Caliper
 

I got a question I have a 83 Mazda RX7 GSL trying to swap the front to a 85 GSL SE of the calipers a different or the same

Different

Caliper
 

So I will have to buy new calipers for the 85 GSL SE

To swap from 83 GSL brakes to 84-85 GSL-SE you need to change a lot of hardware.

-You need big bearing 84/85 Spindles (Front)
-GSL-SE caliper bracket/dust shields (Front)
-Rotors and wheel bearings/seals (Front)
-GSL-SE Front and Rear Caliper Assys
-Large Axle 84/85 Rear end with GSL-SE axles.
-Rotors (Rear)
-Wheels (F/R) as GSL-SE is 4x114.3 with a different offset requirement.


That should just about do it. GSL-SE parts are really hard to find also...

Also be advised that some 1983's have small bearing front spindles and other large bearing. Not sure I remember the build dates. There was a switch in the ramp up in production to the 1984/1985 models which are all large bearing spindles. The GSL-SE stuff requires the large bearing spindle.

Caliper
 

my 83 GSL has big bearings but I took it to the mechanic and he swap the rear end and the front from the 85 GSL SE but he told me that he use my 83 GSL front calipers and I was wondering is they the same or not

Finding the rear calipers for a GSL-SE can be a hard find. But not impossible. The rear passenger one to be specific.

Calipers
 

my car is an 83 GSL but he swap rear end and the from for a GSL SE but he told me that he used the front calipers from my 83 GSL and I kind of find kind of hard to believe cuz I don't think they are the same

83 Mazda RX7 GSL swap into a 95 GSL SE rear end so I can use the rear axles on my 83
 

so I can use my 83 GSL differential the only thing that I have to replace is the axles for a 85 gslse

If the goal is to convert the rear to GSL-SE 4x114 then yes. You will also need to change all brake parts to GSL-SE also. Not sure why you just didn't just swap the entire rearend.

Front calipers and rear calipers
 

That was my idea my mechanic told me did he swap the rear end for the 1985 gslse but he also told me that he use the calipers for my 83 GSL and to me it doesn't make no sense cuz I know they different I just don't know what they did