The overall outside diameter of the drum is about the the same. I measured the 5 lug ones i have and they're about 10.75 inches just eyeing them up with a tape measure. the parts website says the outer diameter for both is 10.68 inches.

 

Outer diameter doesn't matter, I was swapping to 18's so...

Like I said, the only thing that worries me is the depth....The shoes are about 43mm thick so it might work. Someone's gonna have to buy a drum and hub and see if it works........

 

I have both lol I currently have the 4 lug drum on my car and i have the 5 lug drums (complete setup) sitting on my table lol

 

Where at in pa are you lol

 

Mount Pocono/Stroudsburg area, but I'm currently living out in NY for school.

 

Word, if I don't figure this out by the time your done class this year I would cone up there and waist my time to see if it worked, then give you the parts back lol.

 

Ok so I have read this thread and the sticky in brakes and suspension. I have a 2009 g5 4 bolt non abs.. I want to upgrade to lsj front calipers and rotors. Can I just hook them up with lsj hubs? Will they work properly? And I want to get the bracket for rear disc brakes and rotors and calipers from the lsj.. can I so it? Or is my car too new?

 

this

to this
all rear lsj
to this front mod. ( but not LSJ)



Looks like this when done

 

Are those Saturn sky wheels? They look great so that's with the bracket you guys offer?

 

yes Sky 18 x 8 wheels; its easy to install, you need some lsj parts including hand brake cable, and on a sedan the retaining clip for the hand brake cable needs to move ( it cant) so tie wrap. Also with wide wheels the handbrake cable gets routed behind the shock.

And contrary to what I said earlier, Maven is right, but what I have now found is that auto sedans with this set up have a slight rear brake bias at lock up ( non abs car) which is different from what I found with the coupe 4 bolt to 5 bolt drum to disc conversion with brembo fronts.

This rear/front bias may change with bedded front brakes, but I wil probably simply slot the rear pads to reduce pad area to re balance, its not worth getting into the hydraulics to re bias the brake balance.

 

So is it safe to do? And can you please list the parts needed? I would really like to do this to my car.. I have an 09 and I hope that being an 09 I can still use all lsj parts. BTW did you guys use spacers for the wheels?

 

No I wont list all the parts its a lot of work and will be on our web site when it comes on line grrrr.
the sky wheels take a minimum 15 mm hub centric spacer but you cant make it 15 mm not enough material available so we make then 19 mm
Yes I think the upgrades I do are safe, the drum brake cars have a 10 psi residual pressure in the system to the rear, compared to 2 psi on a rear disc car. but safe? yes. Am I done yet? no, but its driveable and the coupe was totally different to the sedan on balance.

 

John thanks for all your help with this topic. I wish I didnt have to deal with the snow in denver so I could upgrade to the brembo calipers without having to drop a bunch of money on 2 sets of rims and wheels

 

I will have full 4 lug to 5 lug conversion, lsj fronts with powell lsj bbk, powell rear conversion with lsj rear calipers, rotors, pads, and 5x110 enkei ev5 going in the tenth. John has been tremendous help, couldnt have happened without him! Cheers to you Mr Powell

 

Oh alright thanks a lot though for all you down I hope to see the list soon cuz I can't wait to do this to my car

 

So, for example I want to swap to 5 lug drums on the rear and lsj fronts. It would be safer to run the 5 lug drum on the rear still because of the same PSI used in both 4 and 5 lug drum set ups?

 

I think he ment that only for the sedan? Cuz he mentioned the coupe was different

 

i would say yes for sure. Clearly I am not done with the research, but yes, the coupe was fine, sedan shows rear wheel lock up at maximum , but Amanda is driving her car no problem as it is. Brake modulation in normal, even agressive driving is consistent and actually better than stock. Its only at maximum threshold breaking the rears whine first...

 

Sounds Good to me! I don't think I would have to worry about lock-up though. I will still be using the 5 lug DRUMS, not converting to disc. I'm assuming that the same 10psi line pressure will still be the same between both the 4 and 5 lug drums. Btw im also in an LS sedan.

 

Can I get a price for the bracket? Maybe a pm?