Thread: High Speed Series Transfer Case

G'day
I've put a HRTC in Sandie my 1973 SIII based on research regarding lower engine revs and higher top speeds(!), particularly important as I've got a Holden 3.3 which is fairly badly mis-matched to the standard gearbox/transfer case. They don't like long periods of high revs and you'll get sustained high engine revs "cruising" your landie. Well, 80k's plus anyway!

I bought the transfer case kit and was going to fit it up myself. I've done most of the re-build on Sandie myself and have little fear in brakes, engines, clutch etc, but the HRTC was too hard. You'll need good gearbox experience, plus the ability to move a shaft concentrically about 3mm to accomodate the new high range gear. Beyond my equipement (and ticker) levels.

Took it Land Vehicle Spares at Silverdale outside Sydney and George and Brian did a great job at a very reasonable price. I say great as they did lots of little extra stuff and provided plenty of advice on other issues. I still haven't driven Sandie but the body is just about back on, and the big day is almost in sight!

Good luck with it

Richard

I've got an overdrive to fit to grover (I haven't done ot yet :wink: ), but that gets me an increase of about 27% more speed at the same RPM.

From memory the HSTC soed about the same, but is stronger. By all accounts the lowwere gears aren't changed much, but the higher ones are.

An overdrive at least retains the original gears, and is really easy to install. But if you have the cash a HSTC is a good invenstment.

I'm thinking maybe i should take it to someone in Brisbane.
Anyone know a good crew that can do it, and has a good rep :?:
Only just moved to Brissy so the only people i know that handle a lot of british cars are some guys out at Chermside. :?

British off road are good, http://www.britishoffroad.com/, but I don't know if they are in your area.

Supertruck got a HSTC in Aug '00. We sourced it from 4WD in Melbourne (03 98900500 - Steve). Gearset, rebuilt tfr case with rebore intermediate shaft positions, cost about $800. On top of that, rebuilt the rest of the tfr case (dog clutch, shims, seals and bearings). One day job.

Outcome? 186 runs at about 2900 about 100km/hr. 1st a bit steep, but bearable. Low range - no noticeable change.

In your area, is there a LR wrecker n Gympie? I seem to remember he dealt with these beasties, too.

Else, perhaps you could change the diff centres for 3.54's. Too much information?

Cheers

Pierre

I got mine from those guys as well. Funny story about it. See Yarns and Tales

Yeah i was thinking about doing the diffs instead of the Transfer case, but i have heard that it drops the revs on all gears instead of just the high speed gears.

Has anyone ever considered doing both transfer and diffs???? This would probably be going too far but would be interesting to see what it does. :?

I can recommend a mob called Techno British at Moorooka. They used to do a lot of stuff on my old girl and they really know their way around series landys. They all drive them aswell. Also theres a landy parts place at Archerfield called FWD, not to be confused with the Southern mob. These guys sell some rare stuff at good prices.
cheers
Mick