Thread: It's Alive.

it depends on how you use it, THE 8HA is a tuff bugger and with 24 spliners in it well it'd be damn near indistructable under usual driving loads.

If you go bouncing away at it with the volume turned right the way up to eleven in low first or second and she hops over some rocks while pointing up hill with the rubber down at bugger all psi but enough to prevent rim slip and the tail end grabs a foot full of traction at the same time as the fronts do their impersonation of hot air balloons (always entertaining to watch albeit very short entertainment) then the something is about to have a very very bad hair day..

Im tipping it aint gunna be the front axle, although.... when gravity starts paying attention to the fact that theres a ton odd of landrover thats temporarily decided not to play by the rules and decides to appropriately enforce the regulations its a strong possability I'll get back to that...

So where now the front wheels are waving at the spectators (forgot you needed to do the swivel pin preloads didntcha) and the back wheels are slipping and spinning as they sort of slip and slide into the little dip you were cresting and they grab hold of the rocks and do the seaguls thing claiming mine mine mine mine and grab hold of the rocks (I swear sometimes you can hear them chirping like a pack of fighting birds)

ok so now essentially theres no resistance on the drive line, youve got your foot crushing the louder pedal and the ffood tray is wide open. The little hampsters smell this and go like the clappers in their little cages and start to breath a bit harder trying desperately to get to the food... The magic elf who lives between the hairdriers cocks his ears and they flap in the breeze of the straining rodents so he puts down his tea and crumpets and begins huffing the air at the hampsters to keep them cool so they work harder... as the breeze increases the pixie in charge of the adrenalin kicks in shoots the hampsters full of speed and hey presto what was a nice simple jaunt at 1500 turns a minute is now a mad screaming rush of utter chaos and panic that results in lots and lots of go...

And all that go has to go somewhere so it trys to turn the wheels... that arent touching anything so turn they do and it all gets faster faster always going never knowing......

ITs righ about now that the back wheels get a touch dizzy and grab hold of the planet and moan "make it stop, Im gunna be sick" now when they stop all this wonderfull effort that the hampsters are putting in has to go somewhere... essentially pick a part of your drive line and call it an equals sign. whats on one side must equal whats on the other or the equal sign is going to break....

bye bye rear axle..


Now in all this commotion gravity has decided that the now vertigious front wheels need to be relocated planet side and right now style but theres a problem... remember all that effort that was going to the back wheels the effort that says that the ground under the front wheels should be moving at more or less the same speed as the front wheels are turning... Remeber the broken equals sign? theres all this effort going nowhere through the broken equals sign, but thats ok theres another out let for it on the front.....

care to guess whats going to happen when you stop yeeeha ing around and the lack of accelerative force from the busted back end lets the front come crashing down to get a tyre set full of traction while the little hampsters are still on their adrenaline fueled speed rush.... (assuming the swivel bearings dont decide to go and explore some other part of the axlehousing out of boredem at this point in time)


so keep it simple, dont put such a big fan in front of the hampsters and keep the pixie with the hypo under control and your laughing so long as you keep all the rubber on the road... (or what passes for one)

....geeze Dave, we'll have to add 'poet' to your multitude of talents.......nice post

Dougal,

That is good news about your rangie.

IMHO the weakest part of the drive line is the 2 pinion diff centre.

Once that is fixed, by fitting lockers (4 pinion), the 10 spline axles become the weak link.

Fit after market 24 spline axles, then the crownwheel and pinion .........

.........

Other than my disco, which has after market diff centres and axles, I've moved on from rover drive lines.

I was intending to adapt the LT230 behind the Isuzu in the rangie (by re-splining the input gear, because others were interested in this), but had to change plans because the front extension housing wouldn't clear the side of the MXA-6R gearbox.

John, are you aware of anyone producing a stronger Rover crown wheel and pinion commercially?.

if youve got the sals putting a deflection block in would be the first upgrade....

Ive never killed an 8HA and IVe done some umm less than nice things to them...

Dougal

Members of the Gold Coast Land Rover Club are bringin in 4:1 CWP sets from the States at the moment . These are the h/d spanish sets and are superb quality. $1100 for the f/r set. + freight

You can go as far as pegging your diff centres etc but really it depends on how you drive it.

I run 35" Creepy Crawlers at 6-8 psi with bead locks all Maxi diffs and 4:1 CWP,s.

I have screwed 2 rear tail shafts and broken 1 front outer shaft. Currenly putting in Maxidrive CV strengthening rings and modified outer shafts ( ie maching a groove to act as a shear pin ). Might be a bit over the top but we are taking it to Malaysia next year so need to have reliability.

Justin

ps ours goes very well on 35" tyres, must run it on some standards one day.

Thanks for all the advice guys.

It appears lockers and 24spline axles are the go. They were planned eventually, but it'd even be pushing my luck to run what I've got with more boost and fuel. I've got the turbos, manifold and some profiles for the compound turbo setup. It'll be a long and interesting story. First part is fitting the variable vane turbo as a single.

My offroad driving style is on the sensible side of silly. Just.

Unfortunately stronger crown and pinions are almost all lower geared. I don't want to leave 3.54 for now and keep stock tyre size (within reason) due to legality, garaging and the long onroad trips this vehicle does. If I get worried I'll put in a slipper block.

Now which axles and lockers? A 24spline locker and axles will fit my 10spline hubs and carrier with only minor work (air lines etc)?

Pics of pulling seconds please. Now put on some 35s and repeat......wouldn't those egts melt pistons or somthing?


Dave before you go buyng new diffs, which you will be needing soon.

I'm selling 2 sets of diffs at the moment, 1 pair is out of my buggy, range rover housings with 4.3lsd centers (toyota) high pinion front, jac mac chromolly axles, Haultech heat treated cvs etc etc would almost be a bolt in with minor mods.

The other pair are out of a 2004 Ford F250 superduty, which had a fire in the cab. Dana 60 high pinion front and sterling 10.25 inch rear LSD, 4.1s etc. the front is a LHS pinion, so it needs serious mods to fit, but its possible.

your pick for 2K

I could also help ship either set over the ditch.

Sorry i hope mods dont see this as spam, if so feel free to delete.


Andy