Any help would be apprecated.
I'm trying to get a copy of my build sheet to get information on gears, drive line. The tag is missing of of my rear end and all places I've tried have led to dead ends.
I have the vin number but can't get any help.  

I do not know why this is such a problem for you. Axle, Tcase and tranny types are easy to figure out visually and as far as axle ratio. Simple jack up one front tire in 2wd (with hubs engaged if you have them) and rotate tire one full turn while counting drive shaft rev's. Multiply drive shaft rev times 2 and you have your axle ratio. (you double it because of spider gears with one tire stationary)  

never mind.... whatever  

theres a parts house that might help,umm,wait
LMC TRUCK,LUCK TO YA!  

WHAT IS THE YEAR OF YOUR PUP CAUSE IF ITS 90 OR NEWER I CAN RUN YOUR VIN AND GET YOU THE OPTION CODES YOUR AFTER.  

It would really help if we knew the Year/Make/Model of the truck in question... that alone we may be able to tell you what you have...  

4WOR Web Editor:
It would really help if we knew the Year/Make/Model of the truck in question... that alone we may be able to tell you what you have...

This a very true on the parts used and ratio can be figured out pretty easy as I mentioned above so there is no show stoppers or dead ends. I feel OP is making a much bigger deal/problem out of this than it is.  

TO PEOPLE THAT HAVENT BEEN AROUND 4X4S ALL THERE LIFE OR ITS THERE FIRST TIME W/THEIR RIG THEN ITS GONNA BE REALLY HARD TO LOOK AND SAY WHAT A PARTS MODEL NAME IS...YOU KNOW ANYBODY CAN LOOK AT A T CASE AND SAY THATS A T CASE BUT IF ITS NEW TO YA YOUR NOT GONNA KNOW WHAT MODEL OF T CASE IT IS...THATS WHY YOU GET THE VIN, I CAN RUN IT FOR EDUCATIONAL PURPOSES ONLY AND TELL YOU WHAT CODE IT IS AND WHAT IS IS SO YOU CAN IDENTIFY LATER IN LIFE...NOTHING IS THAT HARD TO DO.  

yeah... and haynes and chilton's manuals usually have a vin decoder chart in them... that's usually your best bet is to buy a haynes or a chiltons manual from your local parts store and go through it... it's usually a pretty good resource to have around... i believe you can even go online and get some of the information from their websites...  

keithpapa:
TO PEOPLE THAT HAVENT BEEN AROUND 4X4S ALL THERE LIFE OR ITS THERE FIRST TIME W/THEIR RIG THEN ITS GONNA BE REALLY HARD TO LOOK AND SAY WHAT A PARTS MODEL NAME IS...YOU KNOW ANYBODY CAN LOOK AT A T CASE AND SAY THATS A T CASE BUT IF ITS NEW TO YA YOUR NOT GONNA KNOW WHAT MODEL OF T CASE IT IS...THATS WHY YOU GET THE VIN, I CAN RUN IT FOR EDUCATIONAL PURPOSES ONLY AND TELL YOU WHAT CODE IT IS AND WHAT IS IS SO YOU CAN IDENTIFY LATER IN LIFE...NOTHING IS THAT HARD TO DO.

If you mention make, year and model though someone can quickly give you a answer as what it came with hardware wise. This is not rocket science here.  

I agree on Snoman's reply. It isn't hard to call a parts department at a dealership and talk to a parts guy and have him check your VIN numbers. That's what those things are placed on the vehicle for. If all else fails, if you know how to pull the diff cover and check it out visually, by all means do it. Then you can see if there is any other problems. If not, take it to a repair shop. I really like how appreciated this "Tired of dead ends" guy is, "never mind...whatever". Maybe you'll find it out that there is alot of guys here that know what they're talking about and appreciate their knowledge and help. Good luck  

that s what i said, is to get vin to run for option codes and to tell what excactly the rig has so theres no guessing...not all rigs are alike,some come w/3 or 4 diff trannys 2 or 3 diff t cases, rear gear ratios.you cant look at a rig and say it has an np205 when it probably doesnt...just by yr make and model on my 93k1500 i knew it had a granny low gear but couldnt remember what its model name was and someone swore that i had one tranny when indeed i had the nv4500...yes nothing is that hard to do and running a vin # takes less time to do, to find out what the pup has for sure...being in the parts bizz theres nothing i hate more than someone giving me wrong info cause they say it has one thing then in reality it has something else and the customers pissssed cause he got the wrong part,you give the vin then theres no mistake.  

keithpapa:
that s what i said, is to get vin to run for option codes and to tell what excactly the rig has so theres no guessing...not all rigs are alike,some come w/3 or 4 diff trannys 2 or 3 diff t cases, rear gear ratios.you cant look at a rig and say it has an np205 when it probably doesnt...just by yr make and model on my 93k1500 i knew it had a granny low gear but couldnt remember what its model name was and someone swore that i had one tranny when indeed i had the nv4500...yes nothing is that hard to do and running a vin # takes less time to do, to find out what the pup has for sure...being in the parts bizz theres nothing i hate more than someone giving me wrong info cause they say it has one thing then in reality it has something else and the customers pissssed cause he got the wrong part,you give the vin then theres no mistake.

Not Jeeps (nor most Detroit vehicles) They use one tcase type with model, same with tranny. If is is a stick, it has a made from 89 to 2001 with a 4cyl it is a AX5 tranny. From 87 to 89 it could be either a AX or BA10/5. (easy to tell apart)  82 to 86 5speed a T5. With a 6 is it a T6, 82 to 85, BA10/5 from 87 to 89, AX15 from 89 to 01 and a NP3550 after that for 5 sp. Front axle , a D30 since about 76 and still today except rubicon. (D44 front and rear) Rear axle is a D35 since 87, 76 to 86 a AMC 20. A few around 84 to 86 made it out with a D35 but these two axles a REAL easy to tell apart.(AMC20 has a big axle shaft nut on hub) On Tcases , a Dana20 from 72 to 79, Dana 300 80 to 86, NP207 from 87 to 89 and NP231 from 89 to present. Rare 76 to 79 automatic CJ's had a BorgWarner 13-39 quadratrac full time 4x4 drive. What is to point of all this? (I could list what automatics where used too) If you state the year and make and model it is VERY easy to figure out what it came with without a VIN number and as I stated earlier, even axle ratio can be verified in a few minutes with a jack without taking anything apart.  

i know you know alot SNO, thats fine and dandy if you know whats on every rig but alot of people dont know and thats why its hard to see and say what it is...i dont know everything and find it hard sometimes to  tell, i havent seen an ax5 and couldnt tell what it looks like.jeeps yes stuck w/pretty much 1 tcase 1 axle 1 tranny for many yrs but other outfits stuff multiple tcases,axles,trannies and is hard to differentiate them from another unless youve seen them and know for sure what they are. and yes its easy to jack pup up and find ratio this way but what happens if someone dosnt have a jack or any tools? you cant fault them for that, you want to try and make it easy for someone in that boat to see and learn properly so they can give correct info.  

It is hard to see someone trying to learn this stuff when they don't have any knowledge or tools or any of the equipment to do the job. There is always a day to start and I'm sure that a local auto shop would be happy to let someone take a tour of their place to let the guy get basics on what he needs to get for tools. One guy mentioned in here about a Haynes or Chilton repair manual, that is a good place to start as far as doing the job and in the manual it will tell step by step process on how to do repairs. I don't always agree on the steps they explain but it gives the guy that has little or no experience the steps they need to do the job. As far as the subject with "which drivetrain do I have" I can only advise a person to use the internet or talk to a dealership to find out what it is you have if one doesn't know anything about their vehicle. If I bought a vehicle, I'd make sure I'd know what it had. But that is how things are these days, put gas in it and on down the road ya go. I know a guy that drove a truck for 36,000 miles before he changed the oil the first time because that was when his warranty was up and it was his first truck. Lack of knowledge, yes. But everyone has their "individuality".