The INTRAspec LT230 is an introduction or entry level transfer box ideal for standard or mildly modified vehicles. We’ve taken all the ‘problem’ parts and re-engineered them addressing the common issues that occur over time with day to day use. It’s ideal for vehicles that are working hard on the road, towing or carried big loads too.
The LT230 is a very capable transfer box but like many things it has its flaws. We’ve added a few simple upgrades that make the INTRAspec the ideal upgrade for any Land Rover that wants an injection of reliability and toughness.
All the gearboxes built at Syncro Gearboxes are completely stripped to a bare gearbox casing so that each and every part can be inspected. Every ‘consumable’ part is discarded and the core parts are retained.
After which the casing along with all relevant parts is dipped into our decarbonising fluid bath to burn off all traces of oil, grease and paint. A choice of specification is decided with the customer and then the gearbox is assembled with all tolerances and torque settings checked and set along the way.
The original helical gears are checked and replaced if required. The gearboxes selector hubs are stripped, the gear selector forks are checked for wear or damage and replaced if necessary. Any parts that are found to be damaged or warn are replaced and the rebuild continues.
We add the following upgrades to the INTRAspec LT230 during the build to gain the reliability and strength required for a lightly modified road vehicle or work horse.
The INTRAspec comes with a full 1 year warranty for piece of mind.
One of the upgrades we offer for the LT230 is a sleeved casing modification. This involves machining one of the intermediate shaft holes out and fitting a steel sleeve into the aluminium casing. This particular hole is notorious for elongating, the aluminium casing is simply not hardwearing enough. When the hole wears it creates a leak but also means that the shaft is never running square and true, which will lead to bearing and gear failures. This modification is a must for any competition truck or overlander. We machine the casing out to accept a new sleeve made from EN24T to ensure it never causes a problem again.
The 300M XPIN is a one piece ultra heavy duty replacement for the 2 diff pins found in the transfer box’s centre diff. The one piece item offers greater strength to the notoriously problematic centre diff. The 300M XPIN gives the centre diff more strength and longevity. If you are doing high or very hard mileage then it makes sense to upgrade your transfer box where possible to reduce failures and ultimately get the most from it. Made from 300M Steel its the strongest differential pin in the world available for the LT230. Our 300M XPIN’s have a solid centre heart and full length pins
300M HD Intermediate Shaft
The 300M HD Intermediate shaft is a direct replacement for the standard item. Its made from ultra strong 300M steel and designed to be as strong as possible. The standard shaft is prone to wearing in a number of places. It can wear at the end of the shaft where is sits in the casing. The casing and shaft can wear together allowing the shaft to move and oil to leak past the O ring. They also wear where the bearings sit, this can lead to major issues as they bearings are able to miss-align. The 300M shaft is the strongest LT230 Intermediate shaft in the world, exclusively to and designed by Syncro Gearboxes
LT230 Serial Numbers
10D = 1.003, 12D = 1.667, 13D = 1.410, 14D = 1.003, 15D = 1.192, 20D = 1.667, 22D = 1.410, 25D = 1.410, 26D = 1.003, 27D = 1.192, 28D = 1.222, 29D = 1.192, 32D = 1.222, 36D = 1.211, 38D = 1.211, 40D = 1.211, 41D= 1.211, 43D = 1.410, 47D = 1.667, 57D = 1.410, 59D = 1.211, 61D = 1.211, 62D = 1.211, 68D = 1.211, 69D = 1.211, 70D = 1.211