The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1947 - 1959 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 02-18-2026, 10:42 AM   #1
Steveoreno
Junior Member
 
Join Date: Mar 2011
Location: Penn Yan, NY
Posts: 74
1955.2-1961 Ring and Pinion Question

I am restoring a 59 NAPCO 3100 and discovered that the splines on my 3.90 pinion are toast. Does anyone know of a manufacturer that carries the 3.90 ring and pinion? I have been able to find other ratios but not the 3.90 and because it's a NAPCO I have to have the same ratio as the front differential. Thanks! -Steve-
Steveoreno is offline   Reply With Quote
 

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 04:06 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2026, vBulletin Solutions Inc.
Copyright 1997-2025 67-72chevytrucks.com