welded differental

[JG12gauge]

[ame]https://www.youtube.com/watch?v=bnLoNC5jRlc&feature=related[/ame]
After seeing this video one of you made I got sold on the idea of a welded differental but have no idea where to start. My first queston is can I just take the the differental from a stock brumby and get the spider gear welded, If I only get the rear differental welded does that mean I can still have decent road handling in 2wd and just use 4wd for off road. Also what is a fair price to get it welded. Please bear with me if im saying something that dont make sense. Trannys and diffs were always a little taboo for me.
cheers Jeremy

 

[Kevin]

I've known a couple of folks who have welded the diff in Brumbys and being FWD when not in 4WD allows this. I've also heard that the rear doesn't corner too well once welded - because both rear wheels travel at the same speed even when free-wheeling in FWD. No idea how much it would cost. Would I recommend it - probably not.

 

[JG12gauge]

Im not incredibly concerned about handling since my brumby is almost always used for an off road vehicle so it would probly work good for me. ill just have to see how much it will cost.

 

[El_Freddo]

Dunno about cost, but I've done mine. I'm not running with it just yet until I'm sorted with my lift etc.

Its as easy as pulling the diff part, unbolt the stub axles (8mm long socket will do the work on the torx bolt), stub axle slides out. The rear plate needs to come off as do the side plates. Mark the side plates Left and Right OR Driver's Passenger's. Keep the shims where they are on these side plates.

Remove the carrier (diff centre and crown wheel). Degrease to get rid of all the diff oil. If you've got a mate who can weld get them to amp up the welder and go hacks at the spider gears where ever they touch some other metal object. I've seen others weld in oversided bolts to literally fill in the space that the spider gears live in. Not necessary. Try not to get any splatter on the bearings, or get them too hot.

Clean up all splatter. Put diff back together. Add 800mL diff oil.

Shave 5/7mm off the end of the stub axles. This allows you to remove a drive shaft for on road driving so handling isn't effected on the blacktop.

When 4wd'n point and shoot! Carry spare rear shafts and stub axles. I've not broken any of them but I've seen afew around that have...

Cheers

Bennie

 

[JG12gauge]

Thanks for the help Bennie. Im lucky enough to know an awesome welder who made the frame for my brumby buggy so I think ill go see him pretty soon. Right now I havent even bought a new transfer case yet but im looking at a pretty nice one in a couple days so ill see how that goes.

 

[El_Freddo]

you won't get a new transfer case - the subi 4wd gearbox is not a conventional 4wd gearbox. The "transfer" gears are on the gearbox input shaft above the front diff, they only make it easier for the engine to do its work and not the engine and gears as a conventional 4wd gearbox does.

Then there's the rear wheel drive engaging gears. Maybe this is the part that needs fixing? If you could get an L series 5 spd you could shove that in too. You'll need a new gearbox crossmember and to extend the tailshaft. Use the shifter linkages that come with the gearbox

Cheers

Bennie

 

[yarney]

What i have heard about welded diffs

1 yes it will get you a lot of places an open one won't

2 They are no good on the black stuff so the best thing is to take out one rear shaft when you drive on the bitumen. The down side is you have to get under the car after a day of wheeling with plenty of mud and take it out again not good

3 You will break something in the drive line sooner or later even go as far as snapping a drive shaft it two you could be in the middle of nowhere when it happens

If you take apart the diff yourself and get someone to weld it it won't cost much

It's something i have thought of doing but weight up the pro's and cons and didn't do it, I have been stuck in the middle of nowhere with a broken gearbox not been able to move, It cost me a lot of money to get the car home again

Jan

 

[Barry]

... It's something i have thought of doing but weight up the pro's and cons and didn't do it, I have been stuck in the middle of nowhere with a broken gearbox not been able to move, It cost me a lot of money to get the car home again

Jan

Isn't that what RACV (or equivalent) 'Total Care' is for?

 

[yarney]

Isn't that what RACV (or equivalent) 'Total Care' is for?

The car wasn't on a public road and my cover was only for 10km towing and on a public road

I now have ultra cover

I was 150km from home there was a lot more to the story

Jan

 

[Barry]

Yep,

Top level of 'roadside assistance' is the cheapest possible insurance!

 

[El_Freddo]

What i have heard about welded diffs

1 yes it will get you a lot of places an open one won't

2 They are no good on the black stuff so the best thing is to take out one rear shaft when you drive on the bitumen. The down side is you have to get under the car after a day of wheeling with plenty of mud and take it out again not good

3 You will break something in the drive line sooner or later even go as far as snapping a drive shaft it two you could be in the middle of nowhere when it happens

If you take apart the diff yourself and get someone to weld it it won't cost much

It's something i have thought of doing but weight up the pro's and cons and didn't do it, I have been stuck in the middle of nowhere with a broken gearbox not been able to move, It cost me a lot of money to get the car home again

I agree with the drive shaft thing - having to put it in and take it out was a pain in the arse - I love my 4wd on the fly but that was something to get used to.

Carry spare drive shafts, I did. I didn't get to the point of breaking anything while on road or in the field, but I have seen footage of some nasty breaks!

Phizina has been driving his MY with a welded rear for a while now, he hasn't taken the driveshafts out just to prove a point. I think its getting a bit sloppy in the rear now but he's yet to break something. I've seen him first hand do some crazy stuff in that little subi!

Yarney, I don't think it would be wise to do this to an AWD vehicle as you won't be able to return the car to "factory handling" as you need to have both rear shafts in at all times. 3 wheel drive is VERY weird to use...

The car wasn't on a public road and my cover was only for 10km towing and on a public road

That sucks! Public road... I've never thought about that! I've got total care and have so far been towed from Tininara, SA and Barry's Reef near Trentham in Vic (on Good Friday no less ). So worth the nearly $200 a year - and it 'follows' you to mate's cars etc while keeping your car covered too

Cheers

Bennie

 

[yarney]

Yarney, I don't think it would be wise to do this to an AWD vehicle as you won't be able to return the car to "factory handling" as you need to have both rear shafts in at all times. 3 wheel drive is VERY weird to use...

Hi Bennie
I meant when i had the L-series i an happy with where the liberty goes with an open diff

Jan

 

[El_Freddo]

Hi Bennie
I meant when i had the L-series i an happy with where the liberty goes with an open diff

That makes sense!

Cheers

Bennie