RJFabCab

How do you guys safely get the entire rear end off the ground (up on jackstands)?

If I jack the car up from the left front jack point, I can't really get the left rear jack point high enough to slide a jackstand under it. If I could get a stand under the left rear jack point, then the thought of the car wobbling as I try to jack up the right front to a stand under the right rear makes me nervous.

Is there a center point in the rear of the car that can be used for jacking up both sides of the rear at the same time?

Someone clue me in here...

Orient Express

I use the center of the engine case just before the transmission, and behind the sump cover as the jack point to get the rear end off of the ground (I assume you are talking about a 911 and not a GT2 or GT3).

There is a thick part of the casting there, that is perfectly safe to stick a jack on. Just make sure the jack is not on the sump cover or the transmission.

RJFabCab

Orient,

Can I borrow your Levitator?

Would you happen to have a pic of exactly where you're jacking up the rear? The thought of a lift has crossed my mind...

TIA

Bill_C4S

RJ...a lift? lmao...when will it end.

Andy (Atlanta)

One option is to place it in the middle of the cross member.

rrys

This center location is a great point to jack from, but even with a very low profile jack I find it convenient to drive the car onto a few 2x6 boards to get enough clearance for the floor jack slid in from the rear. I also made up a few plates that fit onto the left and right jack points so that my jack stands don't mar the jack points.

rdstemler

That cross member is part of the chassis and not part of the suspension, isn't it???

RJFabCab

Thanks everyone...

Great pic, Andy.

JimB

I'm not sure how you have all decided that these are good jack points. The cross member in the pic above is a fairly light piece of alum. I know because I broke mine when I crashed at Road America last year. It is intended to support (sort of) the engine/trans but having held it in my hands I certainly would not recommend that anyone use it to lift the car. If I have to lift the back of the car to rotate it I tend to use the L on the bottom of the engine but I certainly would not tell anyone that it is a safe jack point. I do it at my own peril knowing that it not intended for that purpose and that no engineer intended it to deal with the stress of 2000 lbs on a couple square inches.

When I need to put my race car on stands, I use the jack points. I would say that you should use any other approach ar your own risk.

Just my 2 cents worth.
Jim

RJFabCab

There are no ends... only new beginnings.

RJFabCab

I hear ya, Jim. I didn't know if there were some other factory safe points under the car.

Orient Express

Believe it or not, but the center of the engine case is a Porsche approved lifting point. Ask any Porsche Tech to verify it. Raising the car via the engine case passes the stress directly up into the chassis via the motor attachment points.

Now remember, the only reason you are raising up the car back there is to stick jack stands on the rear chassis lift points. It is not safe to work on the car with it just supported in the back from the engine case.

lexpilot

I see that Costco has some 20 ton hydraulic bottle jacks, cheap. How about driving your car onto 4 2x8's to get some clearance. Then pump up each corner with the bottle jacks. Then place multiple 2x8's stacked under each tire for safety.
Has anybody tried this ?

spar10

why not just get a pair of ramps? you could get a pair of one piece, heavy gauge solid steel car ramps with steel pavement grippers that will hold 7000 lbs. gvw. (4200lbs. axle weight)

Bford100

Is that dark area near the "X" a result of a leaky RMS?????????????