Links Lockers/Gears/Driveline
LOST Tech Article: Auburn Limited Slip Diff Install 7/24/05 Stars5.gif (1046 bytes)
"I went with the limited slip because of the amount of snow/ice that we get here in Denver and because my wife will drive this vehicle on occasion. You can’t “turn off” a Powertrax and the ARB lockers are way out of my budget. A high quality limited slip was the answer for us. I decided on the Auburn over the Trac-Lock because of the cone clutch that the Auburn uses. Basically it won’t wear out as fast as the plate clutch in the Trac-Lock, and the Auburn will transfer power even when traction is zero on one wheel! Those are two huge advantages over the factory limited slip."
LOST Tech Article: Detroit TrueTrac in the front D30a 7/24/05 Stars5.gif (1046 bytes)
Install instructions and review.
Also see: Detailed report of install of front True Trac.
LOST Tech Article: Lockers for the KJ what do they do? 7/24/05 Stars5.gif (1046 bytes)
"We have had a lot of guys ask about lockers for the KJ on this site and I wil provide some info to try and help out."
RockCrawler Review and Install: Powertrax No-Slip 1/31/05 Stars5.gif (1046 bytes)
Step-by-step installation instructions, as well as an explanation of the pros and cons of the Powertrax No-Slip, and the differences between the No-Slip and the Lock Right.
"The Powertrax No-Slip, I am convinced, is the most bang-per-buck, least compromise, easiest installing, 100% locking differential unit available for four-wheelers today. I will be recommending this locker to my friends."
LOST Tech Article: Diffs...Open...Trac-Lok ( LSD-Factory )...Lockers 7/24/05 Stars5.gif (1046 bytes)
Great overview of the KJ differentials and the lockers that are available for them.
Universal Joint Replacement Tech Article (unfinished) 7/15/07 Stars5.gif (1046 bytes)
This is the start of a tech article I was writing for the LOST forum. I never got any pictures, so I didn't finish the article, but it still has some useful info.
West Coast Differentials: Product Catalog 2/25/05 Stars5.gif (1046 bytes)
Excellent resources for differential specifications, locker model numbers, etc.
Parts
Gear Kit, Ring & Pinion: 4.10 for Dana 30a By 3/18/08 Stars5.gif (1046 bytes) Write Review
Switching from the 3.73 to 4.10 gears after you lift and put bigger tires on can help restore the original acceleration and fuel economy.
Vendors: TrailQuest 216.95 Hot Price: This is probably the best deal you'll find. This is a GREAT price for these gears.
ARB Air Locker (ARB-RD93) By ARB 1/28/05 Stars5.gif (1046 bytes) Write Review
Vendors: Rocky Road Outfitters 835.00 Sales tax in Utah: $57.20 + $17.19 shipping + $8.35 insurance
OK Auto, 4wd & Tire 894.95
Tellico 4x4 895.46 Shipping: $36.95. Price reflects 10% LOST KJ club discount.
Powertrax No-Slip (92-0382-2905) By Richmond 1/26/05 Stars5.gif (1046 bytes) Write Review
This is the correct part number if you have an open differential (no LSD).
Vendors: LMT 4X4 Outfitters 375.00 Shipping: $13.00
Tellico 4X4 383.36 Shipping: $26.95. The price shown reflects a 10% discount offered to LOST KJ club members.
Discount Jeep Parts 404.95 Shipping: $26.95.
Rubicon 4X4 404.95 Shipping: $28.95
Rocky Road Outfitters 410.00 Shipping + Ins to 84020: $14.31. (Must also pay $22.81 tax in Utah.)
Reviews: Troysterr Update: Over 6 years and a bunch of tough trails later, the Powertrax is still performing flawlessly. It's awesome on the trail...but it does chew up tires. A selectable locker would be ideal, but way more expensive. So, only 4 1/2 stars. 5/1/11
JJ/krazz1e I've had this on for a few months now and offroad it's make a HUGE difference. I can easily get anywhere. Onroad you can tell it's there but it really isn't that noticeable. You do have to adjust your driving style, like don't floor it around corners :), but other than that it's great. No problems in rain, or snow yet either. For the price and the very easy install I am very happy with this locker. 11/7/05
Adam For the price, I don't think you can do better than the Powertrax No-slip. Installation in an open diff was a cinch and it's barely noticeable on road with my automatic tranny. Off-road it performs as well as a full time locker. I gave it 4.5 instead of 5 stars as every once in a while you will hear it clank on road but it's not a big deal. 7/23/05
Troysterr I've been running my Powertrax for about a week, and have only positive things to say about it. Behaves great on the road, even on wet pavement. I haven't tried it yet on ice or packed snow, but I don't mind driving a bit slower (and engaging 4WD occasionally) in exchange for the awesome offroad capability. 2/28/05
Replacement Rear Axles (YA C52070350) By Randy's Ring & Pinion 8/14/05 Stars5.gif (1046 bytes) Write Review
Replacement rear axles. I believe I read somewhere that these are 25% stronger than OEM axles.
Vendors: Randy's Ring & Pinion 280.00 Price is approximate, for set of rear axles.
Auburn Limited Slip (542074) By Auburn Gear 2/25/05 Stars5.gif (1046 bytes) Write Review
"From over the road daily driving to muddy trails and back roads, Auburn Gear's high bias Pro Series and High Performance Series limited-slip differentials outperform standard OEM differentials hands down."
Vendors: National Drivetrain 334.95 Hot Price: This is probably the best deal you'll find. Shipping: $20.00
Drivetrain Doctors 397.50 "UPS Ground Freight charges will be added."
Detroit TrueTrac - Front (912A314) By Detroit Locker 7/24/05 Stars5.gif (1046 bytes) Write Review
"Detroit Truetrac is the only unit currently available to the aftermarket featuring a gear type limited slip design (no clutch or friction plates to wear out). Designed for medium duty 2 & 4 wheel drive applications, positive gear action provides quiet, automatic splitting of torque, without creating the steering problems associated with other available differentials."
Vendors: Reider Racing 310.00 This price includes shipping, and was reported by Darby Walters on the LOST Forums. Call Reider to verify part #.
Detroit TrueTrac - Rear (913A553) By Detroit Locker 3/15/05 Stars5.gif (1046 bytes) Write Review
"Detroit Truetrac is the only unit currently available to the aftermarket featuring a gear type limited slip design (no clutch or friction plates to wear out). Designed for medium duty 2 & 4 wheel drive applications, positive gear action provides quiet, automatic splitting of torque, without creating the steering problems associated with other available differentials."
Vendors: Drive Train Specialists 390.00 Hot Price: This is probably the best deal you'll find.
4X4 Rock Shop 529.95 The part # listed is wrong, so call to verify price and fitment.
Powertrax No-Slip (92-0382-2925) By Richmond 1/26/05 Stars5.gif (1046 bytes) Write Review
This is the correct part number if you have a limited-slip differential. (I rate this lower than the open diff version, because several LOST members have reported that the LSD version is much more difficult to install than the one for open diffs...it may be worthwhile to look into an Auburn or Detroit LSD.)
Vendors: Rocky Road Outfitters 375.00
Tellico 4X4 377.96 Shipping: $26.95. The price shown reflects a 10% discount offered to LOST KJ club members.
Rubicon 4X4 421.95 Shipping: $26.95.
Discount Jeep Parts 421.95