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Rear End->
  |_ Complete Rear End Assemblies->
    |_ Chassi Engineering Rear Ends
    |_ Competition Engineering Rear End
    |_ Currie Enterprises 9 Plus
    |_ Mark Williams Rear Ends
    |_ Moser Rear Assemblies
    |_ Strange Engineering Rear Ends
  |_ Complete Third Members
  |_ Custom Axles->
  |_ Posi Traction Units->
  |_ Rear End Covers->
  |_ Rear End Installation Kits->
  |_ Ring Gear Sets->
Roll Cages and Accessories->
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Striker Viper heads Return
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Tech Help
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Viper
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Wideband Monitoring Systems->
Wiring harness and Accessories->

Customers

Toby W.

John, Thanks again so much. You're truly awesome.
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William K.

You do outstanding work man. My whole crew is ready to see your work in action ;-)
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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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Tom R.

John--the 408 engine you built for me is outstanding. Feel free to give him my cell number and I'll happily give you a strong reference. Thank you...
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Chris B.

Chris B. won the late model feature easily Texas Motor Speedway.
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Michael W.

Michael W.

After getting all the compatible stuff shes a beast! Michael
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Bill S.

Bill S.

Thanks John, 426 Hemi stroker 588 https://www.youtube.com/watch?v=1dJdt0ZFzjU
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Robbie C.

Robbie C.

Great job all round !
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Marko T.

Marko T.

Hi John! Thanks again for the great service! Marko T. Finland
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Shaine D.

Wow! Thank you for that quick and informative response. Must be why you are always recommended. Shaine
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Ricky H.

Ricky H.

Thanks for everything John. The headers are great !
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Hannu O.

Hannu O.

thank you very much from Finland!
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Benny C.

Benny C.

Thanks for the Great Mopar Service !
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Dan B.

Dan B.

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

I've bought parts and dealt with vendors in my job every day for the last 15 years. I have never dealt with a vendor as helpful and punctual as you...
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Bob F.

Bob F.

Plymouth 426 Hemi
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Ossi L.

you come highly recommended to me by Finnish racers!
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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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Gary H.

Gary H.

John, Thanks a lot !
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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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Robert S.

Robert S.

426 Hemi Cuda
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Ricky R.

Ricky R.

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

Steve B.

Thanks for the help with my 426 stroker.
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Rob D.

John is a real awesome guy. i couldn't thank u enough for all the help over 7-8 years.
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Mike M.

John's very honest, something that's hard to find these days. This means he'll tell you the truth and you may not want to hear it. LOL. The best...
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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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