One of the biggest issues we see with old gearboxes is failure due to lack of maintenance. Most people tend to look after their engines well and service them regularly by changing fluids and filter etc. Sadly, they often over look the transmission. A gearbox needs regular maintenance too. With the LT77 you should be looking to change the oil yearly at the very least, maybe more if you are clocking up high miles. The LT77 takes around 2.6 litres
