Jacking under the diff.

Is this allowed????

Seen it done at my local tyre place, and told by someone at the pay&play this weekend that its OK, but just doesn't sit right with me!!

Any thoughts?????

Steve_R1979 said:

Is this allowed????

Seen it done at my local tyre place, and told by someone at the pay&play this weekend that its OK, but just doesn't sit right with me!!

Any thoughts?????

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Prefer to jack under the axle meself
Dunno why you'd need to jack under the Diff

Diff was not intended as a jacking point to take a couple of tons. Ive used it on cars and probably wont hurt it but its really a no no.

Rave for the Classic says it's OK.

Personally I would avoid it wherever possible.

Pete

Jacking under the diff is no problem at all unless you use one of the twopenny jacks without a proper shaped pad that can slip off.

They are mostly not designed to allow jacking under the diff, just look at the leverages involved with the diff as the fulcrum. Some might stand it but I personally would never do it or allow a tyre place to do it. If the diff housing does distort, you may not find out until it's too late to go back and claim.

Datatek said:

They are mostly not designed to allow jacking under the diff, just look at the leverages involved with the diff as the fulcrum. Some might stand it but I personally would never do it or allow a tyre place to do it. If the diff housing does distort, you may not find out until it's too late to go back and claim.

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Keith there is no problem jacking under the diff. Providing you use a proper jack and not one from Halfords or Machine mart with small pads that can slip off. You need one with a large cupped pad like a Bradbury or Epco. The standard place to jack any rear wheel drive vehicle is under the diff, i have done it on cars and commercials for fifty years and never bent a diff casing yet.

ive done it when needed but it aint ideal.Tire place probably shouldnt be doing it.

The only problem jacking a Land rover up on the diff casing is that it is offset and the axle does not go up flat. You have to lift it high to get a stand under one side then lower axle onto stand. Other than that there is not problem, there is no chance whatsoever of denting the diff casing or bending the axle. Old womens talk otherwise.

there is absolutely no problem as wammers said with jacking under diff

Jacking off near a school however, will land you in a lot of trouble.

storm99 said:

Jacking off near a school however, will land you in a lot of trouble.

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Yeah true, you can say a lot of bad things about peadophiles, but at least they drive slowly past schools.

Interesting topic.

I nearly always jack the axle under the radius arm on front and trailing arm at rear but I often think to myself that the bushings were never designed for that weight.

On a side note when Which car tested the original Rangie back in 1972 they bent the axles through heavy off road use, so bending axles on a Rangie is not impossible.

bushes obviously can take the weight as they do anyhow + forces of driving and cornerning .the cases arent that easy to bend

SpudH said:

Interesting topic.

I nearly always jack the axle under the radius arm on front and trailing arm at rear but I often think to myself that the bushings were never designed for that weight.

On a side note when Which car tested the original Rangie back in 1972 they bent the axles through heavy off road use, so bending axles on a Rangie is not impossible.

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It is when you jack it up. Unless the boot is full of bags of cement. I remember years ago a Commer TS3 7ton tipper came in under warranty with a broken spring. It belonged to Wards ship breakers on Preston docks. I put a 5 ton jack under the diff to lift it to put on stands. Could not move it. Tried the 10 ton jack but struggled to make headway. Climbed up and look inside box, it was full of trainlines from top to bottom. It was estimated to have had 15 tons of rail track in it. Needless to say the warranty claim was thrown out. But it didn't bent the axle.

jamesmartin said:

bushes obviously can take the weight as they do anyhow + forces of driving and cornerning .the cases arent that easy to bend

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I'd imagine that if you think that through you'll see that the the bushings never carry the weight of the car. The weight of the car is carried through the springs down to the top of the axle. The radius arms prevent the torque rotating the axle and resist the braking forces.

I'm not saying its not capable of taking the weight, just that it doesn't normally take it.

jacked hgv on diffs for years- trick is large pad

for the weight you are putting on it it is perfectly acceptable to jack from under the diff, you will never be putting more than half the vehicles weight on the case, as said the only problem you will encounter is that the landy will not lift strait.....


i have an old case kicking about in my yard, i might get some stress tests done on it to see how much force it would take to distort it

I find this sort of depraved behaviour quite disgusting. Exactly what people find so stimulating on the underside of a car is quite beyond me- not to mention the obvious dangers of performing such an act in such dangerous circumstances.

Frankly, it would not surprise me one iota to see this sort of depravity at any kwak Fit, sordid bunch if you ask me. Take my advice and keep well away from such places.

kieronf said:

I find this sort of depraved behaviour quite disgusting. Exactly what people find so stimulating on the underside of a car is quite beyond me- not to mention the obvious dangers of performing such an act in such dangerous circumstances.

Frankly, it would not surprise me one iota to see this sort of depravity at any kwak Fit, sordid bunch if you ask me. Take my advice and keep well away from such places.

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Ah'm lost
Is that a reply tae sumbody or what?? Please explain