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Description
McLeod Soft Lok HCF Chevy 55-85 SB & All BB 0Bal 11inX1-1/8X10 Spline 168Soft Lok The McLeod Soft Lok assembly is the most widely used McLeod clutch assembly for drag racers, and is not recommended for street use. This unit is an NHRA and IHRA record holder. Low static pressure for light pedal effort and soft clutch engagement. Leave the starting line harder with less tire spin. Enough holding power for the entire run. Adjustable spring pressure and counter weights. Kit includes adjustable long style pressure plate,
Soft Lok - The McLeod Soft Lok assembly is the most widely used McLeod clutch assembly for drag racers, and is not recommended for street use. This unit is an NHRA and IHRA record holder. Low static pressure for light pedal effort and soft clutch engagement. Leave the starting line harder with less tire spin. Enough holding power for the entire run. Adjustable spring pressure and counter weights. Kit includes adjustable long style pressure plate, sintered iron 5135 compound disc and billet aluminum flywheel. SFI Rated and made in the USA!
- • Low Static Pressure.
This Part Fits:
Year Make Model Submodel 1957-1973 Chevrolet Bel Air Base 1958-1972 Chevrolet Biscayne Base 1969-1974 Chevrolet Blazer Base 1969-1972 Chevrolet Brookwood Base 1978-1980 Chevrolet C10 Big Ten 1975-1981 Chevrolet C10 Cheyenne 1981-1985 Chevrolet C10 Custom 1975-1980 Chevrolet C10 Custom Deluxe 1981 Chevrolet C10 Deluxe 1975-1985 Chevrolet C10 Scottsdale 1975-1985 Chevrolet C10 Silverado 1967-1974 Chevrolet C10 Suburban Base 1981-1984 Chevrolet C10 Suburban Custom 1975-1980 Chevrolet C10 Suburban Custom Deluxe 1981 Chevrolet C10 Suburban Deluxe 1975-1980,1982,1984 Chevrolet C10 Suburban Scottsdale 1975-1980,1982-1984 Chevrolet C10 Suburban Silverado 1975-1981 Chevrolet C20 Cheyenne 1981-1985 Chevrolet C20 Custom 1975-1980 Chevrolet C20 Custom Deluxe 1981 Chevrolet C20 Deluxe 1975-1985 Chevrolet C20 Scottsdale 1975-1985 Chevrolet C20 Silverado 1967-1974 Chevrolet C20 Suburban Base 1981-1984 Chevrolet C20 Suburban Custom 1975-1980 Chevrolet C20 Suburban Custom Deluxe 1981 Chevrolet C20 Suburban Deluxe 1975-1980,1982,1984 Chevrolet C20 Suburban Scottsdale 1975-1977,1979-1980,1982-1984 Chevrolet C20 Suburban Silverado 1975-1981 Chevrolet C30 Cheyenne 1981-1985 Chevrolet C30 Custom 1975-1980 Chevrolet C30 Custom Deluxe 1981 Chevrolet C30 Deluxe 1975-1985 Chevrolet C30 Scottsdale 1975-1985 Chevrolet C30 Silverado 1967,1969-1980 Chevrolet Camaro Base 1979-1985 Chevrolet Camaro Berlinetta 1985 Chevrolet Camaro Iroc-Z 1973,1975-1978 Chevrolet Camaro LT 1976-1978 Chevrolet Camaro LT Rally Sport 1976-1980 Chevrolet Camaro Rally Sport 1967,1969-1973,1975 Chevrolet Camaro RS 1981-1985 Chevrolet Camaro Sport 1967-1972 Chevrolet Camaro SS 1967-1974,1977-1985 Chevrolet Camaro Z28 1982 Chevrolet Camaro Z28 Indianapolis 500 Pace Car 1966-1972 Chevrolet Caprice Base 1975 Chevrolet Chevelle Malibu Classic 1963-1967 Chevrolet Chevy II Base 1957-1961,1965-1974,1977-1981,1984-1985 Chevrolet Corvette Base 1978 Chevrolet Corvette Indianapolis 500 Pace Car 1978 Chevrolet Corvette Silver Anniversary Edition 1975-1976 Chevrolet Corvette Stingray 1958 Chevrolet Del Ray Base 1959-1960,1964-1981 Chevrolet El Camino Base 1975-1977 Chevrolet El Camino Classic 1977-1978,1981 Chevrolet El Camino Conquista 1979-1981 Chevrolet El Camino Royal Knight 1975-1981 Chevrolet El Camino SS 1983 Chevrolet G10 Base 1975-1985 Chevrolet G10 Beauville 1981-1984 Chevrolet G10 Bonaventure 1975-1985 Chevrolet G10 Chevy Van 1975-1985 Chevrolet G10 Sportvan 1975-1985 Chevrolet G20 Beauville 1983-1984 Chevrolet G20 Bonaventure 1975-1985 Chevrolet G20 Chevy Van 1978-1981 Chevrolet G20 Nomad 1975-1985 Chevrolet G20 Sportvan 1967-1974 Chevrolet G20 Van Base 1975-1985 Chevrolet G30 Beauville 1983-1984 Chevrolet G30 Bonaventure 1975-1985 Chevrolet G30 Chevy Van 1975-1985 Chevrolet G30 Hi-Cube 1975-1985 Chevrolet G30 Sportvan 1958-1973 Chevrolet Impala Base 1975-1981 Chevrolet K10 Cheyenne 1981-1985 Chevrolet K10 Custom 1975-1980 Chevrolet K10 Custom Deluxe 1981 Chevrolet K10 Deluxe 1975-1985 Chevrolet K10 Scottsdale 1975-1985 Chevrolet K10 Silverado 1967-1974 Chevrolet K10 Suburban Base 1981-1984 Chevrolet K10 Suburban Custom 1975-1980 Chevrolet K10 Suburban Custom Deluxe 1981 Chevrolet K10 Suburban Deluxe 1975-1980,1982,1984 Chevrolet K10 Suburban Scottsdale 1975-1977,1979-1980,1982-1983 Chevrolet K10 Suburban Silverado 1975-1981 Chevrolet K20 Cheyenne 1981-1985 Chevrolet K20 Custom 1975-1980 Chevrolet K20 Custom Deluxe 1981 Chevrolet K20 Deluxe 1975-1985 Chevrolet K20 Scottsdale 1975-1983,1985 Chevrolet K20 Silverado 1967-1974 Chevrolet K20 Suburban Base 1981-1984 Chevrolet K20 Suburban Custom 1975-1980 Chevrolet K20 Suburban Custom Deluxe 1981 Chevrolet K20 Suburban Deluxe 1975-1980,1982,1984 Chevrolet K20 Suburban Scottsdale 1975-1977,1979-1980,1982-1983 Chevrolet K20 Suburban Silverado 1977-1981 Chevrolet K30 Cheyenne 1981-1985 Chevrolet K30 Custom 1977-1980 Chevrolet K30 Custom Deluxe 1981 Chevrolet K30 Deluxe 1977-1985 Chevrolet K30 Scottsdale 1977-1985 Chevrolet K30 Silverado 1976 Chevrolet K5 Blazer Base 1975-1980 Chevrolet K5 Blazer Cheyenne 1981-1985 Chevrolet K5 Blazer Custom 1975,1977-1980 Chevrolet K5 Blazer Custom Deluxe 1981 Chevrolet K5 Blazer Deluxe 1984 Chevrolet K5 Blazer Scottsdale 1978,1980-1985 Chevrolet K5 Blazer Silverado 1969-1971 Chevrolet Kingswood Base 1978-1981 Chevrolet Malibu Base 1978-1981 Chevrolet Malibu Classic 1978-1980 Chevrolet Malibu Classic Estate 1978-1981 Chevrolet Malibu Classic Landau 1979-1980 Chevrolet Malibu Classic Sport 1979-1980 Chevrolet Malibu Estate 1979 Chevrolet Malibu Landau 1979 Chevrolet Malibu Police 1979-1980 Chevrolet Malibu Sport 1970-1974,1979,1981 Chevrolet Monte Carlo Base 1976,1978-1979,1981 Chevrolet Monte Carlo Landau 1975-1977 Chevrolet Monte Carlo S 1978 Chevrolet Monte Carlo Sport 1976-1979 Chevrolet Monza 2+2 1978-1979 Chevrolet Monza 2+2 Sport 1976-1979 Chevrolet Monza 2+2 Spyder 1976,1978-1979 Chevrolet Monza Base 1977 Chevrolet Monza Mirage 1978-1979 Chevrolet Monza S 1978 Chevrolet Monza Sport 1977 Chevrolet Monza Towne Coupe 1977 Chevrolet Monza Towne Coupe Cabriolet 1977 Chevrolet Monza Towne Coupe Sport 1958-1961 Chevrolet Nomad Base 1969-1979 Chevrolet Nova Base 1976-1977 Chevrolet Nova Concours 1975,1978-1979 Chevrolet Nova Custom 1975 Chevrolet Nova LN 1975-1978 Chevrolet Nova Police 1977-1979 Chevrolet Nova Rally 1976 Chevrolet Nova SS 1957 Chevrolet One-Fifty Series Base 1975,1977-1979 Chevrolet P10 Base 1975,1977-1979 Chevrolet P10 Step-Van 1975-1985 Chevrolet P20 Base 1975-1985 Chevrolet P20 Step-Van 1975-1985 Chevrolet P30 Base 1975-1985 Chevrolet P30 Step-Van 1957-1958 Chevrolet Sedan Delivery Base 1969-1971 Chevrolet Townsman Base 1957-1958 Chevrolet Truck 3200 1957-1958 Chevrolet Truck 3400 1957-1958 Chevrolet Truck 3500 1957-1958 Chevrolet Truck 3600 1957-1958 Chevrolet Truck 3700 1957-1958 Chevrolet Truck 3800 1957 Chevrolet Two-Ten Series Base 1957 Chevrolet Two-Ten Series Del Ray 1958 Chevrolet Yeoman Base
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4.7 ★★★★★
Based on 357 reviews
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Product Reviews
★★★★★ 5
Top notch tire sealant!
Size: 20oz
Really good sealant that lives up to it's description. Very easy to use and definitely delivers. Have used it on several Lazer Z mowers and works as advertised! Definitely would recommend this one!
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Reviewed in the United States on April 26, 2026
★★★★★ 5
This stuff just works! Very impressed. If you have a slow leak, get this!
Size: 20oz
This is the second time I've bought this product. I bought one initially to test it out and I was very impressed! I had put some used tires on some used rims for my side by side and I had a couple of them leaking slowly from the side of the rim. I put this stuff in, following the directions and have no more leaks! It's been about a week with the first one, and zero loss in air pressure. I took my side by side out on the trails and thrashed around a bit, still no leaks! This stuff is legit! It comes with a valve removal tool and red valve stem covers to show you which tires you've added this too. Very easy to use, no issues whatsoever. Saves you money having to take your tires somewhere to have them look at them.
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Reviewed in the United States on September 15, 2025
★★★★★ 5
This stuff worked better than I thought it would
Size: 40oz
As my title says, this stuff worked better than I thought it would. In fact it worked so well today I will be ordering more.
I say today because how can you tell if something like this is actually working... never getting a flat for years? In other words, if it fixes a flat before your eyes it works, otherwise you really don't know.
See I had a lawn mower tractor that developed a real bad tire leak a couple of days ago. The way it happened was I cut a Russian Olive tree down, if you know what one of these trees are like, you already know why I got such a bad leak. These darn things have thorns that can get to be almost as big around as a pencil, and are just as sharp as a needle. Moreover, these spikes as I call them, can get to be 3" to 4" long. In short, if you run over one you will have a flat tire, period. That is unless you have this stuff inside the tire already.
To make matters worse, if you run over a branch from this tree, you won't only get one or two thorns/spikes stuck in your tire, because as you drive the branch bends easily (only the spike are ridged), so before you know it you will end up with a half dozen of these spikes all the way around your tire, as if the whole tire has a new tread made up of a Russian Olive tree branch. Trust me on this, it will happen just like this.
After pulling a half dozen 2" to 4" inch spikes out of the tire, I knew if I took it to a shop they would require me to put a tube in. With this inflation that isn't supposed to be an inflation going on, I'm sure it has made tire tubes today cost almost as much as the whole tire cost me just a couple of years ago. So I thought I'd put this product to a real test... I already have some in my John Deere 2305 tractor.
Honestly, it shocked me how quick it worked. It worked so fast I didn't even need to add anymore air to the tire, because all the holes were shut. Pretty amazing stuff if you ask me!
I followed the directions, they were easy to follow and the process was easy too. I removed the valve stem, put in 5 ounces of the solution, then put the valve stem back in, aired up the tire and it was instantly fixed... amazing, especially considering why the tire was flat... I should have taken a pic of the spikes.
I did roll the tire around a bit, then mounted the tire back on the tractor and went right over and mowed my elderly neighbors lawn, so it got plenty of rotation time. That was about 4 hours ago and the tire is still rock hard.
Like I said, I'm ordering more because after seeing this everything we have that runs slow will have this stuff in the tires!
Oh, one other thing. The fix-it flat stuff in a spray can, DO NOT USE IT for applications like this! Because that stuff if left inside will actually glue your tire to the rim. Tires have been ruined trying to pry them away from the rim after putting in fix-a-flat, or whatever that crap is called. Sadly this "TireJect" is not recommended for high speed travel, it will through your tire out of balance. So use the fix-flat stuff in an emergency, carry one in your car just in case. Just make sure once you get the tire fixed wash the tire out real good before remounting it.
I have never written such a long review in my life, but if you got through it I hope it helped. It's not often a product lives up to it's claims today, but this one in my opinion surpasses it, so I felt the need to say something. Besides, the warning about the Russian Olive tree just may save someone a lot of frustrations.
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Reviewed in the United States on May 24, 2023
★★★★★ 5
It Really Works!
Size: 40oz
Excellent product-stops leaks!!
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Reviewed in the United States on April 25, 2026
★★★★★ 4
SEEMS TO WORK WELL... IF YOU CAN GET IT INTO THE TIRE
Size: 10oz, Size: 10oz
The front 11x6 tires of our Scag ZTR mower leaked air around the bead (a common problem). I bought one 10-oz bag to treat them, for about $22.
No matter how much I squeezed and squeezed, it would not dispense product. Turns out a small plug of "something" had clogged the hole in the cap (see photo). This might not be a problem for the syringe version but it sure was with the bag.
After discarding about an ounce of product and clearing the hole with a finishing nail, I was able to treat both tires. I drove the mower for ~15 minutes. Four days later they seem to be holding air. Previously, they went flat in two days.
So it seems to be working, but I have to drop a star for a flawed delivery system. If the tires start going flat again within an unreasonable period of time I'll come back and update this report.
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Reviewed in the United States on April 9, 2026