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Post 31
December 2015

Mainshaft Assembly - Rear Half

land rover series 3 mainshaft bush endplay

Drop on a new synchro cone.

land rover series 3 mainshaft gear endplay

Next a new 1st/2nd gear synchro unit. The synchro teeth on my original were badly worn. If you don’t plan to replace this, be careful dismantling it. This is the unit with three steel balls held in by firm springs, which are released all across the workshop when the outer gear is slid off the inner gear. They are tiny. I lost one somewhere in the next room. At least thats where the pinging sound came from.

land rover series 3 mainshaft bush endplay

And then the opposite synchro cone.

land rover series 3 mainshaft gear endplay

A bronze bush.

land rover series 3 mainshaft bush endplay

The thrust washer sits against the shoulder of the splines on the mainshaft. Checking the end float against the bush, which will effectively be the end float for 1st gear. Though this needs checking against the gear as well.

land rover series 3 mainshaft gear endplay

1st gear in place. And that is the mainshaft complete. The thrust washer buts up against the roller bearing pressed into the rear of the gearbox casing.

land rover series 3 mainshaft gear endplay

New first gear compared the the old gear. I replaced pretty much every gear that has synchro teeth. I purchased Britpart for all of the new gears. Probably not as good as purchasing original OEM, but about a tenth the cost. If I insisted on using only original OEM gears, this rebuild would not be happening.