Thread: LT230 input gear

No, I had not heard of the feed plate untill last night when I was looking through the Ashcroft site.
Wonder if that would be better than drilling.

Pretty sure drilling is the recommended way if you have neither.

What does the gearbox main shaft look like
From memory the input gear is a good bit harder than the mainshaft
It will be the main shaft splines that have worn

Having said that, those internal splines appear to have lubrication and no dry fretting to suggest there is a problem - but check the mainshaft too

s

The seal on the back end of the LT77 looks to be the same as the front of the Tbox on the same shaft.
It looks to have been weeping so perhaps I should replace it.
How does one get it out without getting into the Gbox and removing the shaft?
Drilling holes might get swarf in there.
I will do the T,box seals while its out.

Originally Posted by Judo

Pretty sure drilling is the recommended way if you have neither.

A few of the boys on here have successfully drilled the gear using a cobalt bit and lots of cooling lube (with lube, anything is possible ! )

The factory cross drilled gears do have the splines broached deeper so there is more engagement, but everyone that has drilled their own gear hasn't had any wear issues apparently.

Whats the replacement factory drilled gear worth?

Originally Posted by roverrescue

What does the gearbox main shaft look like
From memory the input gear is a good bit harder than the mainshaft
It will be the main shaft splines that have worn

Having said that, those internal splines appear to have lubrication and no dry fretting to suggest there is a problem - but check the mainshaft too

s

The shaft splines look OK as well, but as this box is out of a V8 auto ,that may have something to do with it. I am swapping it for the buggered box in my TDI.

Woops. The splines are of my LT77 of course. The gear is out of the auto Tbox.

Had a go at drilling. I had a set of "diamond tip" drills I bought years ago at a farmfest. The bloke was drilling old files with them. Never used them till now. Drilled one 7mm hole OK but broke the tip off the drill as it broke through the splines on the next. Did the others with a 6mm.
Hope that will be big enough.

Originally Posted by komaterpillar

Whats the replacement factory drilled gear worth?

Here is an ebay one.

Land Rover Transfer BOX Mainshaft Gear 26 Teeth LT230 Defender Discovery FTC5089 | eBay

Actually the holes look a bit bigger than the ones I drilled.
Never mind , I guess oil will still get in there.