Transmission

Information 

This inspection applies to all vehicles. 

Method of Inspection 

During this inspection, it is important that the vehicle is in neutral gear and the transmission 

brake (if fitted) released. 

1. Examine transmission.  In particular, check for: 

• Missing or loose flange bolts, 
• Cracked or insecure flanges, 
• Wear in shaft bearings, 
• Security of bearing housings, 
• Cracks or fractures in bearing housings, 
• Wear in universal joints, 
• Deterioration of flexible couplings, 
• Distorted, damaged or cracked shafts, 
• Deterioration of bearing housing flexible mountings, 
• Clearance between transmission shafts and adjacent components. 

2. Front Wheel Drive 

For front wheel drive vehicles, check the drive shaft inner and outer universal joint 

couplings and constant velocity joints for:- 

• Wear and security, 
• Damage to flexible rubber or fabric universal couplings, 
• Security and oil contamination of flexing rubber or fabric universal couplings, 
• Condition, presence and security of constant velocity joint gaiters. 

Reason For Rejection

		Reason for Rejection	Deficiency Category
1	a	A loose or missing flange bolt,	MAJOR
	b	A flange cracked, or loose on the transmission shaft,	MAJOR
	c	Excessive wear in a shaft bearing which may cause  the shaft to whirl or vibrate,	MAJOR
	d	A bearing housing insecure to its fixing,	MAJOR
	e	A cracked or fractured bearing housing,	MAJOR
	f	Excessive wear in a universal joint,	MAJOR
	g	Serious deterioration of a transmission shaft flexible coupling,	MAJOR
	h	A damaged, cracked or bent shaft,	MAJOR
	i	Serious deterioration of a flexible mounting of a bearing housing,	MAJOR
	j	Evidence of fouling between any transmission shaft and an adjacent component.	MAJOR
2	a	A drive shaft constant velocity or universal joint coupling excessively worn or insecure,	MAJOR
	b	A flexible rubber or fabric universal coupling unit damaged by severe cracking or breaking up,	MAJOR
	c	A flexible rubber or fabric universal coupling unit excessively softened by oil contamination, or insecure,	MAJOR
	d	A drive shaft constant velocity joint gaiter deteriorated or insecurely mounted.	MAJOR
	e	A drive shaft constant velocity joint gaiter missing or split.	MAJOR