{"product_id":"teraflex-np231-extreme-short-shaft-kit-1997-2006-jeep-wrangler-tj-wrangler-unlimited-lj-4444400","title":"TeraFlex NP231 Extreme Short Shaft Kit for 1997-2006 Jeep Wrangler TJ \u0026 Wrangler Unlimited LJ","description":"\u003cp\u003eTeraFlex's Extreme Short Shaft Kit converts the NP231-J transfer case in a 1997-2006 Jeep Wrangler TJ or Wrangler Unlimited LJ to a much shorter rear output. TeraFlex says it is more than 3\" shorter than a standard slip yoke eliminator kit and 1.5\" shorter than an Atlas II, and it lets the rear driveshaft grow by up to 7\" over stock. Speedometer signal comes from a tone ring and the included electronic sensor. It must run with a CV (double cardan) driveshaft, sold separately, and TeraFlex lists about five hours of labor.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eUp to 7\" longer driveshaft\u003c\/strong\u003e\u003cbr\u003eMore rear driveshaft length than stock, per TeraFlex.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShorter than an SYE\u003c\/strong\u003e\u003cbr\u003eOver 3\" shorter than a standard SYE kit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1.5\" shorter than Atlas II\u003c\/strong\u003e\u003cbr\u003eTeraFlex's own comparison.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStronger rear output\u003c\/strong\u003e\u003cbr\u003eTeraFlex says it improves on strength.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eElectronic speedometer signal\u003c\/strong\u003e\u003cbr\u003eTone ring and electronic sensor included.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCV driveshaft required\u003c\/strong\u003e\u003cbr\u003eRuns only with a double cardan driveshaft.\u003c\/p\u003e\n\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cstyle\u003e.pt-fit{margin:10px 0 4px;position:relative}.pt-fit\u003einput{position:absolute;width:1px;height:1px;opacity:0;margin:0;pointer-events:none}.pt-fit__tabs{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 12px;padding:0}.pt-fit__tabs label{display:inline-flex;align-items:center;gap:7px;cursor:pointer;padding:6px 14px;border:1px solid #e2e4e6;border-radius:999px;background:#f2f3f4;color:#4a5057;font-weight:700;line-height:1.35}.pt-fit__tabs label\u003espan{display:inline-flex;align-items:center;justify-content:center;box-sizing:content-box;min-width:1.5em;height:1.5em;padding:0 .3em;line-height:1;font-size:.75em;font-weight:700;color:#8a9099;background:#ffffff;border-radius:999px}.pt-fit__tabs label:hover{background:#e8eaec}.pt-fit__p{display:block}#fit-4444400 .pt-fit__p{display:none}.pt-fitw{overflow-x:auto;border:1px solid #e6e6e6;border-radius:8px;background:#ffffff;margin:10px 0 4px}.pt-fitw table{display:table;table-layout:fixed;width:100%;margin:0;border-collapse:separate;border-spacing:0;border:none;min-width:560px}.pt-fitw caption{caption-side:top;text-align:left;padding:0 0 8px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#8a9099;font-size:.8em}.pt-fit .pt-fitw caption{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap}@media print{.pt-fit .pt-fitw caption{position:static!important;width:auto!important;height:auto!important;clip-path:none!important;padding:0 0 8px!important}}.pt-fitw th{background:#141414;color:#ffffff;text-align:left;padding:11px 14px;font-weight:700;font-size:12px;letter-spacing:.09em;text-transform:uppercase;border:none;white-space:nowrap}.pt-fitw td{padding:11px 14px;border:none;border-bottom:1px solid #ececec;background:#ffffff;vertical-align:top}.pt-fitw tbody tr:nth-child(even) td{background:#f7f7f7}.pt-fitw tbody tr:last-child td{border-bottom:none}.pt-fitw td.y{font-weight:700;white-space:nowrap}.pt-fitw td.b{white-space:nowrap}.pt-fitw td.n{color:#5a6067;font-size:.92em}.pt-fitw td.e{color:#c4c8cc}#fit-4444400\u003e.pt-fit__panels\u003e.pt-fit__p:first-of-type{display:block}#fit-4444400\u003einput:checked~.pt-fit__panels\u003e.pt-fit__p{display:none}@media print{#fit-4444400 .pt-fit__tabs{display:none}#fit-4444400 .pt-fit__p{display:block!important}#fit-4444400 .pt-fitw{overflow:visible!important}#fit-4444400 .pt-fitw table{min-width:0!important}}\u003c\/style\u003e\u003cdiv class=\"pt-fitw\"\u003e\u003ctable\u003e\n\u003ccaption\u003eJeep\u003c\/caption\u003e\n\u003ccolgroup\u003e\n\u003ccol style=\"width:22%\"\u003e\n\u003ccol style=\"width:28%\"\u003e\n\u003ccol style=\"width:12%\"\u003e\n\u003ccol style=\"width:38%\"\u003e\n\u003c\/colgroup\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eBed\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"y\"\u003e1997-2006\u003c\/td\u003e\n\u003ctd\u003eWrangler\u003c\/td\u003e\n\u003ctd class=\"b\"\u003e\u003c\/td\u003e\n\u003ctd class=\"n\"\u003eTJ\/LJ; NP231-J transfer case only; Requires CV driveshaft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cdiv style=\"background:#faf7f7;border-left:4px solid #ba232a;border-radius:0 8px 8px 0;padding:14px 16px;margin:12px 0;\"\u003e\n\u003cp style=\"margin:0 0 8px;\"\u003e\u003cstrong\u003eCheck your Jeep:\u003c\/strong\u003e 1997-2006 Wrangler TJ or Wrangler Unlimited LJ with the NP231-J transfer case, ready to run a CV (double cardan) rear driveshaft.\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eNot for:\u003c\/strong\u003e Transfer cases other than the NP231-J; mechanical-speedometer NP231s not updated to electronic. Milder version: NP231 Short Shaft Kit 4444401.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eBrand:\u003c\/b\u003e TeraFlex\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePart Number:\u003c\/b\u003e 4444400\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eProduct Type:\u003c\/b\u003e NP231 extreme short shaft kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTransfer Case:\u003c\/b\u003e NP231-J only\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDriveshaft Gain:\u003c\/b\u003e Up to 7\" over stock\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSpeedometer:\u003c\/b\u003e Tone ring + electronic sensor; converter box required to calibrate\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRequires:\u003c\/b\u003e CV (double cardan) rear driveshaft\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUPC:\u003c\/b\u003e 843885027720\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eTime:\u003c\/b\u003e 5 hours · \u003cb\u003eWhat's involved:\u003c\/b\u003e Drain the transfer case, remove the drivelines and tail housing and split the case, then fit the new main shaft and rebuild it with the new tail housing, yoke and tone ring. Refill with 2.2 pints of ATF+4. · \u003cb\u003eTools:\u003c\/b\u003e Basic mechanics tool set; Snap ring pliers; Mallet or dead blow hammer; RTV gasket maker; Red thread locking compound; Rest on TeraFlex's tool list\u003c\/p\u003e\n\u003cp\u003eHere's the short version. Follow TeraFlex's install sheet (below) for your Jeep's exact steps and torque values.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eDrain the transfer case oil (15\/16\" or 10mm Allen plug), remove the rear driveline, disconnect the front driveline at the transfer case yoke and tie it aside, and pull the speedometer gear assembly (13mm bolt).\u003c\/li\u003e\n\u003cli\u003eRemove the front output yoke, the rear dust shield and harmonic balancer (if fitted), the rear output seal and snap ring, and the five tail housing bolts, then separate the tail housing.\u003c\/li\u003e\n\u003cli\u003eRemove the synchro hub snap ring, hub and drive sprocket (note their orientation), split the case (eight case-half bolts; note the 10mm 12-point bolt; pry at the machined notches) and lift out the front and rear outputs with the chain.\u003c\/li\u003e\n\u003cli\u003eFit the drive sprocket and synchro hub on the new TeraFlex main shaft with the retaining ring and install the main shaft, chain and front output (note the synchro ring orientation); check the mode fork shift rod is 9.38\" (1988-1989 YJ\/XJ 10.2\" rods must be cut or replaced) and the fork pads for wear.\u003c\/li\u003e\n\u003cli\u003eClean the mating surfaces, refit the magnet, mode fork and oil pickup, join the halves with a max 3\/16\" bead of gasket maker and blue-thread-locked bolts torqued crisscross to 20-25 ft-lbs; fit the tone ring on its dowel pin, put the four driveshaft bolts in the yoke before sliding it on, seal the spline with silicone and torque the red-thread-locked yoke nut to 90-130 ft-lbs; fit the new tail housing with a max 3\/16\" bead, bolts crisscross 15-20 ft-lbs.\u003c\/li\u003e\n\u003cli\u003eOil the sensor O-ring and tighten the sensor bolt to 8-12 ft-lbs, fit the seal washer and yoke on the front output with the red-thread-locked nut at 190-230 ft-lbs, fill with 2.2 pints (1.0L) of ATF+4 and reinstall the case if it was removed (1997 and older Jeeps need pigtail #4990108 for the speed sensor plug).\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eResources\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0805\/4784\/0244\/files\/teraflex-install-sheet-1573.pdf?v=1792344022\" target=\"_blank\" rel=\"noopener\"\u003e999008 231 SYE Extreme Short Shaft (PDF)\u003c\/a\u003e, TeraFlex's own installation guide.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eWarranty, Shipping \u0026amp; Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty.\u003c\/strong\u003e TeraFlex's warranty list gives its transfer case short shaft kits 1 year against defects in materials and workmanship. It names no separate term for the shift linkage adapter kit, so contact us and we will confirm that coverage before you order. Paint and powder coat finishes carry 90 days (defects only).\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTeraFlex extends its limited warranty only to the consumer who first bought the product, and only on the vehicle the part was first installed on. It does not pass to a later owner.\u003c\/li\u003e\n\u003cli\u003eCoverage starts on the purchase date and does not restart if a part is repaired or replaced.\u003c\/li\u003e\n\u003cli\u003eFor a covered defect, TeraFlex will either repair or replace the product (or the faulty part) free of charge or refund the purchase price, at its discretion, and it pays the freight to send a repaired or replacement part back to you.\u003c\/li\u003e\n\u003cli\u003eNot covered: damage from transportation, storage, improper use, skipped instructions or preventive maintenance, modifications, unauthorized repair, normal wear and tear, product finish, improper installation or maintenance, racing or competition, or accidents, abuse and neglect. Improper installation, poor maintenance, racing or competition use, and neglect or abuse void the warranty.\u003c\/li\u003e\n\u003cli\u003ePaint and powder coat finishes carry 90 days of defect coverage only, not wear from use.\u003c\/li\u003e\n\u003cli\u003eClaims: contact us first. Keep your proof of purchase or original invoice; removing the part from the vehicle and the inbound shipping are the owner's responsibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFree shipping.\u003c\/strong\u003e Ships free to the lower 48 states, with no minimum order.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOrder by 5 PM ET on a business day and it starts processing the same day.\u003c\/li\u003e\n\u003cli\u003eMost orders arrive within 1-5 business days.\u003c\/li\u003e\n\u003cli\u003eWe email your tracking number as soon as it ships.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInspect on delivery.\u003c\/strong\u003e Open the box as soon as it arrives. Match every part and hardware bag to the TeraFlex parts list on the instruction sheet, check machined surfaces and seals for shipping damage, and contact us right away about anything missing or damaged. Check it as soon as it arrives.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLook for crushed ends, punctures or tears in the carton.\u003c\/li\u003e\n\u003cli\u003eIf something looks wrong, take photos of the box and the parts (and if a driver asks you to sign, note the damage on the receipt).\u003c\/li\u003e\n\u003cli\u003eOpen the box and check the parts against the parts list before you install.\u003c\/li\u003e\n\u003cli\u003eEmail \u003ca href=\"mailto:support@prestigetruck.com\"\u003esupport@prestigetruck.com\u003c\/a\u003e right away with your order number, a short note and photos. We send a replacement or a full refund at no cost to you.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e30-day returns.\u003c\/strong\u003e Return it within 30 days of delivery, unused, in the original packaging, with proof of purchase.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEmail \u003ca href=\"mailto:support@prestigetruck.com\"\u003esupport@prestigetruck.com\u003c\/a\u003e with your order number. We reply within 1-2 business days with instructions.\u003c\/li\u003e\n\u003cli\u003eDamaged, defective or wrong item: we send a prepaid label or arrange a pickup.\u003c\/li\u003e\n\u003cli\u003eChanged your mind: you pay return shipping. No restocking fee.\u003c\/li\u003e\n\u003cli\u003eRefunds go back to your original payment method within 7 business days of approval. See our \u003ca href=\"https:\/\/prestigetruck.com\/policies\/refund-policy\"\u003ereturns policy\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAbout TeraFlex\u003c\/h3\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:24px;align-items:flex-start;margin:6px 0 4px;\"\u003e\n\u003cdiv style=\"flex:0 0 150px;max-width:150px;border:2px solid #14161a;padding:12px 8px;text-align:center;font:700 22px\/1.1 Rajdhani,'Arial Narrow',sans-serif;letter-spacing:.06em;color:#14161a;\"\u003eTERAFLEX\u003cspan style=\"color:#ba232a;\"\u003e.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 340px;min-width:240px;\"\u003e\n\u003cp\u003eTeraFlex describes itself as a Jeep company at heart, started and staffed by people who drive them. It designs, engineers and builds suspension systems, shocks, axles and performance parts, with the Wrangler and Gladiator at the center of the range.\u003c\/p\u003e\n\u003cp\u003eThe company traces its roots to the 1950s and MEPCO (Military Equipment Parts Company), an early supplier of Jeep parts. TeraFlex Manufacturing followed in 1996 to build heavy-duty suspension for the TJ Wrangler, and today's catalog runs from full lift systems and the Falcon shock line to axles, steering and armor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#faf7f7;border-left:4px solid #ba232a;border-radius:0 8px 8px 0;padding:14px 16px;margin:16px 0 0;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eAuthorized TeraFlex dealer.\u003c\/strong\u003e Prestige Truck is an authorized TeraFlex dealer, so what we sell is new and genuine TeraFlex. In TeraFlex's words, its limited warranty extends \"only to the consumer who originally purchased the product,\" so keep your receipt with your build records.\u003c\/p\u003e\u003c\/div\u003e","brand":"TeraFlex","offers":[{"title":"Default Title","offer_id":67835450949876,"sku":"4444400","price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0805\/4784\/0244\/files\/teraflex-driveline-transfer-case-a001.jpg?v=1792343979","url":"https:\/\/prestigetruck.com\/products\/teraflex-np231-extreme-short-shaft-kit-1997-2006-jeep-wrangler-tj-wrangler-unlimited-lj-4444400","provider":"Prestige Truck","version":"1.0","type":"link"}