Determining original gearbox serial number

[Colin Lindsay]

I've made a slight foo-pas and stored three gearboxes together for the last two years, and now can't remember which came from my 1964 1200 convertible. As the car was fully original when purchased I'd like to restore it that way with all the original units.

BMIHT records don't cover gearboxes or differentials, so I can't ask them.

Any ideas as to how to work out which gearbox is the right one?

 

 

[Casper]

I'm sure you know that it will have a GA serial number, but more than that, I don't know

C.

[Pete Lewis]

copied from  our friends in CT 

Herald

Model               Commission      Body    Engine  Gearbox Diff
Herald 948 Saloon   G.....          GC/GM   G       G       G
Herald 948TC Saloon GY....          GC(GM?) Y       G       Y
Herald 948 Coupe    Y.....          Y       Y       G       Y
Herald 948 Con.     Y.....#CV       RT      Y       G       Y
Herald S saloon     G.....#SP       GC      G       G       G
Herald 1200 Sal     GA....#DL       ....GAT GA      GA      GA
1200 Sal(Export)    GB....#DL       ....GAT GB      GA      GA
Herald1200 Cpe      GA....#CP       ....YAT GA      GA      GA
1200 Cpe(export)    GB....#CP       ....YAT GB      GA      GA
Herald 1200 Con     GA....#CV       ....RAT GA      GA      GA
1200 Con export     GA/B/D..#CV     ....RAT GB/D    GA      GA
Herald 1200 Est.    GA....#SC       ....EAT GA      GA      GA
1200 Est.export
Courier van         GA....#V        ....GVB GA      GA      GA
Herald 12/50        GD....#RS       ....GDT GD      GA      GA
     "                              ...GATR
AMI 12/50 Saloon*   GB.....DL       X...... GD    
AMI 12/50 Coupe*    GB.....CP       C...... GD
Herald 13/60sal     GE....#DL       ....GET GE/GK   GA      GE
Herald 13/60con     GE....#CV       ....RET GE/GK   GA      GE
Herald 13.60est     GE....#SC       ....EET GE/GK   GA      GE

#=L for LHS, nothing for RHS
* The AMI 12/50 was built by Australian Motor Industries from parts shipped from Coventry.
There were a great many differences from UK spec. such as a Vitesse bonnet and no sunshine roof.
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Pete

[Colin Lindsay]

This is where the plot definitely thickens... the two I'm working on at present in the garage are a GB and a CB prefix.... hence my confusion....

 

I'll post photos to confirm that's the number rather than face prolonged posts about being short-sighted / senile / hallucinating / should have gone to Specsavers etc...

 

[Pete Lewis]

i dont see a CD  maybe the G was missing from the stamp set  ???

 

again data from club triumph

• A - General commission number prefix for Speke built cars.
• ACG -TR7
• ACH -TR7
• ACL -TR7
• ACN -TR7
• ACT -TR7
• ACW -TR7
• ADF -Toledo
• ADG -Toledo
• ADH -Toledo
• ADM -Toledo
• ADP -Toledo
• ADS -Toledo
• ADT -Toledo
• ADV -Toledo
• ADW -Toledo
• BCEL -2000/2500/2.5PI
• BCER -2000/2500/2.5PI
• BCSL -2000/2500/2.5PI
• BCSR -2000/2500/2.5PI
• BE -Triumph 10
• BT -TR4,4A
• BTC -TR4,4A
• CT -TR4,4A,TR7
• CTC -TR4,4A
• CC -TR5-6
• CD -TR5-6
• CF -TR5-6
• CG -TR7
• CH -TR7
• CK -TR7
• CL -TR7
• CP -TR5-6
• CR -TR5-6,2.5PI
• CT -TR7
• CV -TR7, general commission no suffix for convertible
• CW -TR7
• DG -Toledo,Dolomite
• DH -Toledo,Dolomite
• DL - General commission no suffix for saloon (De Luxe)
• DM -Toledo,1500 rwd, Dolomite
• DN -Toledo
• DP -Dolomite
• DS -Toledo
• EAT -Herald
• EET -Herald
• ESS - Engine number suffix for replacement engine supplied as a spare part
• FC -Spitfire
• FD -Spitfire,Vitesse
• FDU -Spitfire
• FG -Spitfire
• FH -Spitfire
• FK -Spitfire
• FL -Spitfire
• FM -Spitfire
• FRE - Engine number suffix for 'Factory reconditioned Engine'
• FRI -Spitfire
• FTI -Spitfire
• G -Herald
• GA -Herald
• GATR -Herald
• GB -Herald
• GD -Herald
• GE -Herald
• GDT -Herald
• GET -Herald
• GY -Herald
• HB -Vitesse
• HBC -Vitesse
• HBD -Vitesse
• HC -Vitesse
• HCC -Vitesse
• HE - General engine no suffix for high compression
• KC -GT6
• KD -GT6
• KE -GT6
• KF -GT6
• KG -GT6
• L - General commission number suffix for left hand drive
• LD -Triumph 10
• LDLB -Stag
• LE -Stag, general engine no suffix for low compression
• LF -Stag
• LSC -Triumph 10
• MB -2000/2500/2.5PI
• MC -2000/2500/2.5PI
• MD -2000/2500/2.5PI
• ME -2000/2500/2.5PI
• MEA -2000/2500/2.5PI
• MEC -2000/2500/2.5PI
• MED -2000/2500/2.5PI
• MG -2000/2500/2.5PI
• MGA -2000/2500/2.5PI
• MK -2000/2500/2.5PI
• MM -2000/2500/2.5PI
• MP -2000/2500/2.5PI
• O - General commission number suffix for overdrive
• RA -Vitesse,Herald
• RD -Front wheel drive
• RF -Front wheel drive
• RS - General commission no suffix for sunshine roof
• SC - General commission no suffix for estate (station waggon)
• TBE -Triumph 10
• TCF -TR2-3A
• TCG -TR7
• TCN -TR7
• TCT -TR7
• TCV -TR7
• TCW -TR7
• TDB -Renown
• TDC -Renown
• TS -TR2-3A
• TSF -TR2-3A
• TT -Mayflower
• VA -Dolomite
• WB -Front wheel drive,Dolomite
• WD -Dolomite
• WE -Dolomite
• WF -Dolomite
• WG -Dolomite
• WH -Dolomite
• WK -Dolomite
• WL -Dolomite
• WM -Dolomite
• Y -Herald
• YA -Herald
• YB -Front wheel drive
• YB -Front wheel drive
• YC -Front wheel drive,Dolomite
• YD -Front wheel drive,Dolomite