Np203 transfer case illustration exploded view is provided to assist you in identifying parts and assembly sequence details. Dodge used the np203 behind both tf727 autos and np435 manuals from 75 to 79. It is an all wheel drive transfer case for full size pickup trucks. S ticks out 31116out from the front of the case once installed. Order 203 part shop by brand shop by aircraft deal of the. How to rebuild a new process np transfer case youtube. This is one heavy and awkward unit so use caution when lowering. This manual has approximately 100 pages of everything you need to know about rebuilding an np203 or np205 t case. Give us a call 8002161632 and let us help save you some money, ask about used parts. The np208 was manufactured with manual shift, it is a replacement unit for the earlier units, it is a part time case, the front driveshaft will not receive power when in 2wd. Figure 4 front input of chevy np203 showing asymmetrical 7bolt pattern and 10spline input indicating sm465 version. The np261 transfer case was manufactured by new venture gear.
We stock a complete line of manual transmission and transfer case parts. Manual front hub, conversion, chevy, ford, gmc, with np203 transfer case, kit. The np205 gear driven transfer case is considered by many to be the king of bulletproof. If you need help with flywheels or clutches, transtar industries is here for you. Drain all oil from np203 into a container and discardrecycle where safe. E195 housing, front case bw70 1 8900 ae tc70220r e245 shaft, shift bw70 welectric shift 1 8900 na tc56209 e248 cam, electric shift bw70 1 8900 56099008 tc56208 e252 housing, rear case bw70 1 8900 ae tc70223r e254 housing, rear extension bw70 1 8900 ae tc70225r transfer case chains. Lower the tranfer case and place it on the floor or work bench.
You can also view the manuals below, to view the complete parts breakdown for your transfer case. The np203 transfer case np203 manual transmission is a fulltime, chaindriven unit used selectively by ford, gm and dodge on fullsized pickup trucks from 1973 to 1979. It will also mate to manual transmissions such as the np435 that have a 31spline male output. Parts breakdown, service manuals and owners guides free to view and download. The np261 transfer case is used for more heavy duty applications, being reserved for mostly truck and van use. Is there something that would be better from the perspective of protecting gears than a motor oil. This transfer case uses a larger front bearing than the 10 and 27 spline transfer cases. The most notable differences between the bronco dana 20s are the early version 6672 known as the tshift with 2. Np 203 transfer case shifting problems snowplow forums.
Mile marker transfer case conversion kits free shipping. We offer only quality rebuild kits that include all the component replacement parts you need to service your manual transmission and transfer case. Some confuse them for a large case dana 18 because of this. Chevy gmc transfer case rebuild what to repair pt 2 youtube. Our comprehensive stock of parts for air braking systems, hydraulic braking systems, and air suspension systems includes everything from air compressors, valves, reservoirs and brake actuators to airline couplings, pipe fittings, nylon. Found in 198591 vehicles, this transfer case has a long stick out of approximately 3. This kit converts your fulltim 4x4 np203 transfer case into part time. This manual has approximately 100 pages of everything you need to.
Hang out in the garage with me as i clean up and assemble an np263 hdgm transfer case to correct common failures, make fixes, and show how to install new sea. The np200 you were talking about originally is a twin stick case but it requires mods to engage the front axle independently, which is half the reason for a twin stick front digs. Ever since i have owned it the transfer case has shifter rather hard and finally i decided to try and adjust the linkage. This uses a 32 spline output shaft and an adapter housing thats approximately 7 long. Chevy transfer case 203 community chevy automotive sales inc. The wellknown np205 transfer case, that was available in many civilian trucks beginning in 1969, is an outgrowth of the np200. When i bought the truck it already had a conversion kit in the transfer case. If you require an np203 transfer case rebuild kit for gm vehicles, including chevrolet np203 transfer case. The transfer case is made up of 4 sections bolted together, a range box the gear reduction we use for the doubler kit, the chain case which houses the chain drive to the front driveshaft output, the differential housing, and the output housing. The np200 variants are the np201 and np202, which are similar, but feature pto ports. It was introduced in 1969 and used until about 1993. Np203 np205 atsg transfer case rebuild manual 203 205.
The novak guide to the dana spicer model 20 transfer case. Np203 transfer case the new process 203 was used in gm, ford, and dodge through the 70s behind auto and manual transmissions. Introduction this parts book is designed so that you can look up part numbers in two different ways. Installation manual for your np203np205 adapter kit step 1. After the bolts have been removed, smack the housing with a deadblow hammer to loosen the seal. Transfer case manuals, operator guides, parts and service manuals. The np205 was the sole transfer case choice for all 1980 gm 4. New process 203 np203 transfer case repair parts online. Secure the transfer case to a transmission jack or other suitable jack, and remove the mounting bolts note.
I was rebuilding the whole case when i purchased this kit, installation is not that hard, but its not that simple either. This transfer case was installed in dodge 19801987 ford 19801986 gmc 19811988 jeep sj 19801990. Im looking for a suggestion for the oil to use in a np203 transfer case. There is a short bearing retaineroutput housing at the tail of the case, and aluminum bearing retainersseal retainers at the front and rear outputs but the working parts are all in a single iron housing. Please visit our partner site makco transmission parts for tc repair manual np 203 transfer case repair manual products found in this category. Ford and dodge np205s use 32 spline fixed outputs front and rear, always. Ive been trying to find the back half of a 203 for awhile, if you could contact me that would be great. It has the same texas front mounting input flange as does the dana 18.
Np205 transfer case midwest transmission center, inc. Im looking at a 78 chevy suburban and it has the np203 transfer case with manual locking hubs. Np203 new process transfer case diagrams and information. They were originally a full time 4wd case, meaning all 4 tires receive power at all times.
This one is a book on cdrom for a new process 203 or 205 transfer case used in many 4x4 ford, gm, and dodge trucks with cast iron transfer case please email for specific applications from 1969up. Very beginner question, how do i use the np203 transfer case. Chevy 350 turbo 203 transfer case adapter np203 np 203 doubler 70. Here is a documented tear down and rebuild of this unit. The output drop for the front driveshaft is on the drivers side. The np203 transfer case was used by dodge from 19741979, ford from 1974 to 1979 and chevrolet and gmc from 1973 to 1979. If you require an np203 transfer case rebuild kit for gm vehicles, including chevrolet np203 transfer case parts, we may have exactly what you need right here.
This manual has approximately 100 pages of everything you need to know about rebuilding an np203 or np205 tcase. In addition to bearings, gaskets, and seal kits, transtar offers a complete line of transmission and transfer case hard parts. The new process 200 transfer case was jeeps first use of a nondana spicer transfer case. The front 2 sections are cast iron, the back 2 sections are typically aluminum. Np208 transfer case midwest transmission center, inc. Chevygm did not offer manual hubs with the 203 case, as, it was full time. Installation manual for your np203np205 adapter kit.
This transfer case is a good gear box with a low ratio of 2. Service kits include parts to service all the different models covered by this. Details of the np203 used by each manufacturer are as follows. Are you having problems with your np208 transfer case and need a rebuild kit or replacement parts. So, whether you need a case, a gear, a chain, or synchro rings, we have. Available as part time or fill time, torqueondemand. Markings on the dana 20 can vary, but most start with a c181524. Oct 24, 2017 the np205 transfer case is a heavyduty, geardriven unit manufactured by new process gear in syracuse, new york. There are a lot of needle bearings that fall when disassembling this case. E252 housing, rear case bw70 1 8900 ae tc70223r e254 housing, rear extension bw70 1 8900 ae tc70225r transfer case chains b280 chain, drive 72 links 1. The front driveshaft will not receive power when in 2wd the transfer case is gear driven, 1.
It is also found in ih and ford vehicles as well as a limited run of gm trucks in the earlymid 1970s. B6 hub, mode bw70 w manual shift 1 8900 ae tc70197r c150 collar, mode bw70 welectric shift 1 8900 ae tc70203r. Transfer cases for gmc and chevy vehicles got transmissions. Has a combination of 2 high, 4 high, neutral and 4 low. The nv4500 came in dodge and gm output configurations and the one thats used to mate to the np203 is the gm 4wd nv4500. Compared to the np203 and np205, the lightweight cast aluminum housing of this transfer case is easier to handle. Manuals may be obtained by calling the to meritors customer service center at 8005355560.
Nos 19731979 chevygmc truck type 203 transfer case oil pump seal gm335181 dp 15. Transfer case manuals, operator guides, parts and service. If you know the part number of the transfer case, for example, if the model number is t223h36, you simply match the item number in the. M440 melroe borg warner 56 transfer case manuals national survival service manual 26 mb djvu v 4 33. Ford available behind c6 automatic transmissions, the ford np203 has a 31spline input and ford 6bolt circular bolt pattern. As a general rule, all of the transfer cases that couple to a th350 automatic are normally a 27 spline input. Im new to 4x4 and wanna know how to use this transfer case. Both of these transfer cases used various input splines. Chevy transfer case 203 community chevy automotive sales. Many of the fullsize chevrolet vehicles have used the 203 units. The novak guide to the new process model 200 transfer case.
The np203 is a chain driven full time transfer case. The overall length of the np203 case is 2223 from the face of the case to the rear output yokes. The transfer case is made up of 4 sections bolted together, a range box, the chain case which houses the chain drive to the front driveshaft output, the differential housing, and the output housing. Aug 23, 2017 203 transfer case manual bobcat e50 compact excavator. If you need any assistance identifying the model of your transfer case or the needed part, we can help. The weakest part of this transfer case is that the shifter fork wears easily, causing shifting problems. Fullsize ford truck transfer cases blue oval trucks. Remove np203 from transmission if necessary step 2. Gmc jimmy, suburban and yukon and full size pickups 19811988. All 6677 broncos came with the dana 20 transfer case. The np203 transfer case is a chain driven transfer case with a cast iron case.
The np205 was manufactured with manual shift, it is a replacement unit for the earlier units, it is a part time case. The np208 transfer case is similar to the np203 and np205 cases, sharing a number of applications between them, though on the 208 the casing is made out of aluminum rather than iron usage. Manual items not specified 119 items 119 see all. This can be done without a press, and with basic tools. The chevy np203 bolt pattern is a unique, 7bolt asymmetrical pattern, as seen in figure 4. Note the front case half is aluminum on this version, while the rear is magnesium, like all other bw56s. We support almost all makes and models old or new, foreign and domestic, lightduty trucks, passenger cars and performance applications. This is done by removing the 6 bolts that hold the tail housing to the chain case. Rare, only found in 8993 dodge trucks with the cummins diesel and the getrag 5 speed manual. I was reading through your install nice work, and noticed you werent going to reuse the chain and diff from the 203. Dana 20 transfer case wild horses early ford bronco parts. Follow along and look at the photos provided then you will be ready. The new process 203 was used in gm, ford, and dodge through the 70s behind auto and manual transmissions. Clean the case so that no dirt can get inside when you start to tear it down.
There is a small idler shaft cover on the back of the 205 with 3 small bolts holding it on. The 19701980 4x4 350 turbos came with short rear tailshafts, and were made to work with the np205, and 73up np203, and while the 205 used an adaptor with coupler inside it to spline into the transt case. You can contact us by calling 8777764600 or 4078721901. Atsg cdrom manual for np203np205 transfer case 1969up. May 22, 2009 any transfer case that can be twin stickd can disengage the front axle while running the rear in low range. It was supplied in many gm, ford, international and dodge fullsize trucks. Jordan,mn members transfer case 203 manual preferred customers preferred. Transfer case np203 rebuild kits drawing and parts list. Big, heavy, and relatively strong despite its chaindrive, this box can be converted. In 1971, new process introduced a model np203 chaindriven, and np205 geardriven transfer case. The dana 20 is a cast iron transfer case, having a passengerside front output and a centered rear output. Left side drop output and has a low gear ratio of 2. Installing the conversion allows the case to act like a part time case.
Atsg transfer case rebuild overhaul manual np203 np205 203. One response to 203 transfer case in early bronco daniel hart says. The rugged and reliable, parttime, np205 with a fixed rear output shaft was also used from 19731979, primarily on vehicles with the sm465 4 speed manual transmission. For off road use, the 203 had a lock position in which the differential was locked making the front and rear outputs spin at the same speed like a normal part time transfer case. The purpose of the conversion is to save driveline wear. The owners manual recommendation is to use sae 30 nondetergent. Mile marker transfer case conversion kits free shipping on. The fulltime fourwheeldrive np203 transfer case is one of the most standard items found in 70s fullsize 4x4s. W hen most people think of the new process 203 transfer case, two things come to mind. Mar 09, 2009 the owners manual recommendation is to use sae 30 nondetergent motor oil. The new process np208 transfer case is a strong, reliable unit that features 2. I followed the instructions per the gm shop manual and got a lot of slop out of the shifter.
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