Teraflex low 231 hd transfer case for 8806 jeep wrangler. Fluid fill drain locations fluid fill drain locations transfer case fill plug stuck and repair s orion transfer case for toyota land 1987 np231 transfer case drain plug size naxja forums northfluid fill drain locationsjeep tj transmission and transfer case fluid change diyjeep tj transmission and transfer case fluid change diytransfercase drain fill plug leaking. If you need an np149 transfer case rebuild kit, youll find it here, as well as a cadillac escalade np 149 transfer case bearing kit. Np231 doubler adapter froehlich suspension technology. Rebuild kit for np208 transfer case new process 208. The nv271 is also commonly known as np271 transfer case. Apr 26, 2017 1995 jeep cherokee xj np231 transfer case upgrade advanced. Jeep grand cherokee zj 4x4 transfer case swap 249 242 231 duration. This transfer case was later to be called the nvg new venture gear 231j. Common transfer cases guide picking high and low ranges. The np208 was the first production transfer case by this manufacturer to use a planetary gear low range.
Np231 beefuprebuild parts list jeep wrangler forum. New model bluetooth jeep wrangler cj tj yj soundbar will work with ipad mini. The 231 was initially tagged as the 231amc, and as ownership of amc was taken. Apdty 711664 transfer case switch compatible with select dodge or jeep models with vacuum actuated 4wd 4wheel drive transfer case replaces 53001101 4. The new process or new venture gearsame guys 231 transfer. Vital parts transfer case bearing rebuild kit fits chevrolet gmc cadillac np 246 98 on.
The np242, also known as the nv242 when it became 23 spline in 91, is a fulltime transfer case used in cherokees xj and grand cherokees zj. The novak guide to the new process new venture gear 231 transfer case. How to build a np233231 hybrid transfer case youtube. My new 231 from a 94 zj had the same length input, meaning i did not have to open the case. Gm automatic four wheel drive transmission to transfer case adapters with factory 4 wheel drive mainshaft 198995 yj wrangler replacing an ax15 transmission with 23 spline output shaft transmission mainshaft not included. Then you can choose which round 6 bolt rear case to run. The np231 transfer case is a rugged, reliable, and durable unit that has been used in a variety of vehicles since 1988. Crown automotive offers the largest line of transfer case replacement parts for jeep. This kit can be bolted to the back of the front half of existing 231j 21 or 23 spline transfercases. Merchant automotive 1 transfer case pump upgrade kit. Unforunately, jeep engineers decided to steal a little of the units available strength, when they put it into our trucks. We did not need to change anything on the input end of the tc or the front driveshaft. Apr 17, 20 how to rebuild a new process np transfer case duration.
Jeep np231 tcase wide chain6 pinion upgrade youtube. Get a np231 rebuild kit here in canada get the rebuild kit here this is part one of how to rebuild a np231 transfer case. Teraflex is a manufacturer of premium suspension systems, body armor, heavy duty axles and performance shocks for the jeep wrangler. New versions of the np231 are refered to as nvg231 or nv231 which stands for new venture gear. The new tj wrangler continues to use the np231, but the np231 used in the tj has a different tail housing that allows the removal of the drive shaft with out losing transfer case fluid. Weve got transfer case drive chains from omixada and mile marker as well. Upgrades some transfer cases have inherent factory flaws causing them to. The np231 case, like the 207, is a found in sseries vehicle applications. This is an aluminum case chain driven parttime unit used in many domestic trucks in the 80s. Exploding your trucks transfer case can really be a drag, whether youre on the trail or just flattowing your 4.
Np231 replacement parts 8801 we carry the largest selection of jeep np231 transfer case parts around. This name confusion is because the original manufacturer new process gear change their name to new venture gear, defining the prefix np or nv. Np 231 transfer case parts for wrangler tj, yj, cherokee. Alloy usa 11650 transfer case chain for 19842006 jeep wrangler, cherokee or grand cherokee models. The new process np 231 transfer case is one of the most common manually operated transfer cases found in all domestic 4x4s except fords. This kit provides rockcrawling performance without. It is the most complete kit weve seen anywhere and features all the consumable and wear item components. Jeep np231 transfer case parts mjw jeep willys parts. The jb conversions np231hd is a bolton replacement for any jeep or dodge np231 transfer case. The np231 is also used in dodge half ton trucks 231hd and chevy gmc s10 and s15 p. Having an aluminum case and being driven by a chain. The new process 231 series transfer case started to be installed in jeep, dodge, and chevrolet applications in 1987. Our factory rebuilt remanufactured below you will find a detailed list that includes complete np231 rebuilt transfer cases, bearing rebuild kits,it is recommended that when ordering bearing overhaul kits you also order a small parts kit. This adapter assembly is designed for exclusive use with the 4wd, gm sm465 4 speed manual with a 10 spline output shaft.
Since the beginning, a constant flow of new, unique and innovative products has made our line what it is today. This had been causing transmission fluid to seep into the transfer case transmission interface and leak out the weep hole. Upgrades some transfer cases have inherent factory flaws causing them to chronically break down. Transfer case cable shifter kit for the 231 jeep wrangler tjlj 19972006. It came from jb conversions who bought the cases directly from new venture gear. The picture gives you a view of all the seals that will be sent. Its mainly a starting ground for ideas for my own build, but feel free to add your own writeup or tip to the list, ill edit this post to add the topics as they get posted.
My 231 did not have a sye, so i had to get a new rear driveshaft when i switched to a 241. In the early 90s the np231c was created or chevy and gmc suvs and pickups. Our parts meet or exceed the guidelines set forth by the manufacturer. New process np231 jeep transfer case 23 spline np231junit. The 242 donor was from a 92 xj with the short style input shaft, meaning it. The transfer case increases the ratio of engine revolutions opposed to tire revolutions.
The jeep np 231 transfer case was introduced in the 1988 model year. Transfer case saver install np231, np241, np243 by wombat. Jeep enthusiasts initially received the transfer case with m. Crown automotive 231maskit crown transfer case overhaul kit. Our master rebuild kit has been assembled for our customers rebuilds as well as our own. That is to say that for every revolution of the transmission output shaft, the front and rear transfer case outputs rotate one revolution. This adapter turns the front planetary half of the 231 you have laying in the shop into a 2. Every transfer case has been rigorously tested for noises, leaks, vibrations and performance.
Starting in 1987, the np241 transfer case was factory installed in fourwheeldrive vehicles from dodge, gm and jeep. We carry a wide variety of jeep accessories including dash kits, window tint, light tint, wraps and more. The short shaft as seen on the 231 uses the two piece driveshaft which is about 2 12 inches longer than the one piece shaft. The longer output shaft on the 233 is found on auto transmission vehicles. Regardless of what you want to call it we bring you the most stable and upgraded version of this transfer case to date. The new process 231 transfer case installed in our jeeps is a simple, well designed unit. Complete transfer cases slip yoke eliminator kits wide chain kit rebuild kits planetary upgrade yokes flanges input. Diagrams for jeep transfer parts np 231 transfer case. Gm th350 transmission to np231 transfer case 23 spline.
We have a large inventory of rebuilt np231 transfer cases plus transfer case parts. Jeep wrangler np231 transfer case master overhaul kit 88. New versions of the np231 are referred to as nvg231 or nv231 which stands for new venture gear. This top loaded heavyduty transmission has a cast iron case, and is 12 in length. If its time to rebuild your worn out broken np231 transfer case, then do it right with a complete transfer case rebuild kit. The highrange ratio for the np208 is direct, 1to1, and its lowrange reduction ratio is 2. Bearings, drive chain, roller bearings, shift forks, gasket sets, main shaft gears, sliding output shaft gears. These transfer cases are part time four wheel drive with shift positions 4hi 2hi n 4l. New process which is now known as new venture gear built the np231d and np231j the mid80s for use in dodge and jeep application. The np231 transfer case found in many latemodel jeep, dodge, and gm. Please visit our warranty page for complete coverage information on our transfer cases and extensive line of quality remanufactured engines, transmissions.
The tag on the back of the transfer case will reflect the name change. Np231 transfer case drain plug size best drain photos. Youll get brand new oe spec steel bearings and premium rubber seals, so you can return your wrangler transfer case to factory condition. Since 1988, the np231 has been the command trac transfer case used in cherokees xj, comanches mj, and wranglers yj. Neither of my cases is leaking, but good idea while the 23 spline unit is apart to do the rebuild.
Youll find both front and rear np 149 transfer case halves, an np 149 viscous coupling, an nv125np149 planetary gear, a main and input shaft, as well as a transfer case chain that fits all the following. Np231 transfer case new and used automotive parts and. These facts make the np231 a good candidate for upgrades and. Best of all, jasper remanufactured transfer cases come with our 3 year100,000 mile nationwide transferable warranty. Np231 transfer case small parts kit, tc23150u w snap rings.
This is a fairly common topic with these trucks, so i figured its worth a shot. Both versions of the np231 used in the wranglers have an over all length that is long for a short wheel base vehicle. The 231 was initially tagged as the 231amc, and as ownership of amc was taken over by chrysler, it was later designated as the 231j. Np 231 transfer case rebuild kits and parts are you having problems with your np231 transfer case and need a rebuild kit or replacement parts. The np231 has an aluminum case and it should have a tag on the back saying new process gear, model 231.
Jeeps yj wrangler and the xj mj cherokees with the command trac option were the first models to feature it. Gm th350 transmission to np231 transfer case 23 spline adapter. The np231 transfer case found in many latemodel jeep, dodge, and gm vehicles has a fairly good reputation for a chaindriven, aluminumcased unit, but improper. This kit is designed to the stringent oem specification for the np231. Np231 rebuild no 4low, need pro help jeep wrangler forum.
Basically, jb conversions starts with an empty np231 tcase and loads it with aftermarket upgrades to make it super strong. The new process np 231 transfer case is one of the most common manually operated lever shifted t cases found in all domestic 4x4s except fords. The new process new venture 231 transfer case is one of the most durable and rebuildable transfer cases in the history of jeeps. Home transfer cases jeep transfer cases np 231j introduced in the 1988 model year, the np231 case is aluminum cast, chain driven, and part of the command trac series of transfer cases. The np231 transfer case found in many latemodel jeep, dodge, and gm vehicles has a fairly good reputation for a chaindriven, aluminumcased.
Jeep np231 t case wide chain6 pinion upgrade duration. Find an np249 transfer case for sale from crown automotive, or np231 chain upgrade from alloy usa. We offer quality professional rebuilt np231 transfer cases and parts including rebuild parts kits that are designed to be top of the line overhaul kits. Unfollow np231 transfer case to stop getting updates on your ebay feed. Jeep np231 23 spline input gear for short transmission shaft stick out lengths. Np231 in 1987 jeep began the gradual introduction of the new process 231 transfer case.
Np 231 j jeep wrangler transfer case rebuild step by step jerryrigeverything. Retech np231 transfer case with oe slipyoke morris 4x4. At transfer case warehouse we are unique because we do not have an upfront core charge. Our applications include transfer case kits, gears, bearings, shafts, gaskets, seals and more for all jeep models. Np231j transfer case upgrade 231 beefing four wheeler. Np231j transfer case upgrade 231 beefing transfer case teardown. Buy this boot for np 231 or 242 transfer case from today. Fst now offers our 231 doubler adapter with rear case clocking ring. If you are looking for oem jeep replacement transfer case parts or want to upgrade your np231 transfer case parts we have everything that you will. Jb then added their short shaft kit sye and converted the shift sector from dodge to jeep.
We offer a variety of np231 transfer case for your automotive needs. Offroad applications are covered by our 18 month100,000 mile warranty. Jeep wrangler tj 9702 np 231 j transfer case 4cyl 21 spline free shipping see more like this. No matter what youre driving, we have the right np231 transfer case for your vehicle.
New process 231 np231 transfer case repair parts online. The new process 231 transfer case is one of the most common and durable transfer cases ever produced. I swapped the nv231 transfer case in my 2005 tj 6cyl wmanual transmission for a used rubicon nv241or actually, mr. See more ideas about jeep wagoneer, jeep and morris 4x4 center. It has earned a reputation as being reliably solid and a definite improvement over the np203 transfer case that it replaced. Be careful using the shorter shaft with the shorter transfer case as premature tail shaft bushing and spline wear can occur.
The nv231 became in extremely popular transfer case used in some vehicles all the way until 20. Although it was primarily used on jeep vehicles, gm and dodge also used this transfer case in some of their vehicles, and youll find we carry some. Novak says a short input is necessary for my ax15np231 combo but it clearly just doesnt work on mine and simply cant seal. Jeep np231 23 spline input gear for long transmission shaft stick out lengths. Jeep np231 transmission replacement parts or, more specifically, np 231 transfer case parts, can be found here in a wide selection and at great discount prices. Np231j transfer case upgrade 231 beefing jeep cherokee. We build a hybrid transfer case and answer the age old question of whats the easiest way to put fixed yokes in a chevy s10. Novak says a short input is necessary for my ax15 np231 combo but it clearly just doesnt work on mine and simply cant seal. Need other transfer case parts, give us a call toll free 8002161632 complete overhaul kits, chain and much more, give us a call and let us help. New process np231 transfer case parts exploded view.
Np 231 transfer case parts for wrangler tj, yj, cherokee xj. Np231dhd is a zeromile unit originally manufactured for fullsize dodge trucks. Jeep factory transfer cases transfercases from jeeps. It has been the command trac transfer case in the grand. Rt24005 slip yoke eliminator kit for np231 transfer case by rt offroad. Np231 transfer case midwest transmission center, inc. Teraflex has been professionally involved with jeeps since the 1950s, and our experience allows us the ability to make jeeps perform their best. Whether you need an np231 chain or an nvg241 chain, or anything in between, find it here at 4 wheel parts. Np249np231 and np242 swap information bentframe 4x4. These cases were built for not only durability but simplicity as well, providing for easy servicing and possible upgrades as. Teraflex low 231 hd transfer case is no longer available. Since so many of us are using the np 231 transfer case in our tjsyjsxjszjs etc i figured id start a thread with some tech on this case. The retech np231 transfer case with oe slipyoke is a direct oe type replacement part for the above listed jeep application. The tera low231 conversion kit is the solution for providing wranglers, cherokees, and comanches with low crawl ratios.
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