just saw recently on a TV show called All Girls Garage(Victory channel for me in North Myrtle Beach) where thay swapped out a stock complete rear axle out of a 2009 HHR LT for one out of a Coablt ss that they found at a auto yard. went in with VERY LITTLE issue and as a result of the swap that now had REAR DISC BRAKES......problem would be finding that Cobalt SS rear axle....

 

Been talked about before. Shouldn't be any issues.

 

Sounds great... problem with TV show ideas is they typically only show a few seconds of the actual work. And who knows if it's actually being done 'correct'. You may also need a proportioning valve, maybe a master cylinder, ???.

One plus is not having to adjust your drum brakes anymore!!

 

There is no actual proportioning valve with the ABS system, the EBCM handles that. I don't know if you would need to swap out the EBCM from a Cobalt, maybe the same part number.

The MC is split diagonally so, probably no problem there. LF-RR, RF-LR.

Probably just a plug disc brakes in sort of thing.

 

So the HHR that the axle assembly is going into would need to have ABS?

 

Not sure about that. Cars without ABS do have a proportioning valve.

 

Upgrade the front discs

https://www.chevyhhr.net/forums/brak...ard-hhr-42938/


Frenchy42 did a swap from a Cobalt SS 4door sedan the how to is around here somewhere

 

This was bantered about years ago here on the forums. If I remember correctly it bolts right in, no need to change valving, the tricky bit is finding e-brake cables. A couple of guys had done it.

 

Greybeard999, this is a very easy swap if you can find a donor axle, I will bump my original thread to the top for you and take a look, great info by many members on the subject for years.

 

Thanks... I wish I could do this swap myself, but... you know, life gets in the way of living.