DaxXx

i have a 4wd truck and the getrag im looking at is from a 2wd truck what do i have to do to convert it to 4wd need help fast please.

DaxXx

i was told i will have to change the imput shaft from a 23 spline to a 29 spline, or maybe it was a 29 to a 23 i cant remember

simplysmn

well first convert the trans to 4x4 you will need a new main shaft and a 29 spline transfer case or buy a 23/29 spline adapter they have been tested to over 700 hp and held up fine then you need pedal's and hydro's this swap is very simple to do I just finished a swap for a guy everything bolt's into place made it really nice . I went the extra step and changed out the steering column . if you can find all the part's it's not bad what I would do is find a complete truck .that way you can sell off what you don't need .

flyboy129

If you don't mind a little fab work, you can always run a divorce mount 205.

simplysmn

Yes you could but think about the extra length of the drive line on front that would be a Pain just put it together Stock .

DaxXx

what transfer case originally came with the manual transmission dodges. I can get the tranny, the pedals, the clutch, should be everything i need to put it in my truck cause im pullin it out of another truck i just need to adapt it to my 4wd.

Philip

The getrag's came with a 29 spline input shaft 205 Tcase.

Your auto has a 23 spline input shaft 205.

You need a getrag main shaft and a 4x4 tail housing. Those two items are hard to find used.

simplysmn

If you watch E Bay or the classified's you can find the part's you need If you already have a auto 205 I would just buy the 23/29 spline adapter and put everything together . the Pedal's are really easy the bracket bolt's to the side of the pedal mount under dash . everything else will fall into place .

flyboy129

He has the 518. The driveshafts will have to be modded anyway. The 727 and the getrag would be a bolt in deal, but the 518 is longer due to the OD unit. The conversion pieces are gonna be a needle in the haystack to find. Not to mention, the sellers on ebay know how hard these items are to come by and price them accordingly. That is why I decided I'm going divorced on my build. There were several divorced models on CL at the time, so I got one. DaxXx, if you want to, you can also machine the smaller bearing bore in the case to the larger size and put the 29 spline input shaft in.

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simplysmn

Yes but doing a divorced T case the front drive line would be way Long in my book and a waste of time because then you would be adding another set of U joint's between the trans n T case . try fining part's where yer broken on side of road . Also by the time he tear's apart the T Case and has it machined he would be money ahead just buying the 23/29 spline adapter and useing what he already own's .

flyboy129

Easy solution on the divorced is 1410s all the way thru. That is stock cummins driveline size. Any parts store has them. They can be changed quickly with minimal tools. A smart person always will carry a couple u joints with them anywhere. They take up hardly any room in a toolbox. A short driveshaft on a divorced setup is not a weak link. The 23-29 adapter will work, but there is just as much risk of that breaking as a u joint. Try finding that part on the side of the road. The torque converter takes alot of the "shock" from the Cummins. With a manual, it comes down to how you drive. Even then, there is more shock on the driveline than an auto has. That is why they put a 29 spline behind the cummins. Less likely to shear splines, coupled with a larger bearing to handle the torque. There are several ways to do it. It really comes down to preference. No one person is wrong or right. I was simply offering one option for utilizing the 2wd transmission he has available. I plan on doing the same thing.

simplysmn

I guess what I was trying to put across why not just do it the way Factory would of done it ? simplerand easier All you have to do is Look for the part's.Yes you can do a Div case but Why . No Sense in it .

flyboy129

For me, it came down to what was available in my area at the time of purchase. I have an aversion to buying anything automotive sight unseen, so I preferred to not use ebay. There were a few pieces on ebay, but they were so expensive, they weren't a viable option. There was nothing on CL within 200 miles dodge diesel wise, and at the time there were about 3 divorced units available for cheap, so that is the route I chose. I preferred a factory setup, but wasn't able to find factory stuff. After 6 months of searching online every day, I got tired of waiting. Made perfect sense to me.

DaxXx

I can get the main shaft and the 23 to 29 spline coupler, but i can't find the tail housing, need asap if anybody has any or knows someone who has one let me know please.

thrashingcows

I'm pretty sure you can use the 4x4 tail housing from a NV4500. Since you can use the Getrag unit on a NV4500, I would make the assumption it would work in the other direction as well?

You can buy new cast iron tail housing for the NV4500 on E-bay.

You got a 23/29 coupler? When I checked not long ago they said they were out of stock?