Outer Limits 4x4 Board

OK, so I jumped a large sand dune and bent the diff. Nissan patrol LWB landed full on the front passenger wheel at about 70-80kph from a fair height.
Had the diff taken out and straightened by a professional, but it appears that the front passenger wheel is back about 20mm closer to the passenger door/mudflap.
The mudflap is not pushed forward so it looks like something else is bent.
I don't think the body slid forward on the mounts.
Any hints on what bends next and some clues on where to measure etc.
CJ

What connects the diff to the chassis?

Control arms of course?

Check them they may be bent

do you mean that it is 20mm closer than the other side? or are both sides 20mm back?

check the radius arm mount on the chassis hasn't been obliterated. even if the bushing has completely collapsed, that alone would get you close to 20mm. it would clunk and bang and carry on when driving if it is that though.

the radius arm mounts on the axle housing were all still in good nick when it came out?

Whats news Wendle? Got your vid, not bad.

Front passenger is closer than drivers side wheel.
The radius arms appear straight with a straight edge. No apparent clunking under the car. RAdius arm mounting plate appears to be OK as do bushes.

hhmmmm. check each chassis rail between the coil bucket and the radius arm mount. there will be a few little ripples due to the bending proccess when it is made, just check to see if there is any massive deflections.

Go get a wheel alighnment that will show where the problem is, we could sit here guessing all day but you need proper meassurments. Does it drive as per normal or is it a bit strange?

Robbo wrote:Go get a wheel alighnment that will show where the problem is, we could sit here guessing all day but you need proper meassurments. Does it drive as per normal or is it a bit strange?

20mm is a lot. somehting will be visibly wrong, it may not be something that a wheel alignment (which is really only castor, camber and toe) will show up anyway.

When cars are built there not built perfect. If it drives as good as it did before i would not worry about it. You most likly did not measure it before the mishap so if you cannot spot any visible damage it is just normal.

Or...you could just go do the same thing and land on the other wheel and then they'd match!!!

When I do A frame rears and 5 link fronts (every day) we measure everthing B4 we start and havnt had a rig perfect yet. Thats Nissan, Toyotas, RR, Jeep ect. We measured a MK front not so long ago and it was 35mm out of square from factory. When we set it up I am happy when it is + or - 1mm out of square but factory is another thing. As for getting a housing straightened (we never do it) as we have found it weakens the housing (we always go for a new housing). A dead give away that the housing is bent is oil leaking from the nuckles as if it is bent the axle will be running out of roung through the axle seal causing diff oil to run into the diff nuckle and drain out of the wiper seal.

Spot on cheezy throw the housing to the shit house. Also wendle a wheel alighnment done properly will tell you which wheel is out of place, it may be that the opposite side is forward now not the other way around. I know a guy that can tell on his machine weather your chassis is bent or axle housing or just an axle.

With the steering wheel where it usually is when driving straight ahead, measure from middle edge of front rim to same spot on rear rim. Repeat on other side to see if a diffference

Bazzle

About to do the measurements and will post answers shortly.
I have got a funny feeling the body may have slid forward on the mounts a bit.
I'll measure up first and see what I have got and I may well loosen the body mounts and reverse then brake and see if it sits up square provided the wheel to wheel measure ments are faily close.
CJ

[quote="berett"]Or...you could just go do the same thing and land on the other wheel and then they'd match!!! [/quote]

that would have to be the cheapest option here fellas.........

I bloody near sh@t myself last time let alone do it again! Mind you it elicited several comments, the highlight being; "That has to be the most impressive, and dumbest, thing I have ever seen." In the video leading up to the jump was a comment from one of the girls saying; "Do you think he'll get air?" Apparently I got about 6' under the wheels. As soon as I find a way to download the video I'll set up a link somewhere for it.
CJ

is it common to bent diff without really jumping the vehicle?

embryo wrote:is it common to bent diff without really jumping the vehicle?

No but it is common to bend a Patrol diff if it is jumped.