Complete underbody assembly

Complete underbody assembly
This is commonly called the floor pan assembly, and is usually composed of several smaller panels welded together to form a single floor unit. All floor panels are reinforced on the underside by stiffening members or cross members. Most floor pans are irregular in shape for several reasons. They are formed with indentations or heavily swaged areas to strengthen the floor sections between the cross members, and foot room for the passengers is often provided by these recessed areas in the floor. Figure 1.46 shows a complete underbody assembly.

Figure 1.46 Main floor assemblies and boot floor assemblies (Proton)
1 Reinf. parking brake lever
2 Crossmember assy backbone
3 Reinf. assy backbone
4 Bracket A-Frame LH
5 Bracket A-Frame RH
6 Pan front floor
7 Crossmember assy front floor front RH
8 Crossmember assy front floor rear RH
9 Crossmember assy front floor rear LH
10 Crossmember assy front floor front LH
11 Reinf. seat belt side LH/RH
12 Bracket anti zipper
13 Sill front floor side inner LH/RH
14 Reinf. sidemember front floor LH/RH
15 Sidemember front floor LH/RH
NOTE:
A large reinforcement has been added to the front floor backbone (Reinforcement assy backbone), and this is
coupled with the side sill, sidemember and crossmember to provide increased rigidity to the total floor.