Dual Range +05 Obk

[Danny89]

So, I found out that EU Spec 4th Gen OBK's and Foresters are equipped with the infamous dual range manual trans when behind the N/A 2.5. It is not an option in the US Spec car as the lever deletes a cup holder. From what I can tell, and from my experience with old School Ru's, upgrading our 4th Gen Obks with low range should be a fairly simple exercise.

I'm assuming the cases are of shared cast between the EU and US Spec cars and that to make the US Spec trans D/R, swapping the input shaft, installing the planetary reduction carrier and fork, drilling or removing the plug for the fork shaft through the case, hanging the linkage and replacing the interior trim would be all that it would take.

I realize that this is a 1%'er project (meaning 1% of us will actually do this) but I'm having a problem with verifying the case construction and parts list and cost. I've asked SOA, but you can guess how that went.... I did contact a dealer in the UK, but aside from the miserable exchange rate, they too we're less than helpful.

So, perhaps Australia. I found a site in AUS that sells LOWER ratio kits for cars already equipped with the D/R to the tune of $1500.00 AUS not including the planetary, fork, linkage or trim.... So, there's that. I tried salvage yards across the EU, but there just isn't anything listed for even a whole trans...

 

So, I'm here. Any ideas fellas? I see there was some discussion concerning this awhile back, but that was about it. Any word on the street?

 

and yes, I need the Dual Range. Some of you know what I mean.

 

DB.

[Numbchux]

I'm not exactly sure if I'm understanding you completely, but I'll say this. the tranny cases are NOT the same. the bearings that the input shaft ride on are substantially larger. AND there's a "hole" (a little more than just a hole.....but you get the picture) for the low range shift linkage.

 

 

while it is possible to assemble an EJ D/R trans, really the only reason to do it is to swap in EA parts (low range gears....locking center diff). if you're content with EJ ratios and an EJ LSD center diff, just buy the whole trans from overseas and be done with it.

 

 

also, even a heavily modified gearbox isn't going to get you much of a gearing advantage. if you really NEED low range. nothing made by subaru is going to help you.