Baywindow Gearbox Codes

Type 2 gearbox codes and Ratios…

Well… thats the plan! – Anyone have the information? -I’m trying!

There doesn’t seem to be a conclusive list anywhere… so I’ve started compiling this list… 

Research so far is confusing…. some indication can be gained from counting the strengthening ribs that go across the Gearbox box above the CV joints..

3 rib = Std 1600cc “002” ‘1967 – 6/73 ish (there are 2 types – The Early one that isn’t supported over the bell housing and the later type that is (’72 on)

5 rib = rare-ish 6/73-1975 ish 3.78 ratio 1st gear Stronger than the 3.80. These are not as strong as the 6-ribs, but they are stronger than the 3-rib transmissions. 

6 rib = 2L “091” 1976-80 ish 

any comments? 

THIS PAGE IS UNDER CONSTRUCTION AND I NEED YOUR HELP!!

CodesModelNotes
 CA1600cc / 1700cc4 Speed Manual – from case number 0123 698 (early bay)
CB1600 / 1700cc4 Speed Manual – Mountain Ratio
CC 1600 / 1700cc4 Speed Manual with LSD
CD 1600 / 1700cc4 Speed Manual -Mountain with LSD
CE1600 / 1700cc4 Speed Manual -from August 1971
CG16004 Speed Manual
CK1700?4 Speed Manual
CM18004 Speed Manual
CN 18004 Speed Manual – Aug 73 onwards
CP20004 Speed Manual
CT20004 Speed Manual
CU16004 Speed manual
CV 16004 Speed manual
DE16004 Speed Manual
NAAuto3 speed – from September 1972
NBAuto3 Speed
NCAuto3 Speed
NDAuto3 Speed
NEAuto3 Speed
NFAuto3 Speed
NGAuto3 Speed
NJAuto3 Speed

Gear Ratios… the info so far…

1st gear 3.80

2nd Gear 2.06

3rd gear 1.26

4th gear 0.82:1 to chassis 213 2068 547 and 0.89:1 from chassis 213 2068 548 (Final drive of 5.375:1 (5.857:1 for Mountain))

or 1600 4th gear 0.81:1 with Final drive 8.43:1 

17/18/2000 4th gear 0.89:1 with Final Drive 7.34:1

Reverse 3.80 upto chassis 2112276560 then 3.61

Final drive 5.375 through chassis 213 2300 001 then 4.857 from chassis 214 2000 001


“A type 4 engine (17,18,2000) will go onto a 1600 box no probs. gearboxes for type 4 engines have a slightly longer input shaft so a 1600 won’t fit onto that.”

there are people who’ll say grind the shaft down, but i fell that’s a bit of a waste and it’s no big deal to remove bellhousing and change the shaft..

shaft goes further into Type 4 lump. but bell housings (1600s as well!) were seemingly all a bit longer after 75…………. with a different (longer throw) starter motor too!

Please note that this information is provided as a GUIDE ONLY we cannot be held responsible for any errors.

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