Outer Limits 4x4 Board

Can anybody tell me what transfer cases where in the 60 series and what the diference between them where, I have heard that there where Slit ones and something else, What is the diference between split and others.

thanks

Byron

Bazz107 wrote:Can anybody tell me what transfer cases where in the 60 series and what the diference between them where, I have heard that there where Slit ones and something else, What is the diference between split and others.

thanks

Byron

all 60 series have the split type transfer case, with some year variations. early (to about 1984?) have a 34mm idler shaft, later have a 38mm idler shaft. this is measureable where the idler shaft protrudes from the rear of the case. there are three ratios available, 1.996:1, 2.29:1, 2.488:1 although 60 series tend mostly to have 1.996:1 it is rumoured that some auto have the 2.488. Most are lubricated by gear oil (80W +) but some transfers behind the automatic transmission are lubricated by ATF and have needle roller bearings in the high and low range output gears. the 2.29 gears are only found in Bunderas I think.

In 60 series the transfer is bolted to the back of a H42 or H55F gearbox which are 4 and 5 speed respectively

earlier (4x series, pre 1977) landcruisers have a one piece transfer case which is substantially weaker than the split type.


cheers

Brian

There are also vacuum shifted transfers (2WD - 4WD) and mechanical shifted ones. The vacuum shifted mechanims often plug up. These are identified by a large diaphragm on the front output housing.

My theory, but I think those with 4.11 diff ratios get 1.99 low range transfers and the 3.70 diffs get the 2.29. Do the auto trannies always get the 2.48, Brian?

Dave

Thanks for that Brian

Do you know if it is possible to find out what 60's had lower ratios and if they will go in to other transfers, I have HJ60 5 speed and am looking for better Ratios without going to crawler gears.

thanks

dumbdunce wrote:

Bazz107 wrote:
........earlier (4x series, pre 1977) landcruisers have a one piece transfer case which is substantially weaker than the split type.


cheers

Brian

Welllllll, i used to have a one peice on the back of my 78 bj 40....what makes them weaker? i would of though they would of been stronger.....

(BTW, not having a go at you Brian, just stating my question and i now run 60 series gear in my 40 )

Reddo wrote:

dumbdunce wrote:........earlier (4x series, pre 1977) landcruisers have a one piece transfer case which is substantially weaker than the split type.


cheers

Brian

Welllllll, i used to have a one peice on the back of my 78 bj 40....what makes them weaker? i would of though they would of been stronger.....

(BTW, not having a go at you Brian, just stating my question and i now run 60 series gear in my 40 )

fair question

they run smaller gears (narrower and smaller diameter), and smaller bearings and shafts, especially the idler shaft. the one piece case is prone to cracking and is known to break in half especially when treated to V8 power. They do have some advantages over the later split type case - for example you can take them off the gearbox without pulling them to bits (patrol/hilux style) so they are a lot easier to trail swap when you do break them.

cheers