Mopar Beadlock, why two different model numbers

What is the difference in the two part numbers below? Just for Jeeps instructs you to choose depending on Wheel type. Did Mopar offer two different backspacings?


From the Just for Jeeps website.

http://www.justforjeeps.com/trbe17wh.html

A great rugged wheel for your Jeep Wrangler. 17"x8.5" True BeadLock "Rock Monster" 2 piece wheel sparkles in silver with Jeep logo center cap. Please choose wheel type depending on tire application below:

Item # 82210855:
- BF Goodrich - All Terrain T/A KO - 285/70R17
- BF Goodrich - All Terrain T/A KO - 315/70R17
- BF Goodrich - All Terrain T/A KO - 37x12.5R17
- BF Goodrich - Mud Terrain KM - 285/70R17
- BF Goodrich - Mud Terrain KM - 35/12.5R17
- BF Goodrich - Mud Terrain KM - 37x12.5R17
- Goodyear - Wrangler GS-A - 37x12.5R17
- Goodyear - Wrangler MT/R - 37x12.5R17
- Goodyear - Wrangler MT/R - 40x13.5R17
- Interco - IROK - 39.5x13.5R17
- Mickey Thompson - Baja Claw - 37x13.5R17
- Pit Bull - Growler - 33x12.5-17
- Pit Bull - Growler - 35x14.5-17
- Pit Bull - Maddog - 35x14.5-17
- Procomp - Xterrain - 37x13.5R17

Item # 82209904:
- BF Goodrich - All Terrain T/A KO - 265/70R17
- BF Goodrich - All Terrain T/A KO - 265/65R17
- BF Goodrich - BAJA T/A - 35x12.5R17
- BF Goodrich - BAJA T/A - 37x12.5R17
- BF Goodrich - Krawler - 37x12.5R17
- BF Goodrich - Krawler - 39x13.5R17
- BF Goodrich - Mud Terrain KM - LT255/75R17
- BF Goodrich - Radial Long Trail T/A - 265/70R17
- BF Goodrich - Rugged Trail T/A - 245/65R17
- BF Goodrich - Rugged Trail T/A - 265/65R17
- BF Goodrich - Rugged Trail T/A - 285/70R17
- Bridgestone - Dueler H/L Alenza - 255/75R17
- Goodyear - Eagle LS - 235/60R17
- Goodyear - Eagle LS - 235/65SR17
- Goodyear - Integrity - 235/65SR17
- Goodyear - Wrangler MT/R - 265/70R17
- Goodyear - Wrangler MT/R - 285/70R17
- Goodyear - Wrangler SR-A - 265/65SR17
- Goodyear - Wrangler SR-A - P255/75R17
- Interco - Super Swamper STL - 35x12.5R17
- Interco - TRXUS MT/Radial - 33x12.5R17
- Mickey Thompson - Baja Belted - 33x12.5R17
- Mickey Thompson - Baja Belted - 34x11.50R17
- Mickey Thompson - Baja Belted - 35x12.5R17
- Mickey Thompson - Baja Claw - 33x12.5R17
- Mickey Thompson - Baja Claw - 35x12.5R17
- Mickey Thompson - Baja Rad - 32x12.5R17
- Mickey Thompson - Baja Rad - 33x12.5R17
- Pirelli - Scorpion STR - LT265/70R17
- Pit Bull - Rocker - 33x13.5-17
- Pit Bull - Rocker - 35x14.5-17
- Pit Bull - Rocker - 37x13.5-17
- Toyo - Open Country - 35x13.5R17
- Toyo - Open Country - 37x13.5R17

 

that doesn't make since

 

I am assuming it has something to do with the tires. I know for the normal Rock Monster wheels from them they have different part numbers based on the tire you are using. My guess is maybe the inner ring needs to be different depending on the tires bead, or width.

 

That is what I just found out. It depends on the thickness of the bead of various tires.

 

BTW, do these have less backspacing than stock Rubicon wheels?

 

I think they are the same. On the Rubicon at SEMA in 07 with these the Mopar guys were running spacers with the 37" tires.

 

Yeah, thats what I was afraid of. Google mopar hutchinson and there is a site that has pictures of them all taken apart and they looked like the same backspacing to me. I'm thinking to myself that there isn't much of a point to making high end beadlocks that won't even clear bigger tires without using spacers.

 

That's insane money for those things, I mean they look cool, but really???

 

They are cool, but no thanks. Like the trailreadys better.