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Description
2004-2008 Ford & Lincoln F150, Mark LT 2 & 4 Wheel Drive Rear Leaf Spring - 3 Leaves - 43-1679*Diagram Spring May Differ From Actual Spring* Number of Leaves 3 (2 1) Leaf Spring Width 3" A Leaf Spring Length: 25 5 8" B Leaf Spring Length: 31 3 8" C Leaf Spring Arch: 7 1 4" D Spring Pack Thickness: 1 5 8" Leaf Spring Capacity: 1,500 lbs. Leaf Spring OEM Numbers: 6L3Z5560RD and 6L345560RF Leaf Spring Eye Bushings: Front RB 275 Rear RB 276 Includes Front and Rear Eye Bushings Leaf Spring Material: 2 380 2ND 1 662 Location Rear 2 Center Bolts New
- *Diagram Spring May Differ From Actual Spring*
- Number of Leaves - 3 (2/1)
- Leaf Spring Width - 3"
- A - Leaf Spring Length: 25-5/8"
- B - Leaf Spring Length: 31-3/8"
- C - Leaf Spring Arch: 7-1/4"
- D - Spring Pack Thickness: 1-5/8"
- Leaf Spring Capacity: 1,500 lbs.
- Leaf Spring OEM Numbers: 6L3Z5560RD and 6L345560RF
- Leaf Spring Eye Bushings: Front RB-275 / Rear RB-276
- Includes Front and Rear Eye Bushings
- Leaf Spring Material: 2/380 2ND 1/662
- Location - Rear
- 2 Center Bolts
- New Body Style
Verify the OEM part number and measurements to confirm compatibility before purchasing. Need help? Visit: How to Identify a Leaf Spring.
Leaf spring 43-1679 is the rear leaf spring on 2004-2008 Ford F150 2 wheel and 4 wheel drive trucks. Also fits Lincoln Mark LT. The rear spring is 3" wide, is a 3 (2/1) leaf spring and the capacity is 1,500 lbs. The OEM numbers are 6L3Z5560RD and 6L345560RF.
Models And Year Ranges:
Fits: 2004-2008 Rear Ford F150 (2WD And 4WD)
Fits: 2006-2008 Rear Lincoln Mark LT (2WD And 4WD)
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4.8 ★★★★★
Based on 224 reviews
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Product Reviews
★★★★★ 5
Absolutely work!
These are absolutely fantastic. Bygone are the days of sucking on some sugary sweet Candy. Xylo melts stick as they say they do. I have found that they don't stick to artificial teeth as well. They last for hours they're comfortable. The mint ones aren't overpowering. These are a dry mouth blessing. For sure use them at night and during the day.
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Reviewed in the United States on May 16, 2025
★★★★★ 5
Invaluable sleep/ dry mouth aid
Cannot live even one night without these Xylimelts. Taste great. Stick well to mouth. Remember: poisonous to dogs. Now we have a dog so I no longer buy the bottles of loose melts as I can spill in middle of night and lose track. Extremely nerve wracking. Using the sheets of melts which you punch out one at a time. Easier to insure dog’s safety.
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Reviewed in the United States on June 25, 2025
★★★★★ 5
They may have saved my life!
These are fantastic for people with dry mouth! They have been a lifesaver for me. I HIGHLY recommend them to everyone! I carry them in my bag as well. Thanks to the one who invented them. I feel normal again!!! Easy to pop in mouth and they last overnight too.
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Reviewed in the United States on April 24, 2025
★★★★★ 5
Wow!!!
Size: 80 ea
XyliMelts were recommended by my new dental hygienist who said she was told about them at a dental conference by a well known hygienist "guru".
I ordered them at around four in the morning because I was up as usual because if my chronic pain syndrome and the dry mouth caused by my pain pills.
I got them quickly via Amazon and have not been up again this time of night due to the dry mouth. Now I'm up due to the pain but can fall asleep quickly because of the XyliMelts, they work great!
I only use one at a time and it lasts around four hours and I put in another one and go right back to sleep. It's so easy to push the little tab out of the cellophane and just hold it on my gum for ten seconds and voila! No more dry mouth. I used to wake up with my mouth so dry there was no saliva at all in my mouth and parched was an understatement, my mouth felt like sandpaper!
Now it's always nice and moist and the taste is extremely pleasant (I didn't get the mint). I had to have two teeth extracted four days before Christmas and my dentist said it was due to the dry mouth and that he sees patterns like this in patients with dry mouth and I'd probably lose more teeth unless I came in for cleanings and check ups three times a year instead of two and we kept a really close eye on my teeth.
I'd been using Biotene gel but it wasn't keeping my mouth moist long enough. I'm extremely happy with XyliMelt! I'm also 100% sure I won't be losing any more teeth due to my night time dry mouth because it's a thing of the past!
Thanks to amazon prime shipping I got my XyliMelts very quickly, and my nighttime dry mouth is a thing of the past!
I know they don't claim to stop cavities but without the dry mouth and my new commitment to see my dentist three times a year and to always always brush my teeth before I fall asleep (no more Rolos in bed after I've done my final teeth brushing), I'm confident my dentist won't see a tooth loss pattern in my mouth.
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Reviewed in the United States on February 14, 2014
★★★★★ 5
Dry Mouth Tabs, Sugar Free
Size: 80 ea
Always have these in my purse and beside my bed. Mouth is dry and these help to keep it moisturized. Lasts several hours, nice taste, sugar free. I feel saw to use at night, sticks to my mouth wherever I place it. I have never had it slip out of my mouth at night and choke me. My dentist recommended them.
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Reviewed in the United States on September 29, 2025