Fully Floating Rear Axle Conversion kit # 276254
This kit # 276254 was introduced in May 1957 and consisted of axles and hub assemblies.
"The latest type reinforced axle case must be used on all 86, 88, 107 basic, early 107 Station Wagon and early 109 Land Rovers when the fully floating rear axle shafts are fitted.
The reinforced rear axle case, which can be identified by means of the channel welded under the long side of the casing, is NOT PART OF THE KIT AND MUST be ordered separately"
Source: Item 305, Rover Service Newsletter No 79, May 1957.
This might explain it.
Bob
Reinforced Rear Axle casing
CC,
Here's your answer:
Source: Rover Service Newsletter No 68 June 1956
"MODELS: 1956-7 Land Rover 109 Basic and 107 Station Wagon
MODIFICATION: Reinforced casing
PART NUMBERS: 109 Models
Rear Axle assembly 272198
Rear axle casing 272197
107 Station Wagon
Rear axle assembly 272196
Rear axle casing 272194
COMMENCING NUMBERS:
109 Models 121700835 onwards
107 Station Wagon 131700079
REMARKS: The rear axle casing on the 109 and 107 Station Wagon has been reinforced by means of a channel section welded under the long side of the axle casing. Early and late type axle assemblies and axle casings are interchangeable.
Service rear replacements for all Land Rover 109 models, all 107 models with 11 in. brakes and the 107 Station Wagon will eventually be of the reinforced type."
Pre-dates the fully floating axle introduction. Will have a look for the Newsletter introducing the fully floating axles tomorrow - raining outside :o and it's in the garage.:)
The Station Wagon rear casing is different in that the spring perches are on outriggers rather than being directly under the chassis rails.
Bob