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Hello to everyone, I have some questions about my clutch and tyres.
My Defender is a 110 300 TDI Two Door Hardtop RHD MY 1997.
Would appreciate every sincere answer especially from those from you with personal experience.

A) Clutch - Unfortunately mine is DAMAGED:

1) Are the clutch cover assembly, clutch pressure plate, clutch plate, clutch central bearing, the flywheel and the clutch release fork the same on all Defenders, Discoveries and Range Rover Classics fitted with a 300 TDI engine?*
Should I modify something in order the new clutch to be installed?
I am asking this because the previous owner has mounted a 300 TDI engine from a Discovery with code 21L and number* 61023A whereas the original 300 TDI Defender engine was with code 23L.
My Gearbox is R380 with number 56A.0529573J.

2) I use my Defender for expedition offroad fully loaded to its capacity maximum (as prescribed) from 3050 kg.
Taking this in mind what would you recommend me to buy:
a) a Genuine Land Rover Heavy Duty clutch kit and clutch parts or
b) some other brand ?*
If the last which brands offering Heavy Duty Clutch Kit would you recommend from your own experience?*
Are there* brands with better quality than the Genuine Land Rover Heavy Duty one?
Which brands should I definitely avoid because of poor quality?

3) Are there any other parts that I am obliged to replace when changing the clutch - bearings, bushes, bolts, clips, clutch release fork?

4)There are two types of offered Genuine Land Rover clutch plates:
a) 235 mm NORMAL DUTY
b) 245mm HEAVY DUTY
What is the difference between them in terms of vehicle driveability, reliability, torque deliverance (transmission) from engine to gearbox and resistance to wear?

B) Steering Swivels
If one of them gets damaged / broken could it be replaced for its own, or it is obligatory both to be replaced in order to be the same?

C) Tyres
My Defender was sold from the previous owner with 4 numbers of 285/75 R16 General Grabber AT1 tyres fitted with 30 mm wheelspacers.
The suspension and axle components are factory standard.*
1)Do the size and weight of those 4 tyres cause excessive load and premature wear of propeller and drive shafts, hub wheel bearings, steering swivels and the bearings of the steering swivels?
When I am fully loaded and in offroad environment is there a danger of premature breakage of all components mentioned above while climbing a steep hill or driving through very deep mud and/ or snow with fitted snowchains on every wheel.

2) I am considering to buy offroad tyres in the future.Which tyres in general give the Defender a better passability (negotiability) when offroad - thin (skinny) or wide (fat) ones?Which one do you recommend from your own experience and why?

Thank you in advance for your answers.
 
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