diff --git a/torsen.scad b/torsen.scad
index 2e631a6..7b41fb9 100644
--- a/torsen.scad
+++ b/torsen.scad
@@ -16,7 +16,7 @@ module torsen_diff_36t() {
             translate([0, 5, 0]) rotate([90, 0, 0]) cylinder(r=30, h=2, center=true, $fn=100);
             translate([0, -5, 0]) rotate([90, 0, 0]) cylinder(r=30, h=2, center=true, $fn=100);
             rotate([90, 0, 0]) cylinder(r=2.6, h=10, center=true);
-            translate([0, 4, 0]) rotate([90, 0, 0]) cylinder(r=4.0, h=8, center=true);
+            translate([0, 4, 0]) rotate([90, 0, 0]) cylinder(r=3.8, h=8, center=true);
         }
         translate([0, 0, 8]) difference() {
             union() {