4 wheel discs behind 15" wheels

[O'Neall]

Does either WIlwood or Baer make 4-wheel disc kit that would fit behind a 15" snowflake 77 Trans Am wheel? I'm pretty sure the 12" rotors are too big... do they make an 11" that would fit?

[Skip Fix]

12" 1LE rotors and B car spindles do. I think the 10.75 Wilwood kit for the fronts is the next size smaller than 12.19 kit.

[radback]

What about rear?
I heard Blazer conversion fit under snowflakes.

Is there any other choice for rear?

What about this C4 conversion? (http://www.geocities.com/torkerscamaro/torker.html)

thanks

[MrQuick]

I know the Dynalite Pro Series will fit behind OEM rims. Give Frank a hollar, he would know for sure about the snowflake fitment.

[woody80z28]

I did the 12" 1LE on the front and S10-Blazer 11.5" rear on mine to clear the stock 15s. Cheap solution too.

[radback]

Woody,
do you have a full part list (with part numbers) for the conversions you've made (I've found some lists on the net, but not a really full one) including all the parts needed?

I'm located in france, so I need to buy all parts new from US, and I can't afford to order the wrong parts, so this list would be very helpfull.

Few questions about the Blazer conversion:

-Do you need longer Bolts if you start with a rear drum car?
-Do you need to change the mounting point of the master cylinder rod on the break pedal?

Thanks a lot!

[ProdigyCustoms]

We have a Wilwood kit with 11.75 front and 12.2 rear that fits.

[woody80z28]

Woody,
do you have a full part list (with part numbers) for the conversions you've made (I've found some lists on the net, but not a really full one) including all the parts needed?

I'm located in france, so I need to buy all parts new from US, and I can't afford to order the wrong parts, so this list would be very helpfull.

Few questions about the Blazer conversion:

-Do you need longer Bolts if you start with a rear drum car?
-Do you need to change the mounting point of the master cylinder rod on the break pedal?

Thanks a lot! Just started this:

http://www.nastyz28.com/forum/showthread.php?p=1054119#post1054119

I used the donor Blazer's bolts and the master cylinder rod should not be a problem.

[radback]

Thanks Woody.
Aren't the Blazer studs metric?
I suppose drum axles studs are too shorts.
so maybe T/A rear disc axles studs should fit?

Frank, what Wilwood kits should fit?
I checked some paterns and didn't find a front wilwood kit for snowflakes.
Prices?
Thanks

[ProdigyCustoms]

For the front, Here is the 11.75 kit instructions and Diagram. The kit is only needs a 13" diameter inner wheel hoop to clear the caliper, and the caliper only sticks out .04 which is basically nothing, so no big hub offset is needed for spoke clearance.

http://www.wilwood.com/PDF/ds218.pdf

On the rear, here is the 12.2" instructions and diagram and you can see the caliper is so far behind the hub face there is no clearance concerns.

http://www.wilwood.com/PDF/ds540.pdf

We just worked with a TA restoration shop that did this kit on a 77 TA, and there are no clearance issues. there were a couple little things. On the rear rotor there was some minor chamfering required so the rotor would seat firmly on the hub, seems that the register was not cut at a clean 90, but has a slight taper. no big deal

On the fronts, because the Wilwood front hub uses 1/2" studs instead of 7/16, the wheel lug opening had to be opened a teenie.

Other then those couple things, they work.

[ProdigyCustoms]

As for price, here is a picture of a 12.2" / 12.2" kit which would be identical to your kit, except yours would be a 11.75" / 12.2" set. Cost is the same.



Total Car G-Machine Brake Packages for Camaro, Chevelle, Nova, F body, A body, G Body, Ford, Mustang, Mopar and many others featuring the worlds best brakes, Wilwood Disc Brakes! Prodigy Customs EXCLUSIVE Total Car G Machine Brake Packages takes all the guess work out of your 4 wheel disc brake conversion. Our kits include front and rear Wilwood brakes in the size of your choice, front sizes from 10.75" - 14" rotors for all popular applications, Rear brakes include INTERNAL E BRAKE in sizes from 12.2" to 14" for all popular applications. Calipers are available in Four Piston to Six Piston, Dynalite and Superlite Calipers Our exclusive Total Car G-Machine brake packages include everything required to convert you original brakes to monster 4 wheel disc. Call for your exact application.

Kits include:

Wilwood Parts Include:

Front and Rear Wilwood Kits

New front Hubs

3 pints Wilwood DOT 4 high temp Brake Fluid

Prodigy Customs Parts Include:

Front Braided Brake Hoses

Rear Braided Brake Hose

E brake Cables for Internal E Brakes

Master Cylinder

Adjustable Proportioning Valve

We even include Safety Wire and Safety Wire Pliers for proper 2 piece rotor assembly


NOTE:

($1750 Kit includes BLACK CALIPERS and NON Drilled / Slotted Rotors)

Options include:

Red, Blue, Yellow, Silver and Polished Calipers are A + $200 Option,

Drilled and Slotted Rotors are a + $200 Option

Wilwood Aluminum Dual Reservoir Master Cylinder is a + $170 Option

Dual Diaphram Polished Stainless Power brake Booster $200

KIT AS SHOWN WITH RED CALIPERS, DRILLED AND SLOTTED ROTORS, AND POWER BOOSTER IS $2350.

https://static1.pt-content.com/images/noimg.gif

[O'Neall]

Wow, great info! Thanks Frank!

Got a question though... wouldn't 11.75 rears be a better proportionate match to the 11.75 fronts?

Any reason they wouldn't fit? Or be a well balanced set up?

[PT Goat]

I've got the Baer Serious Street kit on the GTO, fronts and rears. They fit behind 15" Rallys, so I imagine it would be no problem with the snowflakes.

[O'Neall]

Yeah, the Baer system looks good, but I called them and was told that they don't make it in a config that fits the 2nd Gen cars... which I thought was quite odd. Oh well....

[83hurstguy]

For the front, Here is the 11.75 kit instructions and Diagram. The kit is only needs a 13" diameter inner wheel hoop to clear the caliper, and the caliper only sticks out .04 which is basically nothing, so no big hub offset is needed for spoke clearance.

http://www.wilwood.com/PDF/ds218.pdf

The instructions say that this is for a 10.75" rotor? Radius to caliper top is 6.46"... diameter therefore 13"... but for an inch larger rotor it would be 14" , right? Is the 11.75" an upgrade?

Just curious...

[woody80z28]

Thanks Woody.
Aren't the Blazer studs metric?
I suppose drum axles studs are too shorts.
so maybe T/A rear disc axles studs should fit?

Frank, what Wilwood kits should fit?
I checked some paterns and didn't find a front wilwood kit for snowflakes.
Prices?
Thanks

The factory "drum" axle studs work fine, no problems whatsoever. That's what I am still using on my car.

[ProdigyCustoms]

The instructions say that this is for a 10.75" rotor? Radius to caliper top is 6.46"... diameter therefore 13"... but for an inch larger rotor it would be 14" , right? Is the 11.75" an upgrade?

Just curious...

My fat fingers, it is a 10.75 kit.

[radback]

The factory "drum" axle studs work fine, no problems whatsoever. That's what I am still using on my car.

OK.

One more question: do theses conversions alter track width (front or rear) ?

Thanks

[PT Goat]

OK.

One more question: do theses conversions alter track width (front or rear) ?

Thanks

The Baer kit does, I believe .25" at each wheel (.5" overall).

[radback]

Thanks,
but I was thinking more about 1Le and Blazer conversion.

[woody80z28]

Thanks,
but I was thinking more about 1Le and Blazer conversion.

No I don't think so. Definitely not rear, and nothing I noticed in front.

[BonzoHansen]

If they impact front track it is negligible.

[radback]

OK Thanks!