1952 – 1958 GB Gearbox
Useful article on GB mainshaft lengths here
Part Number | Description | Per | Models | Years |
PACK-ADV-005 | GB Gearbox overhaul pack, please specify bike | |||
3600-GBXXXXXXXX | GB gearboxes for AMC, Square Four , Singles and Twins | |||
CS30 | Complete set of case screws for GB gearbox, except HT | |||
CS30Q | Complete set of case screws for GB gearbox, not HT, stainless steel | |||
GB outer cover case  screws, zinc plated 2 x 3788-52, 2 x 3676-52, 2 x 3678-52, 2 x 3679-52 | ||||
| GB inner cover case screws 2 x 3677-52, 2 x 3678-52 | ||||
| GB47 (HT) set 1 x 3676-52, 4 x 3677-52, 1 x 3678-52, 1 x 3679-52, 1 x 3679-56 | ||||
3089-33 | Sprocket nut | 1 | ||
3091-33 | Sprocket lockwasher | 1 | ||
3095-33 | Mainshaft bearing, clutch end | 1 | ||
3106-33 | Sprocket 18 T (not originally used by Ariel) | |||
3106-39 | Sprocket 16 T (not originally used by Ariel) | |||
3106-90 | Sprocket 17 T (not originally used by Ariel) | |||
3176-33 | Mainshaft bearing, kickstart end | 1 | ||
3191-33 | Kickstart ratchet pinion, 16 T | 1 | Not SQ 4 | |
3196-33 | Kickstart ratchet pinion spring | 1 | ||
3305-31 | Kickstart arm | 1 | ||
3307-35 | Kickstart rubber | 1 | ||
3310-37 | Kickstart lever pinch bolt | 1 | ||
3310-37Q | Kickstart lever pinch bolt with nut, stainless | 1 | ||
3325-31 | Kickstart quadrant | 1 | Not SQ 4 | |
3325-37 | Kickstart quadrant | 1 | SQ 4 | |
3335-48 | Kickstart spring, 3/8” wide | 1 | ||
3341-52 | Filler plug | 1 | ||
3342-52 | Level plug | 1 | ||
3342-52Q | Level plug, stainless | 1 | ||
3508-33 | Gear lever rubber | 1 | ||
3514-33 | Gear lever pinch bolt | 1 | ||
3514-33Q | Gear lever pinch bolt, stainless | 1 | ||
S1-2 | Gear lever pinch bolt nut | 1 | ||
S1-2Q | Gear lever pinch bolt nut, stainless | 1 | ||
3600-52 | Shell | 1 | ||
3600-56 | Shell | 1 | HT | 1956-58 |
3602-52 | Gasket, gearbox, inner | 1 | GB | 1952-58 |
3602-56 | Gasket, gearbox, inner | 1 | GB 47 (HT) | 1956-58 |
3610-52 | Kickstart case | 1 | ||
3610-56 | Kickstart case | 1 | HT | 1956-58 |
3611-52 | Gasket, gearbox, outer | 1 | GB | 1952-58 |
3611-56 | Gasket, gearbox, outer | 1 | GB 47 (HT) | 1956-58 |
3620-52 | Kickstart case cover | 1 | ||
3620-56 | Kickstart case cover | 1 | HT | 1956-58 |
3623-52 | Kickstart case cover locating piece | 1 | ||
3626-52 | Kickstart ratchet pinion nut | 1 | ||
3628-52 | Mainshaft bearing circlip, kickstart end | 1 | ||
3629-52 | Mainshaft | 1 | SQ 4 | |
3629-52U | Mainshaft, used | 1 | SQ 4 | |
3631-52 | Sprocket 19T (standard for all models) | 1 | ||
3632-52 | Sprocket spacer | 1 | not SQ 4 | |
3633-52 | Sprocket spacer | 1 | ||
3634-52 | Mainshaft bearing circlip, clutch end | 1 | ||
3635-52 | Sprocket oil seal | 1 | ||
3636-52 | Sprocket oil seal carrier | 1 | ||
3637-52 | (4th) sleeve gear bush | 2 | ||
3638-52 | Sleeve gear, without bushes, 28T | 1 | Not SQ4 | |
3638-52U | Sleeve gear, used but good 28T | 1 | Not SQ4 | |
3656-00 | Pair Sleeve gear, without bushes, 30T / 16T New old stock | 1 | HT | |
3638-55U | Sleeve gear, used but good 28T | 1 | HT | |
3639-52 | Sleeve gear, without bushes, 28T | 1 | SQ4 | |
3641-52 | 1st gear mainshaft, 17T | 1 | ||
3642-52 | 2nd mainshaft gear, 22T | 1 | ||
3642-55 | 2nd mainshaft gear, 20T | 1 | HT | |
3643-52 | 3rd mainshaft gear, 25T | 1 | ||
3644-52 | 3rd gear mainshaft bush | 1 | ||
3648-52 | 1st layshaft gear, 29T | 1 | ||
3649-52 | 2nd gear layshaft, 24T | 1 | ||
3650-52 | 2nd gear layshaft bush | 1 | ||
3652-52 | 3rd gear, layshaft, 21t | 1 | ||
3653-52 | 1st gear layshaft bush | 1 | ||
3656-52U | Layshaft pinion, 18T, used | 1 | ||
3657-52 | Layshaft | 1 | ||
3658-52 | Layshaft bush, clutch end, long | 1 | ||
3659-52 | Layshaft bush, kickstart end, short | 1 | ||
3660-52 | Layshaft bush locating peg | 2 | ||
3661-52 | Layshaft blanking plug in shell (core plug) | 1 | ||
3663-52 | Speedometer drive spindle | 1 | ||
3664-52 | Speedometer spindle bush | 1 | ||
3665-52 | Speedometer drive spindle thrust washer | 1 | ||
3666-52 | Speedometer spindle bush ‘O’ ring | 1 | ||
3669-52 | Drain plug | 1 | ||
3670-52 | Drain plug fibre washer | 1 | ||
3670-55 | Fibre washer, case screw | 9 | ||
3671-52 | Kickstart case dowel in shell | 2 | ||
3676-52 | Case screw, outer 7/8″ | 2 | ||
3677-52 | Case screw, inner 1 1/8″ | 2 | ||
3678-52 | Case screw, 2 inner and 2 outer 1 3/8″ | 4 | ||
3679-52 | Case screw, outer 2 7/8″ | 2 | ||
3680-52 | Kickstart driving ratchet | 1 | ||
3681-52 | Kickstart pinion | 1 | SQ4 | |
3682-52 | Peg in shell for eyebolt adjuster | 1 | ||
3683-52 | Kickstart ratchet pinion bush | 1 | ||
3684-55 | Kickstart ratchet pinion nut lockwasher | 1 | 1955-58 | |
3686-52 | Kickstart shaft | 1 | ||
3687-52 | Level plug fibre washer | 1 | ||
3688-52 | Kickstart shaft bush, inner | 1 | ||
3689-52 | Kickstart shaft bush, outer | 1 | ||
3696-52 | Kickstart lever with arm (cranked out 1/2″ more than the original) | 1 | ||
3698-52 | Kickstart lever pinch bolt nut | 1 | ||
3699-52 | Kickstart shaft oil seal | 1 | ||
3705-52 | Selector cam | 1 | ||
3707-55 | Positive stop plunger | 1 | ||
3709-52 | Positive stop plunger spring | 1 | ||
3711-52 | Selector cam spindle bush, inner | 1 | ||
3713-52 | Gear change indicator nut | 1 | ||
3713-52Q | Gear change indicator nut, stainless | 1 | ||
3716-52 | Gear change quadrant | 1 | ||
3718-52 | Gear change shaft | 1 | ||
3720-52 | Gear change shaft bush, inner | 1 | ||
3723-52 | Gear change shaft bush, outer | 1 | ||
3728-52 | Gear change quadrant primary spring, leaf | 1 | ||
3733-52 | Selector fork, mainshaft and layshaft | 2 | 1952-54 | |
3733-55 | Selector fork and shaft, layshaft | 1 | 1955-58 | |
3734-55 | Selector fork and shaft, mainshaft | 1 | 1955-58 | |
3738-52 | Selector fork blanking plug in shell | 2 | ||
3739-52 | Selector fork spindle dowel | 2 | ||
3741-52 | Selector fork spindle split pin for dowel | 2 | ||
3743-52 | Gear change shaft oil seal | 1 | ||
3746-52 | Gear selector drum secondary spring, coil | 1 | ||
3750-52 | Gear lever | 1 | Sing/KH | |
3751-55 | Gear lever | 1 | FH/SQ 4 | |
3752-52 | Gear lever pinch bolt spring washer | 1 | ||
3756-52 | Gear change indicator | 1 | ||
3758-52 | Gear change indicator oil seal | 1 | ||
3760-52 | Gear selector drum bush, outer | 1 | ||
3763-52 | Gear change indicator spring | 1 | ||
3784-55 | Gasket, clutch push rod adjusting cap | 1 | GB | 1952-58 |
3785-52 | Push adjusting cap | 1 | ||
3788-52 | Push rod adjusting cap screw | 2 | ||
10219-54 | Filler plug fibre washer | 1 | ||
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