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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->
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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

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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Ricky H.

Ricky H.

Thanks for everything John. The headers are great !
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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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Phil S.

Phil S.

Great job creating this Dakota R/T Ground Affects Kit. Phil
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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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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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Pete L.

Pete L.

Mopar RB 440 Aluminum block with a Procharger. Makes 1600 HP!!
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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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Mitch C.

Awesome work! Glad I went with you guys! Anyone I know of that wants to build I'll send your way! Thanks John! Your the man!! Mitch
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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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Steven

Southeast Performance and John Mercedes have been "OUTSTANDING" to do business with. I couldn't be happier.
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David P.

David P.

Thanks for the brake lines !
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Robert S.

Robert S.

426 Hemi Cuda
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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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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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Maurice

Maurice

Maurice 73 Dodge Dart
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Buyer

Super guy to deal with! GREAT SERVICE!! GREAT PRICE!!
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Troy K.

Troy K.

Thanks for all your great help with my Viper.
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Chris B.

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

Steve B.

Thanks for the help with my 426 stroker.
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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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Bob F.

Bob F.

Plymouth 426 Hemi
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Billy W.

Billy W.

Dakota R/T 408
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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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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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