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2004 Trac - rotors and pads question

stephenson

Member
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August 22, 2007
Messages
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City, State
Fairfax Station, Virginia
Year, Model & Trim Level
2004 Sport Trac
Was gonna order Wagner rotors and TQ pads from RockAuto BUT ... they weren't able to confirm whether or not the rotors are 305mm ... does anyone know if my rotors are 305mm? Will the Wagner part number BD125721E fit?

Was gonna use these and the QC833B and the QC667 pads.

Other options better?

Too many choices ...gah!
 



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The Wagner BD125721E are the correct front rotors if you are 4WD. If RWD, they are the BD125726 and only available without the black E-Coating. 2004-05 Sport Tracs have phenolic caliper pistons on the rear, not steel. Your rear semi-metallic pads should be MX667A. Rear TQ Ceramics are not available for phenolic piston calipers with smaller piston clips. Same combo I'm using with OEM rotors and working well. Important to clean the rust protective coating from the rotors with dish soap and water, and lube all hardware with silicone brake grease before installing. Remember the Wagner pad rebate thru 5/31/14, almost a get one pair free deal. GL

https://www.wagnertqrebate.com/
 






Thanks swshawaii,

I was planning on using ceramic pads - the 667 is the rear version for 833 fronts ... i think :-) Is there a reason not to?

And, yes, it is a 4wd Trac.
 






Wagner only offers the MX667A semi-metallic pads for the rear calipers with phenolic pistons, no TQ ceramics. I was concerned about mixing pad types but am pleased. Only regret is not waiting one more month before the rebate started.
 






Ah - I get it now ... haven't ever pulled pads on the rears so didn't even know they could be plastic :-) Thanks!
 












Gahhhhhh .... ordered before I saw your post!!!!!

Gahhhhhh ....
 






Email or call them. RockAuto is known for great customer service. GL
 






We have never met, but I have to give a shout out to swshawaii, He (or she) is a walking Sport Trac parts encyclopedia!
 






Not close! Give credit to RockAuto for accurate fitment guides and great pricing.

Although, I was a parts manager for a Mercury Marine distributor many years ago.
 






I agree - I called RA like he recommended and they agreed to give me the discount even though I had already ordered - for everyone's future use, they said can do discounts up until they actually ship the parts. They shippped this morning, so worked out great!

Thanks, swshawaii!

BTW - I spent some time on Oahu at Barbers Point flying airplanes for the Navy - I remember the time very fondly.
 






Correct part number for rear phenolic pads is MX667A, not QC667A I previously posted.

QC667A Ceramic pads do not exist, no such part number. Hope you caught my mistake.
 






With the hope of helping others, here's what I ordered for F/R rotors and F/R pads for 2004 4WD Sport Trac.

Front Rotors - WAGNER (BD125721E) (2 rotors)
Rear Rotors - WAGNER (BD126031) (2 rotors)
Front Pads (ceramic) WAGNER (QC833B) (1 set)
Rear Pads (metallic as the pistons are plastic vice steel) WAGNER MX667A (1 set)
 






Perfect! If it's been over two years, probably a good time for a brake flush. I used one full quart of Valvoline Dot 3/4 synthetic fluid, about $10. After seeing the contaminants that remain in the bottom of the piston bore, I always open bleeders when compressing the pistons to replace pads. This is what I found when I opened my front caliper. (Left pic)

DSC03578-1.jpg
DSC03583-1.jpg
 






Wanted to report in on the parts and what I did incase would help someone else ...swshawii was very helpful!

The Wagner rotors, front and rear, we're indeed made in China. I understand how some feel about this, but I keep wondering where our children will work if heavy industry like this is allowed (yeah, I am inferring governmental action vice completely free market process - we and other countries do this all the time). No issues with the Chicom product quality or sizing, as there once was - we've provided the engineering and process to them so now the logical will occur. Not rotor change, I will renew my search for non-Chicom rotors. Part of the issue is being able to get someone to actually look at the boxes or products to tell. The local Ford dealer parts department swore to me that their Motorcraft boxes or rotors were marked with country of origin. Advance Auto only stocked their Wearever sub brand, and they were at least market China.

The Wagner Thermoquiet pads were made in the USA. Congratulations, Wagner, I will buy these, again, for my next pad change. Wagner should be rewarded for this, at least.

So, off the soap box, now.

Changed oil and filter (no surprises, although the small o ring like seal on the drain plug is getting a bit beat up looking).

Rotors and pads went on like rotors and pads - the front pad slide pins were really gummy inside the bore - clean the bores out with brake cleaner and a cloth wrapped screw driver. On each side, one of the pins was a squared off round pin, and the other was round with what I am assuming is a partial neoprene cover for anti-vibration purposes - the neoprene padded one will only fit in the correct opening as it is larger diameter than the squared of round pin. The pad support assembly is the same part left and right front, so on one side the neoprene padded on is in the top and reversed on the other side. Cleaned the stainless steel slide points with wire brush. Rears were unremarkable ...different design than front. Used c clamp to compress pistons front and rear ...rags under reservoir as fluid will drip out as you back pressure from the pistons. Followed average break in procedures recommended by several of the ceramic pad manufacturers without issue. Note - since the vehicle has plastic rear pistons, only metallic pads were recommended - would like to understand why.

Replaced the serp drive belt - I had been ignoring it ...I think it was original - this means I screwed up! Interestingly, it looked fine ...wow ...10 years and 120k miles ...no cracking anywhere I could find. It was Gates and was also made in USA ...it was quite a bit shorter than the Motorcraft that was on it due to stretching ...tight fit ...tip is to out it on all the pulleys except the top center non-drive pulley, including the tensioner pulley, THEN compress the tensioner and SLIP the belt over the top center pulley - it does not have a lip on it so is waaaay easier.

Well, hopes this helps somebody down the road.
 






Forgot ...Following pad installation, I used almost an entire quart of brake fluid ...old wasn't too bad with only a greenish cast, but it was definitely time!

Also didn't mention I lubed the guide pins on the front rotors with high temp caliper lubricant ....not wheel bearing grease. The Wagner pad box did NOT have this included ...they should have.
 






Glad to see you got the right parts, sounds like you did a thorough job. Also had the same issue with sticky front caliper pins, anti seize or conventional grease is a no-no. I don't believe there is any correlation between pad composition and piston material. A1 Cardone rebuilds most of the name brand calipers. If using semi-metallic pads with phenolic pistons were a problem, I'm certain they would have mentioned it on page 10. If you ever need to replace calipers, NAPA's Total Eclipse line is excellent and very reasonably priced with a lifetime warranty. NAPA also uses a rust protective coating unlike Wagner, Raybestos, etc. Benefit is NAPA stores are usually local for warranty and eliminates core shipping costs.
Since the vehicle has plastic rear pistons, only metallic pads were recommended - would like to understand why.

http://my.cardone.com/English/Club/Products/Brakes/Protech/Training/brake2.pdf

http://www.brakeandfrontend.com/Article/67940/napa_introduces_total_eclipse_brake_caliper.aspx
 






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