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  |_ Guideplates->
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    |_ Yella Terra Rocker Arms
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Customers

Dan B.

Dan B.

Dakota R/T 408, Thanks for everything! Dan https://www.youtube.com/watch?v=wZekmXKYXA4
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Taylor M.

Taylor M.

Thanks a lot John !
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Kris L.

John, Sitting in the car with a big smile on my face. Thanks for the quality brand products and the great price. Cheers Kris
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Kayden G.

Kayden G.

Well your service is amazing. Never had better from any company I've ordered from! Kayden
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Ken L.

John, Thanks for all your help. I wish I had known about you before I ordered the rest of my stuff! Thanks, Ken
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Ricky J.

Thanks for all the info, you have been a great help and a credit to your company.
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Clay B.

Clay B.

Thanks for everything !
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Steve V.

Steve V.

You are the only guy who I trust to do the most important thing I'll ever do to my Roadrunner, a car that means more to me than any inanimate object...
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James G.

James G.

5.80 in 1/4 mile @ 244 mph & 3.76 @ 197 in the 1/8 mile
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Steve B.

Steve B.

Thanks for the help with my 426 stroker.
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Carl E.

Carl E.

Dodge SRT-10 Viper
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David A.

David A.

Thanks for everything, David
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David P.

David P.

Thanks for the brake lines !
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Brian A.

Brian A.

The 408 engine runs strong, put on dyno 405hp with 415tq N/A not shabby.. also was on 22" wheels with those numbers est. 500-525 @ crank. Thanks so...
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Jared B.

John, You Rock! Thanks again for the great deals and speedy service. Really appreciate it. Jared Dakota R/T
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Jim A.

Jim A.

Two year champion in modified tractor pulling classes named "Watch This Trick". Chrysler 426 Hemi. Thanks for the Great Service!
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Craig W.

Craig W.

Thanks John, So far 8 races and 8 top Five!!
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Robert M.

John, Thank you for all you have done, From your previous email responses, you seem to be old school, a man of his word. Thanks again John for...
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Felix C.

How awesome is this! This superb service is exactly on point w/what everyone have raved about. Thank you, Felix
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Ricky R.

Ricky R.

1937 Chevy Legends Race Car, Thanks for everything!
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Jason B.

Thanks John.. you have been awesome to work with and I am REALLY looking forward to driving my SRT-10 again :) Jason
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Maurice

Maurice

Maurice 73 Dodge Dart
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Matt C.

Thanks again John, someone who’s willing to help and not just sell parts. So, looks like you’ll be listed on my referrals. Keep in touch. Thanks...
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Bob F.

Bob F.

Plymouth 426 Hemi
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Colton H.

Colton H.

"Johns the man, bought a 410 package from him years ago after I got back from overseas. The caveat I gave John was that it had to pass Californian...
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T&D Gen III Hemi 5.7, 6.1 Adjustable rocker arms

Features & Benefits of T&D shaft-mount roller rocker systems T&D rocker arms have an oil passage (see diagram) built into most rocker arms to channel pressurized oil from the pushrod cup to the shaft bearings and then on to the roller tip. T&D's 7/16” adjuster screw and heat-treated alloy steel jam nut are the largest in the industry, giving more thread contact area to positively secure lash settings. Each adjuster is broached for a big 3/16" socket to eliminate twisted hex keys. T&D’s larger diameter shafts are made from 4130 steel, deep case hardened and tempered for maximum wear resistance and strength. T&D aluminum rocker bodies use 2024 aluminum made to our specifications for improved tensile and yield strength, and increased notch sensitivity, fatigue resistance, strength at elevated temperatures and chemical resistance. T&D has gone to great lengths to find the right material to use in its steel rocker bodies, which remains proprietary. Extensive R&D, and constant hands-on usage, has given T&D a distinct advantage in the area of steel rocker development. Presently, many of the steel rockers are within a few grams of the aluminum ones they replace. Every T&D rocker system is designed with racers and ease of installation and maintenance in mind. Most applications require no head modifications, no machining of any kind. If machining is required, full instructions are included. All hardware and shims necessary to attach a rocker system are included. On models with individual shafts, individual rockers can be removed quickly for valve spring service. Most T&D rocker systems are rebuildable. T&D tests every rocker arm against the competition for weight, mass moment of inertia, deflection, hardness and cycle durability. Through this testing, T&D rockers have been continuously improved to be the lightest, most efficient, and most durable rocker arms on the market. Through rigorous on-track testing, T&D rocker arms have survived the torture tests, in all forms of racing.



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