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Description
1963-1977 Chevy Corvette Rear Leaf Spring 21-307Number of Leaves 9 (6 3) Leaf Spring Width 2 1 4" A Leaf Spring Length: 23 3 16" B Leaf Spring Length: 24 5 16" Leaf Spring Arch: 10 1 4" C Leaf Spring Pack Thickness: 2 1 8" Leaf Spring Capacity: 1,360 lbs. Leaf Spring OEM Number: 3850837 Leaf Spring Eye Bushings: Leaf Spring Material: 3 214 3 194 2ND 3 194 Location Rear Verify the OEM part number and dimensions before purchase. Match with your existing spring to the manufacturer part number. Need
- Number of Leaves - 9 (6/3)
- Leaf Spring Width - 2-1/4"
- A - Leaf Spring Length: 23-3/16"
- B - Leaf Spring Length: 24-5/16"
- - Leaf Spring Arch: 10-1/4"
- C - Leaf Spring Pack Thickness: 2-1/8"
- Leaf Spring Capacity: 1,360 lbs.
- Leaf Spring OEM Number: 3850837
- Leaf Spring Eye Bushings:
- Leaf Spring Material: 3/214 3/194 2ND 3/194
- Location - Rear
Verify the OEM part number and dimensions before purchase. Match with your existing spring to the manufacturer part number. Need help? Visit: How to Identify a Leaf Spring.
Leaf spring 21-307 is the rear leaf spring on a 1963-1977 Chevy Corvette. The rear spring is 2-1/4" wide, is a 9 (6/3) leaf spring and the capacity is 1,360 lbs. The OEM part number is 3850837.
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4.1 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 3
Very very hard ball
Color: Orange and Yellow
These balls are nice, but a little bit harder than I thought they would be
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 4, 2025
★★★★★ 5
The Chuck Norris of Dog Toys
Color: Orange
If dog toys were superheroes, the Nevperish K9 Training Ball would be Batman—indestructible, effective, and always ready to save the day. This thing flies. I’m not saying I could take out a rogue squirrel in a single throw, but… let’s just say those little guys know to keep their distance now.
My 100lb German Shepherd, who we affectionately call "The Toy Terminator," has destroyed every squeaky, chewy, or bouncy thing in her path. But this? This glorious, rope-swinging masterpiece? She’s met her match. It’s like her teeth have signed a peace treaty with this toy.
Speaking of flying, if you have neighbors with a backyard that’s less than a football field away, be prepared for some fence-hopping cardio. I’ve had more awkward encounters with my neighbors than I care to admit. Thankfully, my shepherd has learned the art of the double hop—over their fence and back—like some four-legged ninja gymnast. Bonus: great entertainment for the neighbors.
This toy isn’t just a ball on a rope; it’s a lifestyle. Open fields? Perfect. Tug-of-war? Immaculate. Backyard fetch? A cinematic masterpiece. It’s basically the Swiss Army knife of dog toys, minus the danger of accidental stabbing.
Pro tip: Don’t underestimate how far this thing can go. My first throw ended with the ball in orbit—or maybe it just bounced off a satellite. Either way, my dog was thrilled, and now I need an arm warm-up routine before playtime.
So, if you want a toy that’ll outlast your dog’s dental fury and make fetch sessions the stuff of legend, this is it. 10/10, would absolutely get weird looks from neighbors again.
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Reviewed in the United States on January 3, 2025
★★★★★ 5
Great buy
Color: Orange
My did loves this ball
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Reviewed in the United States on May 27, 2026
★★★★★ 5
One Tough Ball!
Color: Blue
Our dogs are loving this ball. Our 1 yr old hound is a world-class chewer and he can't make a dent in this ball. The interactive buzzing and bouncing keeps them entertained for long durations. It's a mite noisy but the barking from the 1 yr old is much louder, lol. Even turned off, they like playing with it and chewing on it. Based on the tough construction, we think it will last much longer than traditional chew balls.
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Reviewed in the United States on March 22, 2026
★★★★★ 5
My puppy’s favorite
Color: Orange
Great quality and built to last. My dog really enjoys playing with it and stays entertained for quite a while. The material is strong yet safe, and the included drawstring bag is a convenient extra for easy storage.
Is colorful and my become my puppy’s favorite.
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Reviewed in the United States on March 1, 2026
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