Ok so when I take my 82 hatch out in the mountains and do a lot of hill climbing in low rang it really stars whining. Now I know the gears for low range are high in the front of the trans so I figure they are starved of oil and therefore start whining. Now I curious if any body has came up with a solution to this problem like some kind of external oil pump or something. Or is a 5 speed low range trans a better off road trans?

Yep it's been done a few times over here.  This is my dual range EJ cased L series AWD box with the low range oil feeders:

 

 

The oil pickup comes from the rear housing where there's a redundant switch (single wire hanging out) - perfect for oil collection on hill climbs.  This is the switch bolt in the pic where the oil pickup comes from.  I don't have an image of my oil pick up line or the pump (that I can find yet):

 

 

You can just make out the barb fitted for the oil pick up in this pic:

 

 

The pump I use is not ideal at the moment - just a jiggler fuel pump that's found in any MY or L series carb'd version.  I only use it when the gearbox is up to temp.  I need to get a brass geared unit some day...

 

Main aim of this mod is not to lubricate as such, but to reduce the heat in the gears with lubrication as a bonus

 

If you have a whine this may reduce it a bit, but it also may not as the damage is probably done already but it'll reduce any further heat related damage to the gears and that's a good thing.  Personally I'd do this to the L series 5 speed box and leave the 4spd alone.  Drop a front LSD in there while you've got the box out

 

Cheers

Bennie

 

PS:  Welcome to the forum

Edited January 27, 20188 yr by el_freddo

Ok. Thanks for the info

Other trick is to slightly overfill the gearbox oil if you don't want to split the case and go through this much work.

 

Not as effective but may help - or show up some new oil leaks.

 

Cheers

 

Bennie

I think I will defiantly take the time to do the modification. You don't have a certain babe style pump in mind you were gonna use? I've thought about a Holley fuel pump or something but idk if it would just burn it up with the thick oil.

  A little Low range whine is normal - having owned 5 different D/R Subarus over 26 years

see signiture below.

but agree if pulling acute angles -may need a little  more oil in gearbox.

Edited January 30, 20188 yr by subnz

Yeah i was experiencing a lot of whine. This wasn't normal by any means. I was climbing we pretty steep hills. Lol I got a lot of dirty looks from people on their utv's when I was on the trails.

Something like this is what I need:

 

https://www.ebay.com/itm/NEW-Electric-Turbo-Oil-Scavenge-Pump-12v-DC-Scavenger-Twin-Turbo-Return-Line/151065464535?epid=1158587890&hash=item232c340ed7:g:FsgAAOSwwpdW2QLo&vxp=mtr

 

Not the exact one I had in mind but it’d do the job. Hooked into a switch you only use it when climbing

 

Cheers

 

Bennie

my 5 speed DR has whined pretty loud on several long uphill grades. I over filled it with about 1/2 pint of Lucas oil. It still has normal gear whine but it isn't anything like it has been.