Thread: LT95 Hi Speed Gears - Tutorial

Originally Posted by garrycol

I have to put some hi speed gears into my LT95 transfer case. Does anyone have a link to a tutorial on how this is done. Likewise when pulling the old gears out and putting the new ones in is there anything else I should do as a precaution at the same time.

Thanks

Garry

Nothing much to it Garry, some basics are new bearings/shims,thrust washers/o rings. Get the endfloat out of the intermediate shaft and loctite the small gear on the centre diff splines. Check the fork adjustment for the intermediate shaft input gear as well as checking the centre diff case bolts are loctited. Good idea to check the centre diff preload before the intermediate shaft is fitted and adjust if necessary. Forgot to mention earlier, lock the front drive actuator before you remove the centre diff, this will keep the locking dog in place while the diff is out. New rear output seal and you are a goer.

I have never done it, but the 101 is the best for in vehicle access.
You will have to drop the PTO drive off the bottom of the transfercase and remove the top access plate.
With that done it should be straight forward .
Would be a great time to up grade to tapper roller bearings?????????
I am going to have to do this job one day soon as my high range splines are a bit worn.
I will be watching your posts with interest.

Gary,
There are a couple of good tutorials.

Here's a general one from the UK:
http://www.stage1v8.org.uk/manuals/T..._Gear_Swap.pdf

And a more detailed overhaul tutorial by SteveG
http://www.aulro.com/afvb/projects-t...beginners.html

Cheers
Pete

Originally Posted by 101 Ron

I will be watching your posts with interest.

Not doing it just yet - just getting ready - seems I will need a lot more parts than I was expecting.

Question.... Why the lean to higher ratio transfer gears over 4.7:1 diffs? Is the main reason because you retain the seriously low low ratio? The only reason I ask is, the props are already spinning around faster than normal, and will get a bit faster again.... (If anyone says they won't they're tellin porkies.. If I had higher ratio transfer gears I'd drive faster too, and not just stay at the original speed but with lower revs!!)...

Yes maintain low range performance - also a lot cheaper.

The props do not turn faster for a given speed - it is impossible and like fitting an overdrive, a standard engine is unlikely to produce a higher speed than original gearing - just doesn't have the puff. My 101 with O/d is about 5kph slower at top speed than with standard gearing but will cruise at the same speed with lower revs.

Bigger engine then it all changes - yes prop will turn faster because you able to pull a higher speeds - then higher dif ratios might be a consideration.

Garry

Having driven your 101 and then mine.........the total change and effect was not very big.
The overdrive is the game changer gearing wise.