SM465/NP241C spline engagement - Pirate4x4.Com : 4x4 and Off-Road Forum
 
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Old 05-09-2010, 06:41 PM   #1 (permalink)
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SM465/NP241C spline engagement

I'm planning on putting the above combo into my Jeep. I've got the 465 with the long, 32 spline output. The 241 I have is from a '98 chev 3/4 ton and has a drivers side output.

I am using the adapter that came with the 465, it is a tad over 10" long and has the round 6 bolt pattern on the t-case end (I believe it must have been in front of a 205 with the long stickout input gear).

So my issue is when I bolt everything together, I only end up with about 7/8" of spline engagement between the 2. Plus, I have to use a clocking ring on the 241 in order to get it up closer to the body otherwise it hangs down like a mofo, so i lose 3/8 from that, bringing me down to 1/2".

Im assuming I have the wrong adapter for this application, or I need to modify the one I do have to work. I'd be walking on thin ice if I ran it this way so I need some another option.

Ideas? Suggestions? Part #'s?
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Old 05-09-2010, 07:54 PM   #2 (permalink)
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you need a 456 that had a 208 on the back of it, more common then a 465-205 combo so should be easy to track one down.

how much of the output shaft sticks out of the tranny you have now? if i remember right i think mine was just about even with the mounting flange.
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Old 05-09-2010, 10:06 PM   #3 (permalink)
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Mine is a little over an inch shy of the mounting flange, and the stickout on the t-case is pretty close to 2 inches.

So you're saying there were different lengths of the 32spline output for the 465 depending on the t-case?
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Old 05-09-2010, 10:16 PM   #4 (permalink)
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yes im not 100% sure but i think the 205 with the round pattern had a shorter output shaft on the 465, but anyways a 241 has the same input dementions as a 208 so thats the trans you want to find or comfirm what trans you have right now would be a start.
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81 malibu 454 gutted street machine
84 western star 4964 8V92 detroit diesel 13 speed
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Old 05-10-2010, 05:56 AM   #5 (permalink)
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In the mid 80s all 4wd 465s had the same length 32 spline. When I swapped my 84 to stick, the tranny was from a mid 85-ish 3/4 that had a 208. I put a 205 and correct adapter off an 86 1 ton. IIRC had a couple inches of engagement.
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Old 05-10-2010, 05:58 PM   #6 (permalink)
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get the adapter for an sm465 to np208 and it will work with the np241.
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Old 05-10-2010, 07:05 PM   #7 (permalink)
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Quote:
Originally Posted by Giviner View Post
Mine is a little over an inch shy of the mounting flange, and the stickout on the t-case is pretty close to 2 inches.

So you're saying there were different lengths of the 32spline output for the 465 depending on the t-case?
the sm465/205 32 spline adapter is longer than the 208/241 adapter. there were factory 465/241 combos, but they arent too common, at least around here.
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Old 05-10-2010, 09:25 PM   #8 (permalink)
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Ok, right on guys that's what i needed to know. I have the wrong adapter for this t-case. I will post up a want ad for the correct one.

Just looked and Advance has one for $276!!! Yikes.

Anyone got one they are looking to get rid of?
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Old 05-10-2010, 11:42 PM   #9 (permalink)
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Quote:
Originally Posted by Giviner View Post
Ok, right on guys that's what i needed to know. I have the wrong adapter for this t-case. I will post up a want ad for the correct one.

Just looked and Advance has one for $276!!! Yikes.

Anyone got one they are looking to get rid of?
where abouts in alberta are you?
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84 K30 tubed truggy, built 496,465,208, 2.5 ton rockwells , 18.4x16.1 tractor tires
93 gmc big block 8.1L solid axle dually tow pig
07 classic duramax
81 malibu 454 gutted street machine
84 western star 4964 8V92 detroit diesel 13 speed
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Old 05-11-2010, 05:40 AM   #10 (permalink)
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where abouts in alberta are you?
Ft. McMurray
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