Originally posted by Luc
Yes, that is normal, I have one on my '93 Camry. It is called a LSPV spring, not sure what the acronym stands for.

Originally posted by skperformance
wow what is that
i know i don't have one on my 94
anyone got an answer?

Load -Sensing Proportioning Valve.

WHAT
A Load Sensing Proportioning Valve is used in the rear brake system to control the brake pressure to the rear wheels depending on vehicle load. The LSPV offers braking stability when the vehicle is lightly loaded and increases braking from the rear in proportion to added load

HOW
The LSPV is located under the floor of the vehicle, near the rear suspension. The pressure of the brake fluid to the rear brakes is controlled by a lever actuated valve. A sensor spring connects the lever to the rear stabilizer. The twisting of the stabilizer bar when vehicle load increases, causes the sensor spring to stretch, which increases its tension. This increased force is applied to the LSPV lever, which acts on a plunger to enlarge an orifice in the valve. This allows additional fluid pressure to flow to the rear brakes in direct proportion to the load being carried.

WHY
By the use of a load sensing proportioning valve in this way, braking stability is maintained at the rear irrespective of the varying loads which may carried in the vehicle.

http://www.honda.co.nz/h.nsf/t/t_lspv.html