I was looking at the center support bearing (for my 92 w250 4x4) on rock auto and they list 2 of them, Not sure which one I need. the spicer numbers are different and the I.Ds are different.....any help would be great Thanks.

ANCHOR Part # 6038
Center Support W/Brg 1.5478 I.D - w/SPICER 1480-1550

$9.88
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TIMKEN Part # HB88107A 35mm
Spicer 1280, 1310; 1.38" Brg ID; Rear

$21.79
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Thats what they list

 

I don't know if your year is different from a 90 model. I went out and measured the one I had lengthened for the crew project. I get 1.574" on the rear of the shaft where it exits the support bearing. This 2 piece driveshaft was originally from a 1990 diesel automatic 2WD truck.

 

I know that I needed the larger one for my '89 2wd. I hope Dodge was nice enough to use the same carrier bearing on all first gens

 

I think you need the larger one but you should measure to make sure

 

Larger one.
The small one is for 1/2 ton trucks.

 

Thanks, Wonder why they listed the smaller one under a w250 diesel.....lol oh well.

 

For the same reason they also list under the diesel emisions:
Air Pump Pulley
Air Temperature Sensor
EGR Transducer
Oxygen Sensor
Vapor Canister Filter
Vapor Canister Purge Valve