It's about 20 thousands...roughly a 1/8". The only issue might be a little bit of interference between the lug stud heads behind the axle flange and some of the e-brake hardware. I think it'll be alright though. The spacer on the old axles is the difference...I let QP know today, we'll see what they say.

20 thousandth of an inch is 0.020 which is smaller than the standard overbore of 30 thousandths or 0.030. 1/8th inch is 0.125 which is over 6 times more than 20 thousandths. You're a long way off with the new axels. I'm going to agree with, Donny. I think your axels are wrong. I don't know the differences between what you started with and the tapered bearings as I have only dealt with the tapered bearings. To me, it make no sense that the distance from the outer edge of the flange to the inner edge of the bearing would be different between the two axels. The inner portion of the bearings set against the inside of the housing ends regardless of tapered or not. Clearly, I could be wrong since I'm not familiar with the regular housing ends and bearings.

2.500" brake offset -
2.360" brake offset =
0.140" or just over an 1/8"

I really need to get a set of digital calipers... :D

Quick Performance is going to fix the axles for me...

I'm sending the axles back today, they'll press those bearings off, put the spacer on and new bearings to get the brake offset correct...but most importantly they'll also put a full circle spacer ring on the axles before pressing the new bearings on which will make installation a WHOLE lot easier for me.

Kills my weekend plans though...

Glad it's being fixed though.

If the axles don't get back here soon, next weekend's plans are in jeopardy as well...

Good news is QP is throwing in a free T-shirt since I've been so patient...

:thumbsup:

Just wanted to say I love those Monte Carlos, had one many years ago. I don't know the history of your axle bearing problems, but you are right that they are a problem in general for cheap American cars rolling the bearing directly on the axle.

It sounds painful, but fixing those bearings the right way with something durable is surely the right way to go. I am contemplating floating axles (see this post).

Thanks...I kinda like them too. I hope this fix helps the bearings last a little longer myself...I know it's not the ultimate fix but it's an improvement over what I had for sure.

Now...if they've just show the hell up so I can see if they fit right this time...

So they showed up yesterday... The new brake offset is just a tad the other way from my old setup.

https://lh3.googleusercontent.com/-9...0501151848.jpg

This moves the axle flange less than a 1/8" out from where it was before.

Putting the spacer ring on the axle before pressing the bearing on was a GREAT idea...I should have been doing that long ago, it greatly helped during installation of the axle.

The axles\bearings slid right into place and the brake rotor ended up with plenty of room for the sliding caliper to still work right.

Here is the retainer holding the spacer ring and bearing in place...

https://lh6.googleusercontent.com/-v...501151906e.jpg

After I took the following picture I noticed the stainless cap was loose on the caliper bracket and I cured that issue...but this picture shows how the caliper fits on the bracket with the new brake offset.

https://lh6.googleusercontent.com/-z...501151910a.jpg

The test drive proved successful, no vibrations... Time will tell how well these bearings hold up but for now I'm calling the upgrade a success.