SHOCK ABSORBER TYPE 502S (Singleplate) & 502M (Multiplate)
3 1/2″ diameter.
Type 502S is suitable for any vehicle up to 20 cwt.
Type 502M is suitable for any vehicle up to 40 cwt and on lighter vehicles where particularly strong absorption is needed, such as racing and hill climbs.

The application to MG of the above series type was:
Type 502S – MG ‘M’ Midget (1929-1932). 2 front, 2 rear.
Type 502M – MG ·C· Montlhery racing Midget. 2 front, 2 rear. Shock absorber tension was adjustable from a control knob in the cockpit on some examples.

SHOCK ABSORBER TYPE 506S (Singleplate) & 506 M (Multiplate)
4 1/2″ diameter.
Type 506S is suitable for any vehicle up to 30 cwt.
Type 506M is suitable for any vehicle up to 40 cwt and on lighter vehicles where particularly strong absorbtion is needed, such as racing and hill climbs.

The application to MG of the above series type was:
Type 506S – MG D, J1, J2, J3, F1, F2, F3, L1, L2 – 2 front, 2 rear. PA (up to chassis 2142).
2 front. Luvax hydraulic rear.
Type 506M – MG J4 (2 front, 2 rear); Q racing midget (2 front only, Luvax hydraulic rear);
K3 racing Magnette (2 front, 4 rear); MG NA/NB 2 front only (Chassis Nos. NA0251-NA0796), Luvax hydraulic rear; MG K1, K2, KN (2 front, 2 rear).

The shock absorber types described above were of the early pattern ( 1929-1935) where brass or steel cups were rivetted to the centre arms and the wood friction disc sat inside the cup giving 2 cups and 2 friction discs per single plate shock absorber (see illustration above); and 4 cups and 4 discs per multiplate shock absorber. This early type were most easily identified by the rounded edges of the arms; and the Silentbloc bushed ends were rivetted to the arms.

The later pattern type 506 shock absorber (post 1935) does not have rounded edge arms or rivetted bushed ends. The brass cups are not rivetted to the inside arms but are set between two wooden friction discs located by a centre hub bush. There are 2 brass cups per single plate unit and 4 friction discs of half the thickness used in the early types (described earlier.). The Duplex later type had 4 brass cups and 8 friction discs.

The application to MG of t he late series type was:

Type 506S-PA (from Chassis PA 2143), PB models, and very early 1936 TA models (exact Chassis Numbers unknown).
Type 506M-NA & NB (from Chassis NA 0797) (front only: Luvax hydraulic rears.)

(Many owners prefer the rounded lines of the early pattern and they can be fitted to models originally using the later style, without any ill effects.).

Whilst we do not list the breakdown of the later pattern type 506, or the 3 1/2″ type 502 series, both complete shock absorbers and all individual parts are readily available.

PLEASE STATE TYPE REQUIRED WHEN ORDERING.