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Customers

Barbara H.

John, Thanks again for making Colton's dream come true! The truck is in the body shop, the cowl hood arrived and the new 408 engine you built is...
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Matt G.

I just want to say thanks for all that you have done for me, because over the weekend I was the fastest R/T out there with no power-adders and still...
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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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Billy W.

Billy W.

Dakota R/T 408
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Henry T.

Henry T.

HEY! Everything is installed and car runs AWESOME! Thanks for everything, Thanks again. Henry 2000 Dodge Viper R/T 10
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Toby W.

John, Thanks again so much. You're truly awesome.
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Benny C.

Benny C.

Thanks for the Great Mopar Service !
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Derek B.

Derek B.

Great Personalized service. Derek
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Troy K.

Troy K.

Dodge Viper
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Buyer

Super guy to deal with! GREAT SERVICE!! GREAT PRICE!!
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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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David A.

David A.

Thanks for everything, David
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Robert S.

Robert S.

Great parts and service! Robert
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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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Alan P.

First off, I just have to say that I have never came across a more stand-up guy that takes his time to connect with his customers and have the...
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Steve F.

Thank You for all your help and hookups with the parts - sounds like a lot of people appreciate it, I'm one of those people. - Steve
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Clay B.

Clay B.

Thanks for everything !
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Kyle M.

Kyle M.

John, I am very pleased with the brake conversion. The kit was very easy to install and I didn't have any problems and look very good as...
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Dan F.

Dan F.

John, The truck is not done but i drive it daily and it runs good now. Eventually id like to do the rear brakes! Thanks
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Brian R.

John!! Got my Viper back together, dyno tuned. Super happy with the results of your work!! Gained 112 RWHP and 107RWTQ!!!!! More at the crank. Sounds...
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Ricky H.

Ricky H.

Thanks for everything John. The headers are great !
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Harold R.

John, Thanks for the great customer service! Harold
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Gary H.

Gary H.

John, Thanks a lot !
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Phil S.

Phil S.

Great job creating this Dakota R/T Ground Affects Kit. Phil
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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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Mark Williams Rear End Assemblies

Ford 9"- The Ford 9" is definitely the most popular of the rear ends in drag racing. It offers good strength characteristics and the largest variety of gear choices. The thirdmember type center section allows a racer to have multiple gear ratios available and is much easier to change than a rear loading type rear end. Work can be done on the rear while it is out of the car without major disassembly. With a full-floater style rear the brakes do not even have to be removed to remove the thirdmember. There are basically two negatives to the Ford 9". First it weighs about 10 lbs. more than a comparable 12 bolt. Second, because of the larger pinion offset the gears tend to be about 5% less efficient, although this can vary depending on gear ratio.

Mark Williams 11"- The Mark williams 11" is by far the strongest of the three types. The 11" system runs virtually maintenance free through entire race seasons. With dimensions and offsets very similar to the 9" Ford, very little modifications are necessary to change over to the 11". The downside to the 11" is that it weighs about 75 Lbs. more than a comparable 9" Ford. Gear changes can be rather difficult also. It is recommended that the 11" be run in situations where gear changes are not frequent. The cost of replacing worn gears and the dependability of the 11" make up for its downsides.

GM 12 Bolt - The lightest of the three, the 12 bolt offers a large selection of gear ratios (although not as large as the 9") and good dependability. 12 bolt modular housings are also narrower than a 9" or 11" at 14" wide instead of 16" wide. The 12 bolt is mainly run in situations where weight and efficiency are major factors, such as Comp and Comp Eliminator. The disadvantage to the 12 bolt is that gear changes can be difficult.




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