SKU: 92263989243

Porterfield Brake Pads for 1993 GMC C3500 2WD SRW 2 1/2" R/Shoe

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Description

Porterfield Brake Pads for 1993 GMC C3500 2WD SRW 2 1/2" R/ShoePorterfield Brake Pads for 1993 GMC C3500 2WD SRW 2 1 2" R Shoe Porterfield R4 Porterfield R4 Carbon Kevlar based brake pads were fully designed for heavy duty extreme motorsports use. Its one of the the few true motorsports competition pads available on the market today. The carbon based semi metallic R4 brake material allows the brake pad to absorb huge amounts of heat and dissipate it quickly and evenly over time. The Carbon Kevlar material also

Porterfield Brake Pads for 1993 GMC C3500 2WD SRW 2 1/2" R/Shoe

Porterfield R4

Porterfield R4 Carbon Kevlar based brake pads were fully designed for heavy-duty extreme motorsports use. Its one of the the few true motorsports competition pads available on the market today. The carbon based semi metallic R4 brake material allows the brake pad to absorb huge amounts of heat and dissipate it quickly and evenly over time. The Carbon-Kevlar material also allows the brake pad to heat up to operating temperature right away so little pad warmup is required for optimal operating condition. This compound also requires very little bed-in so that one is able to change out the pads and almost immediately able use them to their full potential.

R4 series provides high initial bite for immediate brake response while yielding extremely consistent modulation and predictability. This is great for all road courses, oval track, rally, vintage racing, autocross, club events, and professional driving events. This is one of the best motorsports pads we have used. Available for many applications, so please contact us if you do not see one for your car.

Porterfield R4-1

The R4-1 Vintage Full Race Compound was developed using knowledge testing in the vintage racing community. Optimum uses for the R4-1, under conditions where very high friction is needed with minimal warm up time and in applications where there is difficulty in maintaining sufficient heat with conventional race pad compounds. Widely used on vintage GT and formula cars the R4-1 is also gaining popularity in off-road and rally-cross classes. Great modulation, consistent pedal feedback and rotor friendly at all temperatures as with all the other Porterfield Carbon Kevlar compounds.

Porterfield R4-E

The R4-E Endurance Race Compound is a carbon kevlar compound made to last a bit longer than the original R-4 compound. The R4-E compound is designed to endure higher prolonged temperature and still has pad life as long or longer than Porterfield R-4 do. This pad is great for club enduro events and applications where temperatures are at their maximum.

Porterfield R4-S

Porterfield R4-S high performance street and autocross brake pads are great for heavy-duty street and light track applications. Compound is perfect for everyday use while still keeping the highly capable track ready performance. The R4-S features a high friction level that will increase your stopping power with minimal pedal effort.

The R4-S series pads are VERY VERY rotor friendly and yield very low levels of dust; levels are far below OEM equipment or any other high performance brake pads. Your car will stop better and your wheels will stay cleaner longer. Good for autocross, rallies, driving school, and of course daily driving with a little extra stopping power. R4-S pads are available for virtually all vehicles sold in the US and custom R4-S pad sizes for competition style calipers are also available.

This is one of the very best all around street/strip brake pads available at a great price.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 92263989243

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4.4 ★★★★★
Based on 15 reviews
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Product Reviews
C
Verified Purchase
CV S.
Birmingham, US
★★★★★ 5
Wow this stuff works!!
Wow. What an amazing product. I own a 1976 Bertram 42 aft cabin motor yacht. The previous owner had not waxed it in a good long time. I spent a weekend with four friends sweating and laboring using the traditional wet sanding, buffing, and waxing it's heavily oxidized finish. One of the friends helping was a former professional boat detailer. The results were ok. The wax job lasted about six months before it looked like crap. There's a lot of controversy over Poli Glow. A number of the old fellows who sit around drinking coffee in the marina clubhouse swear that nothing should go on a boat except the most expensive and laborious traditional wax, preferably applied by a crew of of professionals. They universally ranted about the failings of Poli Glow despite having no practical experience. They also talk more than they actually boat, so I didn't listen to them. I was cautious, and started with my heavily oxidized flybridge. I wanted to work my way top to bottom and I figured if I hated the look, I could stop and it wouldn't really noticeable. It was easy to use. I bought the complete kit. Mixed the prep. Sprayed and scrubbed. Wow that stuff gets things clean and even. I wiped the Poli Glow on with the provided mitt. Tip: really, you needs to let each coat dry before applying the next. It was noticeable alright. From the dock you can now see an actual reflection of my antennae in the now shiny Fiberglas. It's amazing. I did find that the more oxidized portions were thirsty as heck and took a lot of coats. The results are worth it. Application is way less laborious than buffing and waxing. If you can wipe clean a countertop in your kitchen or galley you can Poli Glow like a pro. It's that stupidly easy. Where the gel coat was reasonably smooth the product built a mirror finish. I didn't even put her on the hard. I applied it while it was docked. I couldn't have five that with a buffer. My pro detailer friend was totally surprised at the result. Bottom line: if you have an older sad looking boat this stuff can make it shiny and happy with minimal labor. Good stuff well worth the price.
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Reviewed in the United States on June 29, 2017
P
Verified Purchase
pdb
New York, US
★★★★★ 4
Overall great product, especially on solid colours.
I bought a 33 year old boat that is mostly white gelcoat. Some of the white had yellowed in areas and there were bright spots where I removed stickers and hull numbers. The boat also has red and blue metal flake that was quite faded and gritty. The flake is large particles of metal or paint or whatever, not fine little glitter bits like they do now. I called Poli Glow Canada and the guy told me to use 600 grit wet sandpaper to smooth out the metal flake and then wash with the Poli Prep. The white came up pretty clean, but I had to use the sandpaper on some areas to take off the yellow. The Poli Glow went on really easily and quickly. When you are doing it, keep an eye on the the edges of the applicator. If the liquid starts to harden, wash the edges in warm water to get them soft again. I didn't do this and have some small bumps kind of like fuzz off a paint roller, which I guess is bits of dried liquid that came off the applicator. You will also get streaks if the edges are dry, but the next coat fixes that right away. Check after each coat to ensure it is smooth. I'm pretty sure a quick pass with the sandpaper would have removed the bumps, but by the time I was finished, I didn't want to mess with it. In the end, the white turned out looking great. The flake is definitely better than when I bought it, but it only shines at about 50% of original (compared to the flake on the transom which was in really good condition) and I was expecting better based on the before and after shots on their site. There are also some streaks in the flake from certain angles where I guess my sanding pressure wasn't consistent.
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Reviewed in the United States on November 26, 2013
T
Verified Purchase
The skinny...
Cuba, US
★★★★★ 5
I am hard to please...especially expensive products...
K...So I have this 26 ft. sailboat. I have all the professional equipment you can use to restore fiberglass shine. However, a 15 year old sailboat's topside will usually have pitting that you COULD sand down and shine.. but this is a risky step as you think the gelcoat and if you go through, now you have an eyesore of an entirely different nature... My only problem with trying this was the idea that it would fade out shortly and possibly yellow. However, a bigger concern is continued breakdown of the glass surface. An over-riding concern. Wax on a surface that is pitted is usually short lasting and does shine well..good for 3 months, maybe. I bit the bullet and bought this after looking at it's competitors. BUY THE KIT, NOT JUST THE POLIGLOW. The cleaner worked better than any other I have bought. I don't know why. It just did. The scrubbing sponge is perfect for the job. I used a smaller dishwashing scrubber in tight spaces..it seriously was inadequate. This kit was made right, I'm thinking. Following the directions to apply per the bottle. I was skeptical about using a damp mit. I have done the entire cockpit area of the boat at this point with 6 coats and used maybe a half an inch of the product. And the boat looks absolutely AMAZING. Will this yellow? Will it last a year? IDK, but other reviews suggest positive experiences on both counts. Best of all, this will HALT the ongoing beating the topsides takes. (On another note, don't use this on nonskid. It's slick..just my opinion, maybe no more slick than new nonskid. But there is a really great product if you search "nonskid fiberglass surface restorer." Expensive but works.) Best description I can give you on how this will turn out is .. you know how good a surface that is aged looks when you wet it? That..but it stays. Yes, you will need 4-6 coats. But it dries very quickly and still doesn't use much product. At this performance level, the price was worth it. And I am frugal beyond belief. I would recommend that you do professionally buff any fiberglass surface with a good medium one step cutting compound and a professional buffer before you apply this to get best results. DO NOT USE THIS ON SURFACES THAT ALREADY ARE SHINY. It says so right on the kit. I also agree your smoothest outcome will come at room temp vs applying int the sun or significant heat. It dries quickly and doesn't even out as well before drying. Still, it will look great.
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Reviewed in the United States on August 8, 2016
J
Verified Purchase
Jake D.
Lowell, US
★★★★★ 5
YOU WILL LOVE IT!!!
This is the best product I’ve ever used on our boat! We have a 26-year-old Tige wakeboard boat that had heavy oxidation and water spots. In addition to a heavily faded gel coat. I spent a few hours working on it and it completely restored our boat! I got the recommendation from my father in law after he used it on his RV. The results speak for themselves. I highly recommend this product!
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Reviewed in the United States on March 21, 2026
J
Verified Purchase
JD S.
Grantham, US
★★★★★ 5
Great Product!
Does what it says. It made my 20-year-old RV look like new!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026

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