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73-87 Chevy _ GMC Trucks => 4 Wheel Drives => Topic started by: Big Daddy on April 11, 2016, 04:22:36 pm

Title: Np205 syncro question
Post by: Big Daddy on April 11, 2016, 04:22:36 pm

82 k30 with syncro t/c. Did a complete tear down to replace seals and gaskets.
Noticed some wear and chipped gear on large idler gear. Replaced the idler assembly
with parts from another case but then I read somewhere that the idler is different
between syncro cases and non syncro cases. Is that true? If so, can I change front
output to non syncro (shift fork, rear cover, etc)

Title: Re: Np205 syncro question
Post by: Engineer on April 12, 2016, 06:32:13 am

Do they look physically the same? If so they should interchange. Ratios didn't change so tooth count shouldn't be an issue.

Title: Re: Np205 syncro question
Post by: Big Daddy on April 12, 2016, 05:59:55 pm

guess Ill be shopping for a parts t/c

Title: Re: Np205 syncro question
Post by: Big Daddy on April 16, 2016, 04:53:56 am

Not to bad of a swap. Took about an 1 1/2 hours

Title: Re: Np205 syncro question
Post by: Engineer on April 17, 2016, 06:11:29 am

Good deal.