Posted by Mike (Montreal, Quebec) on Saturday, September 09, 2006 at 10:28AM :
In Reply to: Re: NP420 Rebuild Kit posted by Spencer on Saturday, September 09, 2006 at 1:44AM :
Thanks Spencer,
For reference, here are the bearing numbers for the late NP420:
Input bearing: 6209N (ZN suffix for shielded version) or 1209SL
Output bearing: 6307N or 1307L
Front countershaft bearing: 6207N or 1207SL
Rear countershaft bearing: BCE2816 or M28161
Main shaft pocket roller bearings: Q15902 (14 loose needle bearings)
Bearing-wise, my understanding is that the only difference between the early and late type NP420 lies in the main shaft pocket bearing being different but I can't confirm as I have never worked on an early NP420.
Vaughn, you may want to add this info along with Spencer's oil seal info to the PIF.
Regards,
Mike