TR4 Parts Identification

["Brad Kahler" <Brad.Kahler@141.com>]

Listers,

I'm having trouble identifying what year or model the rear end and the 
tranny are from in my TR4.

The rear end appears to have the number BT13 with possibly an x or a 
+ at the end.

The transmission is CC822265.  My guess its from a TR6 but I'm not 
sure.

TIA

Brad  (Lincoln Nebraska 402-464-1502)

1964 Spitfire4           BFC25720L
1966 TR4A               CT72398L (Now a parts car)
196? TR4                CT????L (Chassis 0281CT, Engine CT405E)
1951 Dodge Truck    82217766  B-3-B-108 (Spring shackle problems)