diff --git a/addon/utils/collection-action.js b/addon/utils/collection-action.js
index 6d15de64..ffffd63d 100644
--- a/addon/utils/collection-action.js
+++ b/addon/utils/collection-action.js
@@ -8,13 +8,12 @@ export default function instanceOp(options) {
     let urlType = options.urlType || requestType;
     let adapter = this.store.adapterFor(modelName);
     let fullUrl = buildOperationUrl(this, options.path, urlType, false);
-    let serializedPayload = (options.before && options.before.call(this, payload)) || payload;
-    return adapter.ajax(fullUrl, requestType, merge(options.ajaxOptions || {}, { data: serializedPayload }))
-    .then(response => {
+    let data = (options.before && options.before.call(this, payload)) || payload;
+    return adapter.ajax(fullUrl, requestType, merge(options.ajaxOptions || {}, { data })).then(response => {
       if (options.after && this.isDestroyed) {
         return options.after.call(this, options, response);
       }
-      
+
       return response;
     });
   };
diff --git a/addon/utils/member-action.js b/addon/utils/member-action.js
index 285f8a65..a1cca095 100644
--- a/addon/utils/member-action.js
+++ b/addon/utils/member-action.js
@@ -8,13 +8,12 @@ export default function instanceOp(options) {
     let urlType = options.urlType || requestType;
     let adapter = this.store.adapterFor(modelName);
     let fullUrl = buildOperationUrl(this, options.path, urlType);
-    let serializedPayload = (options.before && options.before.call(this, payload)) || payload;
-    return adapter.ajax(fullUrl, requestType, merge(options.ajaxOptions || {}, { data: serializedPayload }))
-    .then(response => {
+    let data = (options.before && options.before.call(this, payload)) || payload;
+    return adapter.ajax(fullUrl, requestType, merge(options.ajaxOptions || {}, { data })).then(response => {
       if (options.after && !this.isDestroyed) {
         return options.after.call(this, options, response);
       }
-      
+
       return response;
     });
   };
diff --git a/addon/utils/push-response.js b/addon/utils/push-response.js
deleted file mode 100644
index e69de29b..00000000