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Description
Vintage - Metal Unpainted Synchronizer Repair Kit - 640397KOverview: Synchronizer Repair Kit Direct Replacement Crown supports its entire line with a 12 month warranty Application: Year Make Model Submodel Engine Size 1959 1966 Jeep CJ3 1959 1971 Jeep CJ5 1959 1971 Jeep CJ6 1949 1958 Jeep Willys CJ 3 1955 1958 Jeep Willys CJ 5 1956 1958 Jeep Willys CJ 6 1946 1949 Jeep Willys CJ 2 1945 Jeep Willys 1957 1964 Jeep FC150 1957 1964 Jeep FC170 1966 1971 Jeep Commando Specs: Additional Information: SKU Number :
Overview:
Synchronizer Repair Kit- Direct Replacement
- Crown supports its entire line with a 12-month warranty
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1959 - 1966 | Jeep | CJ3 | ||
| 1959 - 1971 | Jeep | CJ5 | ||
| 1959 - 1971 | Jeep | CJ6 | ||
| 1949 - 1958 | Jeep | Willys | CJ-3 | |
| 1955 - 1958 | Jeep | Willys | CJ-5 | |
| 1956 - 1958 | Jeep | Willys | CJ-6 | |
| 1946 - 1949 | Jeep | Willys | CJ-2 | |
| 1945 | Jeep | Willys | ||
| 1957 - 1964 | Jeep | FC150 | ||
| 1957 - 1964 | Jeep | FC170 | ||
| 1966 - 1971 | Jeep | Commando |
Specs:
Additional Information:
| SKU Number : | 640397K |
|---|---|
| Brand : | Crown Vintage |
| UPC : | 848399077865 |
| Part Type : | Synchronizer Repair Kit |
| Dimension : | 3.25(L) X 3.25(W) X 1.25(H) |
| Weight : | 0.40 lbs. |
| Color : | Unpainted |
| Material/Finish : | Metal |
| Sold AS : | Kit |
|---|---|
| Quantity Required : | 1 |
| Warranty : | 12 Month |
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.
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4.3 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 5
Fixes flats and old tires like a charm
Style: 1 gal
This stuff is awesome. If you have tractor tires, ATV tires, bike, tires, hell, any tires that hold air. This stuff is awesome. Awesome. Awesome. It does not work for highway vehicles, i.e. Cars and truck trucks. But anything else it’s great. Dollies, air compressors, wheelbarrows, the stuff is awesome dude.
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Reviewed in the United States on April 5, 2026
★★★★★ 5
slime is and has always been amazing for bike tires and other small pneumatic tires
Style: 1 gal
this is a great value, I have been using slime in my tubes of my bikes and a small inflatable pneumatic tires for probably 30 years, and I can say slime has only improved, and it works fantastic, this is a very good way to save money, and it works great on goat heads and several other ways your tires can get punctured, I still always recommend carrying a small air compressor or pump, but for the price point you just cannot beat slime, every bike shop should always carry this.
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Reviewed in the United States on April 18, 2026
★★★★★ 3
They need to find a better way to ship it
Style: 1 gal
What was left in the bottle worked great. However, the cap was off of the jug when I opened the package. Ididn't have enough for the other tires.
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Reviewed in the United States on March 19, 2026
★★★★★ 5
TireJect Product Featured on Youtube Channel "sixtyfiveford" Works Fantastic!
Size: 8oz MTB Tire Sealant Kit, Size: 8oz MTB Tire Sealant Kit
I recently had an opportunity to work on an old Troy-Bilt Snow Blower with a Carlisle Stud Bias Tire - 4.80-8 4 that had a continual leak and would not hold pressure for more than a day. After investigation, I discovered that it "Champagne" sized bubbles coming from an area on the sidewall that I circled in yellow "China" marker. Because of the size of the tire, I decided to purchase the "TireJect Mountain Bike (MTB) Tire Sealant Kit because I didn't require a lot of material to seal the tire. The TireJect Mountain Bike (MTB) Tire Sealant Kit came with an single 8oz container and I used 4 of those 8oz's in this single tire. The TireJect material sealed up the area beautifully. After the sealant cured, I was able to pump up the tire to 15PSI and it has held it's pressure for more than a week now. You can see from the photos, that the sidewalls in that yellow circled area were actually cracked (probably due to the tire sitting flat for more than a year). I highly recommend this product over previous products I have used in the past (Slime).
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Reviewed in the United States on October 3, 2025
★★★★★ 5
Great Product
Size: 8oz MTB Tire Sealant Kit
This is unbelievable. It works better than any similar product on the market.
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Reviewed in the United States on November 4, 2025