<TABLE cellSpacing=1 cellPadding=6 width="100%" border=0><TBODY><TR><TD colSpan=2><TABLE width="100%" border=0><TBODY><TR><TD style="PADDING-TOP: 4px" vAlign=top colSpan=2>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]1972 128 diff ratio??<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial]April 25 2000 at 6:24 AM[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<SCRIPT language=Javascript> <!-- var n54_em; n54_em = ""; n54_em = n54_em + "p";n54_em = n54_em + "h";n54_em = n54_em + "i";n54_em = n54_em + "l";n54_em = n54_em + "l";n54_em = n54_em + "i";n54_em = n54_em + "s";n54_em = n54_em + "j";n54_em = n54_em + "@";n54_em = n54_em + "h";n54_em = n54_em + "l";n54_em = n54_em + "t";n54_em = n54_em + "h";n54_em = n54_em + ".";n54_em = n54_em + "s";n54_em = n54_em + "e";n54_em = n54_em + "s";n54_em = n54_em + ".";n54_em = n54_em + "c";n54_em = n54_em + "u";n54_em = n54_em + "r";n54_em = n54_em + "t";n54_em = n54_em + "i";n54_em = n54_em + "n";n54_em = n54_em + ".";n54_em = n54_em + "e";n54_em = n54_em + "d";n54_em = n54_em + "u";n54_em = n54_em + ".";n54_em = n54_em + "a";n54_em = n54_em + "u"; document.write("Steve P"); // --> </SCRIPT>Steve P <NOSCRIPT></NOSCRIPT> [/FONT]</TD></TR><TR><TD vAlign=bottom colSpan=3><HR></TD></TR><TR><TD colSpan=3>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Can anyone tell me the ratio of a 1972 128 diff. I want to use a
closer ratio diff to increase the cruising speed of my 78 X1.9.
Ive heard that the 128 diff is suitable for this having the same
bolt pattern and a close ratio. <!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top noWrap align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[/FONT]</TD></TR></TBODY></TABLE></TD></TR><TR><TD>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]Author[/FONT]</TD><TD>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]Reply[/FONT]</TD></TR><TR><TD vAlign=top noWrap width="17.9%">[FONT=Trebuchet MS, Verdana, Tahoma, Arial]Ulix[/FONT]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 15px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Ratios<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]April 25 2000, 1:31 PM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 15px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Steve,
As far as 4-speed X1/9s go, the '74 and euro models had a 4.08, the later ones had a 4.42.
128s may have been similar.
You can also get a 3.76 or something like that from a Strada.
Courtney should know the answer to your question.
Ulix<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[/FONT]</TD></TR></TBODY></TABLE></TD></TR><TR><TD vAlign=top noWrap width="17.9%">[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<SCRIPT language=Javascript> <!-- var n54_em; n54_em = ""; n54_em = n54_em + "c";n54_em = n54_em + "j";n54_em = n54_em + "w";n54_em = n54_em + "a";n54_em = n54_em + "t";n54_em = n54_em + "e";n54_em = n54_em + "r";n54_em = n54_em + "s";n54_em = n54_em + "@";n54_em = n54_em + "u";n54_em = n54_em + "c";n54_em = n54_em + "d";n54_em = n54_em + "a";n54_em = n54_em + "v";n54_em = n54_em + "i";n54_em = n54_em + "s";n54_em = n54_em + ".";n54_em = n54_em + "e";n54_em = n54_em + "d";n54_em = n54_em + "u"; document.write("Courtney Waters"); // --> </SCRIPT>Courtney Waters <NOSCRIPT></NOSCRIPT>[/FONT]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 30px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->128 ratios<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]April 26 2000, 12:16 AM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 30px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->The early 128s had a 4.08, the wagons had 4.42. The late 128s (77 and up I believe) had a 3.76. You can tell a late 128 gearbox by the fork where the clutch cable attaches to the clutch release arm. The early ones have a rounded countersunk hole in the arm, while the late ones have a half-circular fork. The Yugo GVs (w/ 4sp) also had a 3.76. Not sure about the GVX 5sp.<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[/FONT]</TD></TR></TBODY></TABLE></TD></TR><TR><TD vAlign=top noWrap width="17.9%">[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<SCRIPT language=Javascript> <!-- var n54_em; n54_em = ""; n54_em = n54_em + "s";n54_em = n54_em + "t";n54_em = n54_em + "e";n54_em = n54_em + "v";n54_em = n54_em + "e";n54_em = n54_em + "h";n54_em = n54_em + "h";n54_em = n54_em + "@";n54_em = n54_em + "h";n54_em = n54_em + "i";n54_em = n54_em + "w";n54_em = n54_em + "a";n54_em = n54_em + "a";n54_em = n54_em + "y";n54_em = n54_em + ".";n54_em = n54_em + "n";n54_em = n54_em + "e";n54_em = n54_em + "t"; document.write("Steve Hoelscher"); // --> </SCRIPT>Steve Hoelscher <NOSCRIPT></NOSCRIPT>[/FONT]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 45px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->ratios<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]April 30 2000, 9:28 AM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 45px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->The 4 spd Yugo was indeed a 3.76. This ring and pinion will fit the '78 X1/9 4 spd box perfectly. Any of the 128 ring and pinions will fit the X1/9 4 spd gearbox.
You can not fit a 5 spd ring and pinion to a 4 spd gearbox, or a 4 spd ring and pinion to a 5 spd box.
If you want to lower your cruising rpm you will want a taller final drive gear (numerically lower). Your '78 X1/9 4 spd probably has a 4.42 ring and pinion in it now. A 4.08 makes a good compromise, although there are people who prefer the 3.76 too.
Steve
<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[/FONT]</TD></TR></TBODY></TABLE></TD></TR><TR><TD vAlign=top noWrap width="17.9%">[FONT=Trebuchet MS, Verdana, Tahoma, Arial]Mac[/FONT]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 60px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Mark Plaia<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]May 2 2000, 9:02 AM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 60px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Wasn't Mark Plaia using a 3.76 final drive from a Strada gearbox for taller cruising @ lower rpm? -Mac.
<!-- google_ad_section_end -->
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[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial]April 25 2000 at 6:24 AM[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<SCRIPT language=Javascript> <!-- var n54_em; n54_em = ""; n54_em = n54_em + "p";n54_em = n54_em + "h";n54_em = n54_em + "i";n54_em = n54_em + "l";n54_em = n54_em + "l";n54_em = n54_em + "i";n54_em = n54_em + "s";n54_em = n54_em + "j";n54_em = n54_em + "@";n54_em = n54_em + "h";n54_em = n54_em + "l";n54_em = n54_em + "t";n54_em = n54_em + "h";n54_em = n54_em + ".";n54_em = n54_em + "s";n54_em = n54_em + "e";n54_em = n54_em + "s";n54_em = n54_em + ".";n54_em = n54_em + "c";n54_em = n54_em + "u";n54_em = n54_em + "r";n54_em = n54_em + "t";n54_em = n54_em + "i";n54_em = n54_em + "n";n54_em = n54_em + ".";n54_em = n54_em + "e";n54_em = n54_em + "d";n54_em = n54_em + "u";n54_em = n54_em + ".";n54_em = n54_em + "a";n54_em = n54_em + "u"; document.write("Steve P"); // --> </SCRIPT>Steve P <NOSCRIPT></NOSCRIPT> [/FONT]</TD></TR><TR><TD vAlign=bottom colSpan=3><HR></TD></TR><TR><TD colSpan=3>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Can anyone tell me the ratio of a 1972 128 diff. I want to use a
closer ratio diff to increase the cruising speed of my 78 X1.9.
Ive heard that the 128 diff is suitable for this having the same
bolt pattern and a close ratio. <!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top noWrap align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 15px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Ratios<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]April 25 2000, 1:31 PM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 15px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Steve,
As far as 4-speed X1/9s go, the '74 and euro models had a 4.08, the later ones had a 4.42.
128s may have been similar.
You can also get a 3.76 or something like that from a Strada.
Courtney should know the answer to your question.
Ulix<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 30px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->128 ratios<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]April 26 2000, 12:16 AM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 30px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->The early 128s had a 4.08, the wagons had 4.42. The late 128s (77 and up I believe) had a 3.76. You can tell a late 128 gearbox by the fork where the clutch cable attaches to the clutch release arm. The early ones have a rounded countersunk hole in the arm, while the late ones have a half-circular fork. The Yugo GVs (w/ 4sp) also had a 3.76. Not sure about the GVX 5sp.<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 45px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->ratios<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]April 30 2000, 9:28 AM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 45px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->The 4 spd Yugo was indeed a 3.76. This ring and pinion will fit the '78 X1/9 4 spd box perfectly. Any of the 128 ring and pinions will fit the X1/9 4 spd gearbox.
You can not fit a 5 spd ring and pinion to a 4 spd gearbox, or a 4 spd ring and pinion to a 5 spd box.
If you want to lower your cruising rpm you will want a taller final drive gear (numerically lower). Your '78 X1/9 4 spd probably has a 4.42 ring and pinion in it now. A 4.08 makes a good compromise, although there are people who prefer the 3.76 too.
Steve
<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 60px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Mark Plaia<!-- google_ad_section_end -->
[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]May 2 2000, 9:02 AM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 60px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Wasn't Mark Plaia using a 3.76 final drive from a Strada gearbox for taller cruising @ lower rpm? -Mac.
<!-- google_ad_section_end -->
[/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=4 width="100%" border=0><TBODY><TR><TD vAlign=top align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial] [/FONT]</TD><TD vAlign=top noWrap align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]