Is it a major job to put in a slave cylinder? What kind of price am I looking at? NOT taking it to a dealership. The clutch pedal is almost to the floor, but I got it going to get it to the shop, no slipping and kept it in 3rd til I got it to the shop.

 

Depends on your skill level, and your ability to search:

learn to use this tool: https://www.rx8club.com/search.php

slave cylinder:
http://www.finishlineperformance.com...2&cat=0&page=1

stainless steel clutch line (might as well while your there)
http://www.racingbeat.com/RX8/Clutch...ate/12640.html

How to bleed the clutch/line
https://www.rx8club.com/showthread.p...ghlight=clutch

Shop Manual:
https://www.rx8club.com/series-i-tech-garage-22/2004-mazda-rx-8-shop-manual-149654/

inside that manual you will find this:

Caution
• Fluid will damage painted surfaces. Be careful not to spill any on painted surfaces. If fluid does get on painted surfaces, wipe it off immediately.
1. Remove in the order indicated in the table.

2. Install in the reverse order of removal.

3. Bleed the air from the system.

(See CLUTCH FLUID REPLACEMENT.)

4. Inspect and adjust the clutch pedal.

(See CLUTCH PEDAL ADJUSTMENT.)



1 Clip
2 Clutch pipe, clutch hose
3 Clutch pipe
4 Bolt
5 Clutch release cylinder

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Incase you don't find it heres the pedal adjustment you need afterwords:

Clutch Pedal Stroke Inspection/Adjustment
1. Measure the clutch pedal stroke.



• If there is any malfunction, loosen locknut A and adjust the pedal stroke with adjusting bolt B. Tighten locknut A after adjustment.
Standard pedal stroke
130 mm {5.12 in}
Clutch Pedal Play Inspection/Adjustment
1. Lightly depress the clutch pedal by hand until clutch resistance is felt and then measure the pedal play.



Standard
Clutch pedal play
5-15 mm {0.20-0.59 in}
Clutch pedal push rod play
At push rod setting line :
0.1-0.5 mm {0.004-0.020 in}
(Reference value)
At pedal pad :
0.5-2.9 mm {0.020-0.110 in}
2. If it is not within the specification, loosen locknut C and turn push rod D to adjust the pedal play.

3. Remeasure the pedal play and, if it is within the specification, tighten locknut C.

Clutch Disengagement Point Inspection
1. Start the engine.

2. Without depressing the clutch pedal, move the shift lever slowly to the reverse position until gear noise is heard and hold the lever in that position.

3. Slowly depress the clutch pedal and hold at the point where the gear noise stops (clutch disengagement point).

4. Measure distance A (from pedal not depressed to clutch disengagement point) and verify that it is within the specification.



Clutch disengagement stroke (Reference value)
A: 111.8 mm {4.402 in}


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And if you search you find this: https://www.rx8club.com/showthread.p...slave+cylinder

 

My ol man, just put a slave in mine. Took him a couple hrs. {hot rodder}but he's having trouble getting the pedal to come up off the floor. He's bled it a couple times. But it's not liken him very much. But no it's not all that hard. just 2 bolts on the unit, and losen the line down on the bracket not the unit. its that easy.

 

They are difficult to bleed

Best way is a pressure bleeder....You can do it by hand but it takes a long time to get all the air out of it

 

Yea i understand i have to put it in reverse before i turn the car on it acts like i never changed yhe slave cylinder at all