Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

Welded rear and np203?

Discussion in 'The Garage' started by 78Suburban, Nov 23, 2005.

  1. 78Suburban

    78Suburban 1/2 ton status

    Joined:
    Jul 4, 2005
    Posts:
    2,609
    Likes Received:
    0
    Location:
    Georgia
    Does any body have experience with Full Time 4 wheel drive and a welded rear or spool? I am thinking of perhaps welding my rear end, but I am not planing on converting my truck to part time. Has anyone run a setup like this? How did it do on the street, or wheeling? The full time 4 wheel drive handles quirkey enough as it is... will welding (or spooling) make my transfercase go crazy?
    thanks,
    James :bow:
     
  2. RustBuket

    RustBuket 1/2 ton status

    Joined:
    Feb 21, 2003
    Posts:
    1,618
    Likes Received:
    0
    Location:
    Saskatchewan, Canada
    Its not gonna matter if its full time or part time if its the rear diff. The rear diff is always receiving torque anyways. You will notice a reduced turning radius and some "push" of the front tires will turning. Maybe churping in tight corners. Accelerated wear of the tires also occurs.
     
  3. 78Suburban

    78Suburban 1/2 ton status

    Joined:
    Jul 4, 2005
    Posts:
    2,609
    Likes Received:
    0
    Location:
    Georgia
    So is anyone running this setup? I'm just wondering what will happen, since the transfer case "senses" which tires are slipping .......... will the rear get all the power, or the front? It just seems that something will definitely change if the rear is welded...
    Whad about a detroit, does anyone run ones of those with a full time 4 wheel drive rig?
     
  4. 74757685k5

    74757685k5 1/2 ton status

    Joined:
    Nov 13, 2004
    Posts:
    258
    Likes Received:
    0
    Location:
    montana
    the T-case dosent sence anything. It is just a differential in the T-case. like in a axle.
     
  5. 78Suburban

    78Suburban 1/2 ton status

    Joined:
    Jul 4, 2005
    Posts:
    2,609
    Likes Received:
    0
    Location:
    Georgia
    thats what I meant by sensing, the differentiating action......... will that be affected by a rear spool? Just wondering if anyone has run a setup like this. :bow:
     
  6. 78Suburban

    78Suburban 1/2 ton status

    Joined:
    Jul 4, 2005
    Posts:
    2,609
    Likes Received:
    0
    Location:
    Georgia
    ttt
    is anyone running full time 4 wheel drive with a spool or weld in the rear axle?
     
  7. crawlink5

    crawlink5 1/2 ton status

    Joined:
    Oct 9, 2003
    Posts:
    431
    Likes Received:
    0
    Location:
    Spring, TX
    I'm not running that setup but here's my thoughts.

    Leaving the tcase fulltime is almost like leaving the rear open.

    You really don't want a spool/weld on the street. You'll hate it.

    You don't want full time tcase offroad. I think milemarker still has a parttime kit for tcase.

    http://www.milemarker.com/4x2conversion.html
     
  8. 78Suburban

    78Suburban 1/2 ton status

    Joined:
    Jul 4, 2005
    Posts:
    2,609
    Likes Received:
    0
    Location:
    Georgia
    I take it, no one is running this setup........ here's my concern, tell me if its valid: When the rear starts barking around curves on pavement, will it shoot all of the power to the front, because it has less traction? or am I minunderstand the concept of the NP203?
     
  9. crawlink5

    crawlink5 1/2 ton status

    Joined:
    Oct 9, 2003
    Posts:
    431
    Likes Received:
    0
    Location:
    Spring, TX
    The 203 is not that sophisicated. It really does not sense anything. All it does is provide a little "give" between the front and the rear on pavement so the tcase doesn't bind and explode.

    If you were only closer. I'm pulling a 203 parttime out today. But I think it's already sold. The man said he wanted it.

    So, what kind of rear are you welding?
     
  10. 78Suburban

    78Suburban 1/2 ton status

    Joined:
    Jul 4, 2005
    Posts:
    2,609
    Likes Received:
    0
    Location:
    Georgia
    14 bolt Full Float :D
    I think I'm gonna definitely run the T-case as a full time unit for the next year or two, since my budget is low, and its a play toy only truck ;) I still haven't looked inside the pumkin, I'm really hoping its open, and not a Gov bomb, but we'll see :wink1:
     
  11. 89GMCSuburban

    89GMCSuburban 1/2 ton status

    Joined:
    Nov 15, 2001
    Posts:
    3,005
    Likes Received:
    0
    Location:
    Thornton, CO
    If it's open, I'd just save the pennies and get a Detroit....then you can still actually turn...lol
     
  12. 78Suburban

    78Suburban 1/2 ton status

    Joined:
    Jul 4, 2005
    Posts:
    2,609
    Likes Received:
    0
    Location:
    Georgia
    what if its a gov bomb? is it possible to weld a gov lock?
     
  13. odoa3

    odoa3 1/2 ton status

    Joined:
    Mar 31, 2004
    Posts:
    1,638
    Likes Received:
    0
    Location:
    Anchorage, AK
    I am running a solid Yukon spool with a 203. Haven't really drove it much, but I noticed the decreased turn radius. If it is going to be driven on the road much, go with a Detroit. The 203 does not make a difference in actually driving as far as I can tell. Not sure if this answering your questions - let me know if you have other questions.
     
  14. 78Suburban

    78Suburban 1/2 ton status

    Joined:
    Jul 4, 2005
    Posts:
    2,609
    Likes Received:
    0
    Location:
    Georgia
    have you converted yours to part time, or is it still full time?
    thanks,
    James
     
  15. brotha b

    brotha b Registered Member

    Joined:
    Nov 4, 2005
    Posts:
    31
    Likes Received:
    0
    Location:
    vernal, Ut
    some 203s have spider gears which will affect this setup
     
  16. KevinsK5

    KevinsK5 1/2 ton status Premium Member

    Joined:
    Jan 17, 2005
    Posts:
    257
    Likes Received:
    13
    Location:
    Golden, CO
    I have what you're asking about

    78Suburban,
    I am running this setup in my 78 Jimmy. I have a 203, and a welded 12 bolt rearend. I don't mind at all having the rear welded, as it is not a daily driver. The truck does have a little bit of the "push" they were talking about, and the tires leave stripes and make noise around corners. The thing I hate is that BS full time transfer case, heres what I do with it. I have lockout hubs on the front and I run the T-case in "Loc" with the hubs unlocked when I'm just driving around. I lock the hubs in as necessary when wheeling. When you run your full time in "H" or "L" (not Loc) thats one more open diff to deal with, and I HATE open diffs. When you put it in "Loc" it locks the diff out and locks both driveshafts together. With my setup I just have to use judgement in the given situation for which range the T-case should be in, or if the front hubs should be locked or unlocked. I absolutely can't drive it on pavement with the hubs locked in and the T-case in "Loc." I haven't tried it but I know something will break if I do. Hope that answers your question. Kevin
     
  17. 78Suburban

    78Suburban 1/2 ton status

    Joined:
    Jul 4, 2005
    Posts:
    2,609
    Likes Received:
    0
    Location:
    Georgia
    I'm looking to see if anyone has the stock (drive flanges in the front, not hubs) full time setup, with a welded or spooled rear. I'm not worried about the loc positions, but about what will happen in the low and hi positions on the street... will the open diff in the 203 jolt all of the power to the front when I take a curve?
    thanks,
    James
     

Share This Page