RX-7 GSL-SE axle brake caliper orientation

[D P]

For those of you out there with the gsl-se rear end, do you have any tips/photos you care to share of the preferred brake caliper orientation to clear the frame?

Thanks in advance.

[fj20spl311]

The current set-up these days is to align the lever on the caliper to match the ROD from the E brake set-up.

IMG_0317.JPG

[D P]

The current set-up these days is to align the lever on the caliper to match the ROD from the E brake set-up.

Hi Phil,

Thank you for the reply. Have you had any frame clearance issues, or did you do any clearancing of the frame in advance?

Cheers,
Peter

[fj20spl311]

I bought the car with the axle installed. I have no clearance issues. The rear axle was done by the gentleman in Washington IIRC.

PS My 15x7 +12 rims fit with 205/15 Dunlop tires.

[D P]

I bought the car with the axle installed. I have no clearance issues. The rear axle was done by the gentleman in Washington IIRC.

PS My 15x7 +12 rims fit with 205/15 Dunlop tires.

Thanks for the info Phil!

[Mattk]

I’m also curious about the orientation. In my setup it looks like my Caliper is going to hit the frame.

Matthew

[fj20spl311]

It may depend on which caliper rotor set-up. I have the solid disc set-up, the vented disc set-up might be different. IIRC Alvin has the vented disc.

IMG_0310.JPG

[Alvin]

There is a thread dedicated to this:
viewtopic.php?f=2&t=9547&hilit=rx+7+gsl#p65438

[D P]

There is a thread dedicated to this:
viewtopic.php?f=2&t=9547&hilit=rx+7+gsl#p65438

Hi Alvin,

Thanks for the reply. I’ve been through that thread various times, and I recall the first post by Michael being informative, however, it has since been deleted. I reached out to him for some advice, but so far it seems like he has been busy.

Cheers

[Alvin]

There is a thread dedicated to this:
viewtopic.php?f=2&t=9547&hilit=rx+7+gsl#p65438

Hi Alvin,

Thanks for the reply. I’ve been through that thread various times, and I recall the first post by Michael being informative, however, it has since been deleted. I reached out to him for some advice, but so far it seems like he has been busy.

Cheers

The preferred location depends on several things, but the picture I linked to above is the best, imho. It is not necessary to clearance the frame. If you are running into frame clearance issues I suspect the axle was narrowed too much.

[D P]

The preferred location depends on several things, but the picture I linked to above is the best, imho. It is not necessary to clearance the frame. If you are running into frame clearance issues I suspect the axle was narrowed too much.

Appreciated, thank you!!!

[Alvin]

The preferred location depends on several things, but the picture I linked to above is the best, imho. It is not necessary to clearance the frame. If you are running into frame clearance issues I suspect the axle was narrowed too much.

Appreciated, thank you!!!

Post some pics of your build I'm sure others will chime in

[dynaguy]

I’m also curious about the orientation. In my setup it looks like my Caliper is going to hit the frame.

Matthew

Mine looked that way also. Decided to try it, not a problem. Pat

[Mattk]

Yeah I narrowed the sh!t out of mine

4A83F08B-04AD-4D50-9B07-38F3A9C2F9BF.jpeg

I have about 1/2 to 3/4 on each side. But my wheels fit perfectly 205/50-15 in the wheel wells. The rearend is not fully in place yet but I’m getting there.

Matthew

[Ed Mason]

I had Michael from Spriso narrow my mazda rearend, and the calipers were clocked to use the stock ebrake system with some mods. He narrowed it to 48 inches. I had to notch and box the frame to accommodate the travel of the rearend (and the calipers). I actually had a small dent in the frame caused by the rearend travel. It cut the boot on the ebrake section of the caliper and I had to install a new boot. It also almost compromised the brake line on the passenger side caliper. So cover all of your bases. I contacted Michael and he told me that I needed to modify the frame accordingly. I can post some pics if you want. You also may contact Michael for any advice. I had to cut and weld on the brand new, freshly painted frame and body and rearend. I had to disconnect the brake lines, remove the calipers, wheels. It would have been easier to remove the complete rearend and leaf springs. But I didn't know. It was worth it, though, the car is a beast.