m menu image  m home

Product List

A A New Disc Brake Conversion
A Chrysler 426 and 440 Blocks
A Mopar "Cast Iron" Race Blocks
A Mopar News
A New Mopar B/RB Windage Tray
A New Mopar SB Cylinder Head
A New Trick Flow Mopar Head
Air Conditioning Custom Kits->
Automotive and Marine Covers
Brakes->
Carburetors->
Chrome Accessories->
Chute Kits->
Clutches->
Cold Air Kits->
Custom Hoods->
Custom Parts Development->
Cylinder Head Porting->
Electric Cooling Fans->
Electronics and Delay Boxes->
Engine Parts->
Engines->
Exhaust Components->
Exterior Vehicle Components->
Fasteners->
Fire Equipment->
Floor Mats->
Fuel Injection Systems
Fuel System Components->
Gaskets->
Gauges->
Gear Venders Overdrive Units
Ignition Components->
Lift Kits->
Lowering Kits->
Nitrous Kits->
Race Car Bodies->
Race Wear and Accessories->
Radiators and Components->
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
  |_ Custom Axles->
  |_ Posi Traction Units->
  |_ Rear End Covers->
  |_ Rear End Installation Kits->
  |_ Ring Gear Sets->
Roll Cages and Accessories->
Seats and Custom Interiors->
Shocks->
Spark Plugs->
SuperChargers->
Suspension Components->
Tech Help
Throttle Bodies->
Tires->
Traction Components->
Transmission Components->
Tuning and Controllers->
Turbocharging->
Valvetrain Components->
Viper
Water Pumps->
Wheels->
Wideband Monitoring Systems->
Wiring harness and Accessories->

Customers

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
Read More ->


Michael W.

Michael W.

After getting all the compatible stuff shes a beast! Michael
Read More ->


Robert S.

Robert S.

426 Hemi Cuda
Read More ->


Kayden G.

Well John, your service is amazing if you want my opinion. Never had better from any company I've ordered from. Thanks, Kayden
Read More ->


Buyer

Super guy to deal with! GREAT SERVICE!! GREAT PRICE!!
Read More ->


Steve B.

Steve B.

Thanks for the help with my 426 stroker.
Read More ->


Troy K.

Troy K.

Dodge Viper
Read More ->


David P.

David P.

Thanks for the brake lines !
Read More ->


Derek B.

Derek B.

Great Personalized service. Derek
Read More ->


Dan B.

Dan B.

Dakota R/T 408, Thanks for everything! Dan https://www.youtube.com/watch?v=wZekmXKYXA4
Read More ->


Craig W.

Craig W.

Thanks John, So far 8 races and 8 top Five!!
Read More ->


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
Read More ->


Benny C.

Benny C.

Thanks for the Great Mopar Service !
Read More ->


Henry T.

Henry T.

HEY! Everything is installed and car runs AWESOME! Thanks for everything, Thanks again. Henry 2000 Dodge Viper R/T 10
Read More ->


Brian C.

Brian C.

I have never had any problems with John on any transaction. One of the few vendors I have never had a single problem with. Including paying overnight...
Read More ->


Harold R.

John, Thanks for the great customer service! Harold
Read More ->


David A.

David A.

Thanks for everything, David
Read More ->


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...
Read More ->


Ricky H.

Ricky H.

Thanks for everything John. The headers are great !
Read More ->


Toby W.

John, Thanks again so much. You're truly awesome.
Read More ->


Ryan

bought numerous things and all transactions went very smooth. Responded to emails within a day or less. Ryan
Read More ->


Jim A.

Jim A.

Two year champion in modified tractor pulling classes named "Watch This Trick". Chrysler 426 Hemi. Thanks for the Great Service!
Read More ->


Felix C.

How awesome is this! This superb service is exactly on point w/what everyone have raved about. Thank you, Felix
Read More ->


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
Read More ->


Maurice

Maurice

Maurice 73 Dodge Dart
Read More ->


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.




Parse Time: 0.187 - Number of Queries: 221 - Query Time: 0.041770231552125