Reverse Mainshaft Gear Kit (2004-10)


Reverse Mainshaft Gear Kit for 2004-10 Mustang TR-3650 (Updated)

Product Description


New Reverse Mainshaft Gear Kit for 2004-2010 Ford Mustang 4.6L TR-3650 5 Speed Transmission.  Includes:

-Reverse Mainshaft Gear
-Reverse Synchronizer Slider & Hub
-Reverse Synchronizer Struts & Springs
-Reverse Engagement Clutching Cone

**It used to be that the only way you could get the Reverse Slider was to buy this Gear Kit.  But, now we offer the Slider New in an Aftermarket Option, Part#: TR3650-15B. Feel free to research this part number on the "Search Field".

This Reverse Gear Kit is considered the "Updated" Design found in all of the 2004-2010 Ford Mustang 4.6L TR-3650. It is also the only Reverse Gear Kit available for Purchase "NEW" from Tremec Transmission Corporation (O.E.=Original Equipment). The earlier design (2/01-2003) was replaced with this Updated Reverse Gear Kit as long as the Later Design (2004-10) Stepped Design Cluster Gear (Part# TCCF1848), Updated 1st Mainshaft Gear 39 Tooth (Part# TCEE1846) , and Reverse Idler Gear (Part# TCEN1850) were purchased and installed.


This gear is shipped with Freight already included in Price of Component for anyone in the Continental U.S.  Freight Charge Included is for USPS Priority Mail. Usually a 2-3 Day Service once shipped.  Average handling time to ship this product out is 2 Business Days from date of purchase.

Expedited Freight is available. But, at an additional charge. Anyone wanting Expedited Freight need to consider & do the following:

-Expedited Freight is available on "Stocked Items" only.  Please note that just because the website says the product is available, it doesn't mean 100% it is.  This is due to the amount of gearbox builds we perform with multiple builders constantly pulling components from shelf and the gearbox components for that build not necessarily being billed out in a timely manner.  It is always a Great Idea to email to check Availability before purchase.

-Expedited Freight is performed thru Fedex Express Air, USPS Express Air, and UPS Air Services.  USPS Express & UPS Air Services are picked up from our warehouse Monday thru Friday at 4:00pm EST. Fedex Express Air is picked up at 4:15pm EST.  Regardless of what Service end user picks, it is important to get either an email in to our sales department requesting freight quote before 2:00pm EST for shipment the same day. Please email for Availability and Expedited Freight Charges.

-Both Expedited Freight Charges & International Freight Charges are Quoted and Billed out separately from the charge of Product Purchased on Website. Astro Performance Warehouse will send a "Request for Payment" thru Paypal to Email Address that the Quote & Availability Question is sent from. CUSTOMER MUST PAY ADDITIONAL FREIGHT CHARGE BEFORE PRODUCT IS SHIPPED!


-15% restocking fee
-Customer pays Return Freight Charge of Product back to our Warehouse
-Customer responsible for original "Ship To Charges" for parts ordered wrong
-When Part is Returned, Part is Inspected and Re-Boxed/Labeled
-After Part is Deemed Acceptable for Return, Credit is Given via Paypal
-Credit of Part will have "Ship To" Freight removed as well as 15% Restocking Fee


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