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Yeah - that's the Polaris way - take a pic and post it - we'll try to figure it out for you -

The last 04 Trailblazer I worked on had a VIN of 4XABA25C342504371

First 3 digits are the World Manufacturer Index (4XA identifies as US made Polaris) - BA25C is the model designation (25 indicated 250) - 3 is a check digit (calculated with a algorithm) 10th digit indicates model year - 9th digit is the plant code - last 6 digits is the production sequence

Using the example, perhaps you can decipher your VIN
 

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Vehicle Information
Model Name
TRAIL BLAZER 250
Model Year
2005
Model Number
A05BA25CA
Purchase Date
2/3/2006
VIN
4XABA25C752751054
Engine Serial Number
000000554846

Warranty
Factory Warranty
Start Date
2/3/2006
Expiration Date
8/3/2006
 

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Here's the diagram for a 2005 and parts list. Looks like 2005 and up the housing and axle and some other parts are different than 2004.

1 7670160 Ring, Retaining 1 USAGE
2 7515102 Screw 1 USAGE
3 5133428 Nut, Axle 1 USAGE
4 7547217 Nut, Nylok 3 USAGE
5 5245716 Disc, Brake 1 USAGE
6 5631457 Hub, Brake Disc 1 USAGE
7 7512365 Screw, Cap 3 USAGE
8 7670161 Ring, Retaining 1 USAGE
9 5410889 O-Ring 2 USAGE
9 5410889 O-Ring 2 USAGE
10 3610070 Seal, Lip 2 USAGE
10 3610070 Seal, Lip 2 USAGE
11 3554518 Bearing, Cone, Tapered 2 USAGE
11 3554518 Bearing, Cone, Tapered 2 USAGE
12 3554517 Bearing, Cup, Tapered 2 USAGE
12 3554517 Bearing, Cup, Tapered 2 USAGE
13 5134460 Housing, Axle, Rear 1 USAGE
14 7080306 Fitting, Lubrication 1 USAGE
15 3221192 Link, Connector 1 USAGE
16 5133967 Axle, Rear 1 USAGE
17 3221193-076 Chain, O-Ring 1 USAGE
18 7542439 Nut, Nylok 6 USAGE
18 7542439 Nut, Nylok 6 USAGE
19 5211585-067 Guard, Sprocket, Black 1 USAGE
20 5630586 Spacer, Sprocket Guard 1 USAGE
21 3222109 Sprocket, 36T 1 USAGE
22 1520795 Asm., Hub, Sprocket [Incl. 24] 1 USAGE
23 7515528 Bolt 3 USAGE
24 7518378 Stud
 

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Your sprocket hub has the shoulder that slides over the stopper ring broken off. My guess is that as you tighten the nuts on the other side, the hub pushes the ring out of it's groove and it slides down the axle or the nuts run out of threads and the hub never gets pushed over the ring. And I agree with polman - the VIN is 4XABA25C752751054 and it is an 05 model 250
 

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Discussion Starter #27
Well I know for sure I need new bearings. What would you suggest for an axel housing? Thanks for figuring out the vin number!
 

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Hub

Do you think the hub sprocket is shot?
From the pic I would say yes, but it's best guess - it appears to have the shoulder that retains the stopper ring in the groove broken off it - if the hub will slide over the ring so it is pretty much hidden, then it will be OK - if the ring is not inside the hub, it will push out of it's groove and everything will come loose.
 

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Discussion Starter #32
Ohhhhh. The ring isn’t in the hub. It’s always visible. I’m thinking about buying a used rear end at this point
 

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I've bought a lot stuff online and only got burned once - item was advertised as new - what I got was used - Ebay buyer protection helped and I got a partial refund on the item - the item was usable and in good condition, but it's just the fact it was advertised as new when it was not - it was even packaged in the OEM over wrap.

Try powersportsnation.com - I have bought from them and never had a problem - when in doubt, ask - the folks on here are happy to help you out.

Anybody got a favorite used part supplier? I think I'll start a thread with that subject. :nerd
 

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Discussion Starter #38
Hey guys! I’ve been having a hard time finding what I need. I guess lots of bikes use the same parts. Anyway, I noticed a couple dings and scratches on the axel where the housing sits. They’re on the sprocket side. The diameter on the sprocket side is much smaller than the caliper side. So the bearing on the right is way loose compared to the left. Now I’m assuming the axel is junk. Yes? No? Thank you!!
 

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The axle can be repaired depending on the damage. Take the bearing (a new one or at least an undamaged used one) and the axle to a machine shop. Ask for an estimate on how much to weld up the damaged part and re-machine it for a proper fit if a used one cannot be found.

Again, pics of the part in question would be helpful.
 
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