diff --git a/L1Trigger/TrackFindingTracklet/interface/L1TStub.h b/L1Trigger/TrackFindingTracklet/interface/L1TStub.h
index dcba3c7726885..2a5f0e01732ee 100644
--- a/L1Trigger/TrackFindingTracklet/interface/L1TStub.h
+++ b/L1Trigger/TrackFindingTracklet/interface/L1TStub.h
@@ -22,6 +22,8 @@ namespace trklet {
             int isPSmodule,
             int isFlipped,
             bool tiltedBarrel,
+            unsigned int tiltedRingId,
+            unsigned int endcapRingId,
             unsigned int detId,
             double x,
             double y,
@@ -96,7 +98,11 @@ namespace trklet {
 
     bool isTilted() const { return tiltedBarrel_; }  // Tilted barrel
 
-    unsigned int detId() const { return detId_; }  // Lower sensor in module
+    // Tilted module ring no. (Increasing 1 to 12 as |z| increases).
+    unsigned int tiltedRingId() const { return tiltedRingId_; }
+    // Endcap disk module ring number (1-15 as r increases).
+    unsigned int endcapRingId() const { return endcapRingId_; }
+    unsigned int detId() const { return detId_; }  // Of lower sensor in module
 
     bool tpmatch(int tp) const;
     bool tpmatch2(int tp) const;
@@ -128,10 +134,11 @@ namespace trklet {
     double pt_;
     double bend_;
     unsigned int allstubindex_;
-
     unsigned int isPSmodule_;
     unsigned int isFlipped_;
     bool tiltedBarrel_;
+    unsigned int tiltedRingId_;
+    unsigned int endcapRingId_;
     unsigned int detId_;
   };
 };  // namespace trklet
diff --git a/L1Trigger/TrackFindingTracklet/interface/SLHCEvent.h b/L1Trigger/TrackFindingTracklet/interface/SLHCEvent.h
index c2c73d086a4c5..444767154ffc6 100644
--- a/L1Trigger/TrackFindingTracklet/interface/SLHCEvent.h
+++ b/L1Trigger/TrackFindingTracklet/interface/SLHCEvent.h
@@ -38,6 +38,8 @@ namespace trklet {
                  int isPSmodule,
                  int isFlipped,
                  bool tiltedBarrel,
+                 unsigned int tiltedRingId,
+                 unsigned int endcapRingId,
                  unsigned int detId,
                  double x,
                  double y,
diff --git a/L1Trigger/TrackFindingTracklet/plugins/L1FPGATrackProducer.cc b/L1Trigger/TrackFindingTracklet/plugins/L1FPGATrackProducer.cc
index f1ac448aa7311..51b179e96498f 100644
--- a/L1Trigger/TrackFindingTracklet/plugins/L1FPGATrackProducer.cc
+++ b/L1Trigger/TrackFindingTracklet/plugins/L1FPGATrackProducer.cc
@@ -583,6 +583,18 @@ void L1FPGATrackProducer::produce(edm::Event& iEvent, const edm::EventSetup& iSe
         enum TypeBarrel { nonBarrel = 0, tiltedMinus = 1, tiltedPlus = 2, flat = 3 };
         const TypeBarrel type = static_cast<TypeBarrel>(tTopo->tobSide(innerDetId));
         bool tiltedBarrel = barrel && (type == tiltedMinus || type == tiltedPlus);
+        unsigned int tiltedRingId = 0;
+        // Tilted module ring no. (Increasing 1 to 12 as |z| increases).
+        if (tiltedBarrel) {
+          tiltedRingId = tTopo->tobRod(innerDetId);
+          if (type == tiltedMinus) {
+            unsigned int layp1 = 1 + layerdisk;  // Setup counts from 1
+            unsigned int nTilted = setup_->numTiltedLayerRing(layp1);
+            tiltedRingId = 1 + nTilted - tiltedRingId;
+          }
+        }
+        // Endcap module ring number (1-15) in endcap disks.
+        unsigned int endcapRingId = barrel ? 0 : tTopo->tidRing(innerDetId);
 
         const unsigned int intDetId = innerDetId.rawId();
 
@@ -593,6 +605,8 @@ void L1FPGATrackProducer::produce(edm::Event& iEvent, const edm::EventSetup& iSe
                    setup_->psModule(dtcId),
                    isFlipped,
                    tiltedBarrel,
+                   tiltedRingId,
+                   endcapRingId,
                    intDetId,
                    ttPos.x(),
                    ttPos.y(),
diff --git a/L1Trigger/TrackFindingTracklet/src/L1TStub.cc b/L1Trigger/TrackFindingTracklet/src/L1TStub.cc
index ace3bc770fd8e..d2078be8d95cd 100644
--- a/L1Trigger/TrackFindingTracklet/src/L1TStub.cc
+++ b/L1Trigger/TrackFindingTracklet/src/L1TStub.cc
@@ -12,6 +12,8 @@ L1TStub::L1TStub(std::string DTClink,
                  int isPSmodule,
                  int isFlipped,
                  bool tiltedBarrel,
+                 unsigned int tiltedRingId,
+                 unsigned int endcapRingId,
                  unsigned int detId,
                  double x,
                  double y,
@@ -45,6 +47,8 @@ L1TStub::L1TStub(std::string DTClink,
   isPSmodule_ = isPSmodule;
   isFlipped_ = isFlipped;
   tiltedBarrel_ = tiltedBarrel;
+  tiltedRingId_ = tiltedRingId;
+  endcapRingId_ = endcapRingId;
   detId_ = detId;
 
   allstubindex_ = 999;
diff --git a/L1Trigger/TrackFindingTracklet/src/SLHCEvent.cc b/L1Trigger/TrackFindingTracklet/src/SLHCEvent.cc
index 84b8a950ab4bc..1c0e0f1e9427b 100644
--- a/L1Trigger/TrackFindingTracklet/src/SLHCEvent.cc
+++ b/L1Trigger/TrackFindingTracklet/src/SLHCEvent.cc
@@ -17,6 +17,8 @@ bool SLHCEvent::addStub(string DTClink,
                         int isPSmodule,
                         int isFlipped,
                         bool tiltedBarrel,
+                        unsigned int tiltedRingId,
+                        unsigned int endcapRingId,
                         unsigned int detId,
                         double x,
                         double y,
@@ -24,8 +26,22 @@ bool SLHCEvent::addStub(string DTClink,
                         double bend,
                         double strip,
                         vector<int> tps) {
-  L1TStub stub(
-      DTClink, region, layerdisk, stubword, isPSmodule, isFlipped, tiltedBarrel, detId, x, y, z, bend, strip, tps);
+  L1TStub stub(DTClink,
+               region,
+               layerdisk,
+               stubword,
+               isPSmodule,
+               isFlipped,
+               tiltedBarrel,
+               tiltedRingId,
+               endcapRingId,
+               detId,
+               x,
+               y,
+               z,
+               bend,
+               strip,
+               tps);
 
   stubs_.push_back(stub);
   return true;
@@ -97,6 +113,8 @@ SLHCEvent::SLHCEvent(istream& in) {
 
     // TO FIX: READ THESE FROM INPUT FILE
     bool tiltedBarrel = false;
+    unsigned int tiltedRingId = 999999;
+    unsigned int endcapRingId = 999999;
     unsigned int detId = 999999;  // Lower sensor in module
 
     for (unsigned int itps = 0; itps < ntps; itps++) {
@@ -105,8 +123,22 @@ SLHCEvent::SLHCEvent(istream& in) {
       tps.push_back(tp);
     }
 
-    L1TStub stub(
-        DTClink, region, layerdisk, stubword, isPSmodule, isFlipped, tiltedBarrel, detId, x, y, z, bend, strip, tps);
+    L1TStub stub(DTClink,
+                 region,
+                 layerdisk,
+                 stubword,
+                 isPSmodule,
+                 isFlipped,
+                 tiltedBarrel,
+                 tiltedRingId,
+                 endcapRingId,
+                 detId,
+                 x,
+                 y,
+                 z,
+                 bend,
+                 strip,
+                 tps);
 
     in >> tmp;