Rear axle alignment tool question ?

[erickmarciano]

Hi guys
Trying to adjust the rear axle
1- when we use the tool and put the 2 tubes over the nut the tool has to be rotated around 20 degrees to be able to point on the nut ?? Hope this is clear
2-can we do all this with wheels off the floor ?
Thanks

[rgafitanu@gmail.com]

Not really clear what you mean by rotating. The tool goes over the 2 stubs for the trailing arm donuts and it is fixed. The only thing you have to do is to work on the adjuster to bring the differential hinge shaft aligned with the pointer. I have done it with the wheels hanging. I am not sure you can do it with the wheels on the ground.

[erickmarciano]

I knew It would not be clear lol

To be able to point the pointer on the nut the whole contraption has to be rotated around 20degrees ( the black line 280mm has to go down not paralel to the floor

[rgafitanu@gmail.com]

There must be something wrong. I made the same tool as yours and when I swapped my 4.08 with a 3.27 everything lined up with the tool. I was actually lucky and I didn't need to do any adjustments. So, if the tool is parallel with the car, your pointer is a few inches higher on the diff post (yellow arrow) than where it should be (orange arrow)? Differential is an unusual low position?

[erickmarciano]

Yes exactly
I will double check this week
Thanks

[rgafitanu@gmail.com]

Interesting. If the diff. mounting post is correctly bolted to the rubber mount in the trunk the diff. should be at the correct level.

[cfm65@me.com]

Eric,
I think the car should be on the ground. Put it down and roll it a few meters back and forth for the suspension to settle, before using the adjustment tool. With the car in the air, the diff is hanging at an angle
Regards,
Chris

[erickmarciano]

Good point. Will lower drive in spring and recheck

[rgafitanu@gmail.com]

There should be very little difference between wheels hanging or on the ground. If the differential mount (new) is installed correctly there should be less than 1/4" of height difference (due to rubber compression). Check that the differential post is fully seated into the mount. Resting the car on the rear wheels may help with seating that mount, I hope.