You just need to put your jackstands under the frame. Then you can push your axle a bit and it will fit just fine.

You are correct in your thinking you don't need the extension.

Joe

A gun in the hand is better than a cop on the phone.

98 Passport 33's, Supercharged, Calmini Bumper, rockbars, diff drops, Teralows, 4.77's, Aussie and ARB lockers, Safari snorkel, Optima red top.