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NP 208 vs 241

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by MNorby, Apr 7, 2002.

  1. MNorby

    MNorby 3/4 ton status Premium Member GMOTM Winner

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    Just curious, my 208 is dead so I'm trying to decide my path. I read a little about the 241 out of the newer trucks. Are they any better than the 208? Will they bolt in where the 208 sits now behind my 700? I want to do a fixed yoke conversion on teh 208 but if the 241 is better would it be easier? Thanks
     
  2. NewK5Guy

    NewK5Guy 1/2 ton status

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    Get the latest issue of Peterson's 4 Wheel and Off Road. There's a great driveway 241 rebuild. They give the name of a company that sells a fixed yolk conversion for something like $400. That's a bargain to me. Plus, if you find a 1989 241 with the 27 spline input(I think), it will drop in place of the 208. That's what I'm planning as soon as I work out a deal with the guy I'm talking to.
     
  3. joker89blazer

    joker89blazer 1/2 ton status

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    I understand that the 241 had a better oiling system than the 208 it replaced.The 241 has a oil pump, the 208 had a oil slinger.You may need to get trans adapter with the 241.The 241 uses six mounting bolts to the adapter, I think the 208 uses five bolts.I know the rear drive shaft will fit, I have a 208 drive shaft behind my 241
     
  4. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    Nobody currently makes a SYE kit for the 208, but you can get one for a 241. I have a 241 in my blazer and bought a SYE kit from Jesse at High Angle Driveline for around $325.00. As far as if the 241 will direct replace the 208 I am not sure if the adapter is the same or not.
     
  5. K10ANDYKHAMNIC

    K10ANDYKHAMNIC 1/2 ton status

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    the 208 uses 6 bolts , and i modify them for sye for about 150 depending...
     
  6. lt1yj

    lt1yj 1/2 ton status

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    The 241's oiling system is much better than the 208, and the reduction ration in the planetaries is slightly lower. 2:72 compared to 2:65?.

    Cheapest I've found for the 32 spline 241 kit is $275 at:

    http://www.jeepbox.com/np231.htm

    I swapped out my front output shaft for the Dodge version with the 32 spline shaft also. Removed that Saginaw flange for a standard 1330 U Joint.
     
  7. K10ANDYKHAMNIC

    K10ANDYKHAMNIC 1/2 ton status

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    i dont know about the oiling system ....but what is wrong with the flange ? i prefer it .
     
  8. Kennedy

    Kennedy Registered Member

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    A 241 will bolt right in place of a NP208. I am running a 1990 241 with the same adapter/transmission/transfer case mount my 1982 208 used.
     
  9. lt1yj

    lt1yj 1/2 ton status

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    I found the flange yoke was binding at full droop. My front driveshaft was only 31.5" long. The front flange on a drivers side NP241 is about 5" long and the flanged yoke adds about another 1". I replaced it with a 1330 yoke, ground the inner surfaces and did not bind anymore. There's really no way to grind the flange to get additional clearance. My driveshaft is now 37" long. Not that it really matters but the front and rear yokes are exactly the same now so if I were to carry a spare it would work in either.
     
  10. MNorby

    MNorby 3/4 ton status Premium Member GMOTM Winner

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    I think I may know of a 241. It's in a suburban and it's gott be between a 88-91. If I can get it I should take the adaptor too so if that may be different. Does the shafts hook to the tranny the same? Thanks for the help guys /forums/images/icons/smile.gif
     
  11. MNorby

    MNorby 3/4 ton status Premium Member GMOTM Winner

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    ok, I found a wrecked '90 suburban sounds like I could pretty much take parts off. I didn't look too close but it has an auto tranny but no overdrive on column. It is a 3/4 ton suburban. My guess is a t350 but I havn't gotten under it yet. It should have the NP241 correct? How do you tell a 208 from a 241? If it is a TH350 will it bolt to the 700 in my '86? Thanks for the help
     
  12. WakeBoard&4X4er

    WakeBoard&4X4er 1/2 ton status

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    I would think that if it is a 90 and no overdrive the trans would be a 400 w/ 205. just a quess
     
  13. MNorby

    MNorby 3/4 ton status Premium Member GMOTM Winner

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    I;m not sure on teh tranny but the shifting patern is that of a 208 with 2h forward and 4l all back unless there is a update linkage it doesn't resemble a 205. If it is a TH400 with a NP241 I would have to change the input to 27 spline right? If I got a fixed yoke conversion would that include the input? I read on the net somewhere where it was possible o the 241 to be behind TH400's but apparently not TH350's.
     
  14. sinchphoto

    sinchphoto 1/2 ton status

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    is the 241 shorter or longer than the 208?
     
  15. NewK5Guy

    NewK5Guy 1/2 ton status

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    I think it's the same length. The fixed yolk conversion shortens it by 4".
     

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