overlander said:
Based on your comments, I would suggest sticking with a series III so you have a synchromesh transmission (no double clutch). First invisible upgrade I would think of is replacing the drum brakes with disc.
Double clutching is not all that hard to learn & you don't need to start out in first gear most of the time.
At least 95% of the Series rigs on the road today have drum brakes all around. Contrary to modern thinking they do manage to stop a vehicle. That said I do consider front disc brakes to be a safety upgrade to 109s. This is because the 109 has two forward shoes on each front wheel. This improves forward stopping but at the cost of stopping in the reverse direction. It is VERY hard to hold a 109 stationary in a steep nose up position without front disc brakes.
I went 28 years without front disc brakes & don't consider them to be an essential upgrade.
If there is a single item that NEEDS upgrading and should be done as a matter of course it is upgrading the rear axle to at least 24 spline. The stock 10 spline axles were fine for the lighter weight Series I but are understrength for a heavier 88 and way understrength for a heavier yet 109. The factory went to the much stronger 24 spline Salisbury under the 109 when they introduced the Series III. A Salisbury is a Dana 60 built under license in the UK.
overlander said:
Then get her restored to a mechanically reliable and visible condition, so you can drive her without breaking down, and build the love affair. I would recommend getting to that point first BEFORE major modifications, so you have a good baseline.
I would put getting the vehicle into good mechanically reliable state as #1 priority unless the vehicle was purchased specifically to be heavily modified with custom drive train & maybe suspension.
Stepping your way completely through the factory maintenance schedule would be a good way to get started. Many people buy a Land Rover and immediately start throwing a bunch of off road accessories & modifications on it. Some work, some don't & many may be a total waste of $$$.
UNLESS THE VEHICLE WAS PURCHASED SPECIFICALLY AS A CUSTOM BUILDUP PROJECT, I SUGGEST GETTING TO KNOW A STOCK LR FIRST. LEARN WHAT IT CAN DO BEFORE ASSUMING IT NEEDS ADD ONS TO DO ANYTHING.
These vehicles can do a lot in factory trim without add ons. Learn the vehicle limits, THEN decide what if any of the limits you wish to exceed. Then address those specific limits that you wish to extend.
Never underestimate where an experienced Series Land Rover driver can take a stock Series Land Rover.