Guest Posted October 29, 2001 Share Posted October 29, 2001 Hi..I have a 48 Buick model 56-c that has the 3 speed and standard 454 ratio rear axle...need higher gear ratio! What years, models will interchange? I know buick also made 410,390,363 ratios for these cars, anybody got one for sale??! does anyone make new?Help!<BR>M Burnett Link to comment Share on other sites More sharing options...
palbuick Posted October 29, 2001 Share Posted October 29, 2001 There was a long discussion some time ago about he rear end ratios. Seems that they will fit from 1941 through 1955, there is a wide range of gear ratios from these years.<P>Good luck<P>Jim Schilf / palbuick@aol.com Link to comment Share on other sites More sharing options...
Jyrki Posted October 30, 2001 Share Posted October 30, 2001 The gears themselves will fit thru 1953. 1954-55 are different, but then you can swap the whole 54-55 third member to an earlier axle housing. Try any of the Buick-specialized boneyards listed on my links page, <A HREF="http://www.nic.fi/~marlin/buicklinks.htm" TARGET=_blank>www.nic.fi/~marlin/buicklinks.htm</A> Link to comment Share on other sites More sharing options...
Guest Posted October 30, 2001 Share Posted October 30, 2001 Links to previous discussions<BR> <A HREF="http://www.aaca.org/cgi-bin/ultimatebb.cgi?ubb=get_topic&f=2&t=001569" TARGET=_blank>http://www.aaca.org/cgi-bin/ultimatebb.cgi?ubb=get_topic&f=2&t=001569</A> <BR> <A HREF="http://www.aaca.org/cgi-bin/ultimatebb.cgi?ubb=get_topic&f=2&t=002659" TARGET=_blank>http://www.aaca.org/cgi-bin/ultimatebb.cgi?ubb=get_topic&f=2&t=002659</A> <BR> <A HREF="http://www.aaca.org/cgi-bin/ultimatebb.cgi?ubb=get_topic&f=2&t=002959" TARGET=_blank>http://www.aaca.org/cgi-bin/ultimatebb.cgi?ubb=get_topic&f=2&t=002959</A> <P>Would think that swapping the complete differntial assembly from brake drum to brake drum may be easiest. <P>Does any one know if the torque tubes are the same lenght for the different years ?<p>[ 10-30-2001: Message edited by: 1939_Buick ] Link to comment Share on other sites More sharing options...
Guest Posted October 30, 2001 Share Posted October 30, 2001 Try Wheatbelt(ad in the Bugle) Your best bet is to take the assembly out of the front of the housing as a unit.Ken is very knowlegable on Buick parts. Link to comment Share on other sites More sharing options...
Guest Posted October 31, 2001 Share Posted October 31, 2001 I have a complete 55 rearend & torque tube in good shape if that will swap ? <BR>unclepete@foxinternet.net Link to comment Share on other sites More sharing options...
Guest Posted November 3, 2001 Share Posted November 3, 2001 Thanks for all the posts everybody, I just ordered a 3.60 gear set from Wheatbelt, and will let you all know what happens when I try to install it, wish me luck! M. Burnett Link to comment Share on other sites More sharing options...
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