CHASSIS MODIFICATIONS 2-22 E URO C ARGO E URO 4 - 5 2.8.8 Modifying the Drive Line Following the modification of the wheelbase, work on the transmission, as a general rule, is carried out on the basis of the transmission of a similar vehicle with approximately the same wheelbase. The maximum value of the inclinations of the propeller shafts used for standard production vehicles is to be retained. This rule must also be applied when any modifications to the suspension and rear drive axles are made. In cases of particular difficulty, the assistance of the Company may be sought. A diagram giving the length and inclination of the proposed new transmission must accompany the request.
The technical instructions given in the drive line manufacturer’s manuals can be used to make and install the shafts. The purpose of the specifications contained in this manual is to ensure the proper functioning of the transmission, to limit its noise and to avoid the build-up of stress transmitted from the engine assembly. In no way does this diminish the responsibility of the bodybuilder for the work he has completed.
2.8.8.1 Maximum permitted lengths The maximum working lengths possible, both for the intermediate sections Lz and the sliding ones LG (see Figure 2.7), can be determined based on the external diameter of the tube already existing on the vehicle and the maximum working revolutions (see formula), and they are indicated in Table 2.13. For the propeller shaft length specified in Table 2.13, when the tube diameter is not sufficient, a new shaft section with the same characteristics as the existing shafts must be used. As an alternative, in some cases the transmission shaft with a larger diameter tube can be used.
The tube diameter required can be determined in compliance with the required length and the maximum rotational speed, directly from Table 2.13. Figure 2.7 Total length Total length Total length 91505 LZ Intermediate sections LG Sliding sections Base - July 2006 Revi - June 2007 Print 603.93.431