diff --git a/changelog.txt b/changelog.txt
index b6eed6646..638363d02 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -127,3 +127,6 @@ r500
 -Buffed 105mm howitzer (1810 kg -> 1480 kg, longer round, higher max propellant)
 -Buffed 122mm howitzer (3520 kg -> 3420 kg, longer round, higher max propellant)
 -Rolled back change to MG; they can now fire APHE and HE again
+
+*r535
+-Added double clutch funtionality to double diff gearboxes
diff --git a/lua/acf/shared/gearboxes/doublediff.lua b/lua/acf/shared/gearboxes/doublediff.lua
index e2607fad1..125a7105d 100644
--- a/lua/acf/shared/gearboxes/doublediff.lua
+++ b/lua/acf/shared/gearboxes/doublediff.lua
@@ -25,6 +25,7 @@ ACF_DefineGearbox( "DoubleDiff-T-S", {
 	maxtq = GearDDST,
 	gears = 1,
 	doublediff = true,
+	doubleclutch = true,
 	geartable = {
 		[ 0 ] = 0,
 		[ 1 ] = 1,
@@ -42,6 +43,7 @@ ACF_DefineGearbox( "DoubleDiff-T-M", {
 	maxtq = GearDDMT,
 	gears = 1,
 	doublediff = true,
+	doubleclutch = true,
 	geartable = {
 		[ 0 ] = 0,
 		[ 1 ] = 1,
@@ -59,6 +61,7 @@ ACF_DefineGearbox( "DoubleDiff-T-L", {
 	maxtq = GearDDLT,
 	gears = 1,
 	doublediff = true,
+	doubleclutch = true,
 	geartable = {
 		[ 0 ] = 0,
 		[ 1 ] = 1,
diff --git a/lua/autorun/acf_globals.lua b/lua/autorun/acf_globals.lua
index c97b6ab6f..c4f23bc62 100644
--- a/lua/autorun/acf_globals.lua
+++ b/lua/autorun/acf_globals.lua
@@ -2,7 +2,7 @@ ACF = {}
 ACF.AmmoTypes = {}
 ACF.MenuFunc = {}
 ACF.AmmoBlacklist = {}
-ACF.Version = 535 -- REMEMBER TO CHANGE THIS FOR GODS SAKE, OMFG!!!!!!! -wrex   Update the changelog too! -Ferv
+ACF.Version = 536 -- REMEMBER TO CHANGE THIS FOR GODS SAKE, OMFG!!!!!!! -wrex   Update the changelog too! -Ferv
 ACF.CurrentVersion = 0 -- just defining a variable, do not change
 
 ACF.Year = 1945
diff --git a/sound/acf_extra/vehiclefx/engines/v8/gwv1380.tmp b/sound/acf_extra/vehiclefx/engines/v8/gwv1380.tmp
deleted file mode 100644
index ff716f83e..000000000
Binary files a/sound/acf_extra/vehiclefx/engines/v8/gwv1380.tmp and /dev/null differ
diff --git a/sound/acf_extra/vehiclefx/engines/v8/puttheseinv8folder.rar b/sound/acf_extra/vehiclefx/engines/v8/puttheseinv8folder.rar
deleted file mode 100644
index 768f17a35..000000000
Binary files a/sound/acf_extra/vehiclefx/engines/v8/puttheseinv8folder.rar and /dev/null differ