Hi!

Need som advice.
I am about to get a new or used upgraded rear axle/posi/gears for my firebird,it chould hold for some street/strip and aprox 500hp at the wheels.

Is there anything that bolts rigth on,do i need to swap the driveshaft aswell?

Budget aprox 2000usd.

Thanks for any replay.

 

You can upgrade your 10 bolt but eventually you will have to change it to something better so theres no sense spending money twice.

Buy a 9" housing package. You get a 9" bolt in housing and axles and you can use your current brakes on it. All you would need to do is pick up a center section locally. I'm not sure what the availability of a 9" center would be in Sweden. Don't even bother with 28 spline axles. Go right to 31 spline.

Unfortunately, shipping costs will probably eat most of your budget.

 

Ok
Are all 9 bolt the same length?
Should i look fot any special 9 bolt to fit my chassi?

 

9", not 9 bolt. You need to buy an aftermarket Ford 9" designed for 82-92 third gens. It will have all the proper mounting attachments for the shocks, springs, torque arm etc. Trying to find and use a junkyard diff will take a bunch of refabrication of the suspension system to get it to work.

The 9" housing package with axles is somewhere around $1000. No center section, no brakes.

 

Ok
Sorry,ment 9"
Thanks for the answers