Should I convert to rear disc or not?

stangboy

Founding Member
Aug 31, 1999
3,932
469
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New Orleans, LA
Hey guys I haven't been on the forums in a few years since I lost my car in Hurricane Katrina. But I just bought an 88 coupe so I'm BAAAAAAACK!!!! Ok, here's what I have. The car is a stock 5.0 car with just exhaust and gears. I want to convert it to 5-lug but I'm debating on if I want to convert to rear disc while I'm at it or not. I don't have a very large budget to work with but if its worth it to do it then I might. I don't plan on road racing the car just street driving and occasional trips to the drag strip. So basically I'm looking for some pros and cons between rear disc and rear drums.

BTW, this will NOT be a daily driver.

Thanks!!!
 
worth the money.... yes.... necessary given how you plan on using the car... maybe not.......

However, you might feel differently the first time you need to slow down from 120+ and you get the "Pucker effect" when your brakes fade like no one's business.

I think its a worth while investment for anyone with a fox.
 
Well, the 5-lug conversion kit I plan to get is the one with the cobra 13" disc in the front. Thats why I was wondering if the braking would improve that much more with the rear disc. I figured the 13" discs in the front would be good enough. I just don't really want to have to change out the master cylinder and booster and proportioning valve and whatever else is involved. I call me lazy I guess. lol :p
 
My buddy's coupe just has a simple Tbird rear end in it with disk brakes and it stops so much better than my car. The front/disks/pads are all stock and it still makes a huge difference.
 
Yes, rear disk brakes help. If anything they keep braking consistency since drum brakes fade very quickly and can change your pedal feel a bit when they do.

Drum brakes are fine, if you are a truck and only need to stop once.
 
Ok ok ok, yall conveniced me to do. Now I have questions. Do I need to get the brake booster, master cylinder and proportioning valve from a 94-95 car? Give me details on that part please. I want to get the North Race Carsrear disc conversion kit simply because it has all the parts I need.....except the MC, booster, and PV.....I think.
 
Ok ok ok, yall conveniced me to do. Now I have questions. Do I need to get the brake booster, master cylinder and proportioning valve from a 94-95 car? Give me details on that part please. I want to get the North Race Carsrear disc conversion kit simply because it has all the parts I need.....except the MC, booster, and PV.....I think.


MC you can use either the 94-95 Cobra or GT/V6 or the '93 Cobra MC

Booster you can use the 93 Cobra booster or any 94-95 booster

Don't take the prop valve. Gut yours using the FMS prop valve plug (p/n M-2450-A ) for around $10 and then install an adjustable prop valve on the brass union on the pass side of the firewall.
 
MC you can use either the 94-95 Cobra or GT/V6 or the '93 Cobra MC

Booster you can use the 93 Cobra booster or any 94-95 booster

Don't take the prop valve. Gut yours using the FMS prop valve plug (p/n M-2450-A ) for around $10 and then install an adjustable prop valve on the brass union on the pass side of the firewall.

Ok so these parts should be what I need, right? :
87-93 MASTER CYLINDER ADAPTER KIT, ADAPTS 93 COBRA BRAKE MASTER CYLINDER TO FACTORY 87-93 HARD LINES MUSTANG

ADJUSTABLE PROPORTIONG VALVE MISCFORD

93 MASTER CYLINDER, COBRA MUSTANG

93 POWER BRAKE BOOSTER, COBRA MUSTANG