -> VORDERE AUFHÄNGUNG
ES -> SUSPENSIÓN DELANTERA

b - lower wishbone
DE -> unterer Querlenker
ES -> ???

Pictures:
http://www.ultimatecarpage.com/car/267/Lotus-25-Climax.html