Khern

I have an 81 olds 98 I need an axel that has 26 spline with the 4 3/4 bolt patent which is the big bolt pattern but I can't find one any wear not even online

joe_padavano

Welcome. A 1981 Olds Ninety Eight only came with the 5 x 5" bolt pattern. The Delta 88s of that vintage used the smaller 5 x 4.75" pattern, but all Ninety Eights, B-body wagons, and B-body sedans with HD brakes and suspension got the big brakes and 5" bolt pattern.

Khern

The only axel I can find that has the 5" bolt pattern is the 28 spline an nine is the 26 spline

joe_padavano

What exactly are you looking for? An axle shaft, or the whole rear end assembly?

Khern

Just the axel shaft

joe_padavano

I'd count again, but if it really is 26 spline, contact Moser.

http://www.smileysracing.com/shoppin...i=64368&c=2418

Khern

We found a 28 spline axel and it wouldn't slide into the pumpkin cause it was to big around and full size Chevy pick up wheels fit on the car

monzaz

YA G22506477

5 on 4.75 wheel bolt pattern 30.5 inch long axle shaft.

I can get a better price. You really need to pull the axle and measure the exact length. View the picture on how to measure.

joe_padavano

Jim,

The OP has a 1981 Ninety Eight. That has a 5 x 5" bolt pattern, not 5 x 4.75". From above:

monzaz

I am going by what he has listed...??? does he not know how to measure his wheel bolt pattern?

Oh did not see the FULL size chevy pick wheel fits on the car.

joe_padavano

While I don't know the OP, I have found that surprisingly many people do not know how to measure a bolt circle with an odd number of studs. More to the point, every single 1981 Olds Ninety Eight came from the factory with the 5x5" bolt circle.

Khern

The axel is 30 1/2 inch long and it's 26 spline bu I can't find the right bolt patern so I just took the axel to a machine shop and had the bolt hole pattern drilled out

monzaz

The brake drum registers are different from 5 on 4 3/4 to 5 on 5 (3") This is what centers the drum. Important...

I looked up a mini astro van and i think think one of the left or right axles might work as long as the axle shaft bearing diameter is the same...1.40 is what you need. If the astro mini van has 1.618 your screwed again....

monzaz

Chevrolet / Chevy Astro / Safari Van (1985 - 1989)

Not sure if the wheel bolt pattern is 5 on 5 or 5 on 4 3/4"

Checking now

monzaz

Well it appear to have the small 1.40 shaft size bearing surface area too. I am sure your Olds with a 7.5 will have that same 1.40 as i do not see a need for a 7.5 rear bearing being bigger as it is a light duty rear...??? right?

Try that axle I can get it for you at some of a discount if you need. Jim

joe_padavano

Astro vans are 5 x 5".