Axle upgrade ideas

[Mercedesrover]

You'd better have a pretty good plant to pull 4:10s in a 109.

[yorker]

Just to give you some idea. The Series High range is 1.15:1 not 1:1 like most US transfer cases so when you figure out the effective R&P ratios with a number of different combinations here is what you get:


Standard high range1.15*R&P 4.7= 5.4
"" " " 1.15*R&P 4.10= 4.7


High Ratio T Case .87*R&P 4.7=4.09
" " " " .87*R&P 4.1= 3.57

So while you'll have higher gearing it won't be as bad as running around with a Ashcroft high ratio transfer case and 4.7 Diffs.

A strong 2.25 should be able to deal with it just fine, otherwise you can get plenty of other gear combinations for the Toyota axles- no shortage there.

[CliftonRover]

I am putting 96 disco axles under my 109, I got the axles for free, so I figured the conversion to disc brakes was worth it. I wil run the 3.54's for a while, they work fine with my 200 tdi and hi ratio transfer case.

[yorker]

I am putting 96 disco axles under my 109, I got the axles for free, so I figured the conversion to disc brakes was worth it. I wil run the 3.54's for a while, they work fine with my 200 tdi and hi ratio transfer case.

what are you doing for the steering setup?

[daveb]

clifton.

good luck with that. your overall ratio with the ashcroft box and the 4.7 diffs should be about right. The 3.5 diffs will probably make it too high.

I am putting 96 disco axles under my 109, I got the axles for free, so I figured the conversion to disc brakes was worth it. I wil run the 3.54's for a while, they work fine with my 200 tdi and hi ratio transfer case.