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xtreme 4x4 allison -203/205

Discussion in 'The Garage' started by 79k20350, Jan 8, 2006.

  1. 79k20350

    79k20350 3/4 ton status

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    they went to a/a and got a splined adaptor, clocking ring and adpater plate. much easier than i though it would be...
     
  2. 6.2puller

    6.2puller 1/2 ton status

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    Yes and No, they didn't get an adaptor. They got a clocking ring and a NP 6bolt pattern spacer to make up for the spud shaft. They then drilled and tapped the 6 bolt NP pattern into the 203 range box. You should be able to make this bolt on by using a Ford or late Dodge 203 that allready has the NP pattern.
     
  3. Ian from Xtreme

    Ian from Xtreme Registered Member

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    Yes and No, although the Dodge 203 extension housing you think would work, it did not. The real issue was the spline count on the Allison. 29 Spline, then we had to make up the length of the shaft with adapters. To do it again, I would have had the output of Allison Re-Splined when it was being rebuilt to a 32 spline output. That would have been the best way, but since we were the first people doing this anywhere, we kind of had to go blind. It did work out though.

    Ian
     
  4. oatsk5

    oatsk5 1/2 ton status Premium Member GMOTM Winner

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    so ian are we gonna see the gorrila at the annual run in oct
     
  5. Ten_Bucks

    Ten_Bucks 1/2 ton status Premium Member

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    Ian, welcome to CK5!
     
  6. Ian from Xtreme

    Ian from Xtreme Registered Member

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    I would love to be able to say yes, but I am not sure when it will be officially finished. Right now I am shooting for mid June but that is if everything goes right.

    Send me the info on the run in October and I will put it on the "want to go list"
     
  7. 79k20350

    79k20350 3/4 ton status

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    how awsome would it be for xtreme to show up to blazer bash?:D
     
  8. dave_90_blazer

    dave_90_blazer 1/2 ton status

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    Ian, Welcome to CK5, this is cool for you to come in here
     
  9. 6.2puller

    6.2puller 1/2 ton status

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    So you are saying the Dodge 203 that has the NP 6 bolt pattern on it did not mate to the Alisons adaptor with the NP 6 bolt pattern? I know you still need the spud shaft to change the splines (or respline like you said) and if you go the spud shaft route you need a spacer to take up the length but it should work. AFAIK the Dodge NP pattern is the same as any other NP pattern.
     
  10. rdn2blazer

    rdn2blazer 1 ton status Premium Member

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    Ian, welcome, cool to see you post here. are you going to become a member or just visiting? either way glad to have ya here. have Jessi give a shout out and say hello, that would be cool too.
     
  11. Leadfoot

    Leadfoot 1/2 ton status Premium Member

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    A member from another forum and I were discussing the use of a multi-range t-case behind the Allison along with a tranny controller. He is under the impression that you will not be able to use low range without problems. I'm assuming you have that figured out (or that it is not an issue like he thinks). Do you have any input on this?

    Thanks.

    Here is a link where it's discussed: http://www.dieselplace.com/forum/showthread.php?t=60844
     
  12. Ian from Xtreme

    Ian from Xtreme Registered Member

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    Don't see really how it could be an issue....The Allison is a stand alone unit, with speed sensors at the input and out put. I know some GM units use the speedo sensor as additional info for the PCM but I do not believe this trans is like that....
     
  13. sapper

    sapper 1/2 ton status GMOTM Winner

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    Is the engine for that truck done? If so what are the numbers?
     
  14. Ian from Xtreme

    Ian from Xtreme Registered Member

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    The Numbers!!!

    Just finished it last week, the prelim Dyno numbers before official tuning is 1113 Lb/ft, and 770hp at 3800RPM. But the coolest thing is how it sounds!!!! Nothing like a diesel more like a monster Big Block and not an once of black smoke out the tail pipes soooooo sweeeeet!!!!!

    I am now looking at different traction bar options........
     
  15. BranndonC

    BranndonC 3/4 ton status

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    awesome man, that sounds sweet. cant wait to see it.
     

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