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Gearbox
STRAIGHT CUT GEAR SETS
Available in two ratios - Tulip, the original works rally ratios, having a large jump between 3rd and 4th gear, therefore needing a 22% overdrive to split the gap and effectively creating a 6 speed gearbox. Or - Sebring which are similar to the works sebring race ratios, having a higher first gear with a close gap between all the gears, therefore only needing the overdrive on top to create a 5 speed gearbox. Today most people prefer the Sebring ratios as they are less confusing in a heated situation. They are both manufactured solely for us with Molybdenum coated synchro cones to improve the synchromesh, giving a smoother and faster gear selection.
These must run with BJ8 steel baulk rings.
They are designed to run on a BJ8 main shaft and layshaft which can be installed into an earlier side or centre change gearbox (except BN1) with slight modifications to the centre case.
| Attachment | Size |
|---|---|
| Healey gear ratios.pdf | 24.99 KB |
UP-RATED MAIN SHAFT
An improvement on the original that uses a higher grade steel and a redesigned 3rd gear locking ring to prevent cracking and breaking. These shafts are also spline ground as original, not hobbed as our competitors, thus ensuring the gear selector hubs fit smoothly.
SELECTOR HUBS
Made to our design, these are not only a little lighter than original they also do a much better job of staying in gear. Also a direct replacement for standard.
DIPSTICK O RING CONVERSION
Stop another annoying oil leak. A steel slug with an O ring seal, to simply slip onto your dipstick in place of the felt seal.
1st / 2nd SELECTOR FORK
Made from our pattern equipment & CNC machined to the highest limits, these are a direct replacement for the worn out standard item.
3rd / 4th SELECTOR FORKS
Made from our pattern equipment with the best material, increased in thickness where necessary these are much less likely to crack and brake. Also a direct replacement for std.
BRASS BAULK RINGS
At last now available after exhaustive testing we are satisfied these will cure your synchro problems.
REPAIRED LAYGEARS
We carry a large selection of repaired laygears in stock, even for straight cut gear sets. These have a new first gear fitted. As long as damage to your laygear is only on the first gear, it should be suitable for exchange.
Please Enquire
OVERDRIVE TAIL HOUSING
A higher grade reproduction of the original to replace those with warped gasket faces or broken off tie bar mountings.