Guys

Can anyone tell me what was the original tyre size for a Series 3 vehicle and what tread patern was used on a 1980 model?

Mark

88 models - 6.00, 6.50, 7.00, 7.50 x 16 crossply, tread not specified

109 models - 7.50x16 or 9.00 x 16 crossply, tread not specified, or 7.50x16 Michelin XY

From Owner's manual, Landrover Series 3 P/N 607324A, dated 1978 and supplied with a 1981 109.

From memory the tyres usually fitted would have been, for the 109, 7.50x16 with RTM tread pattern crossplys. By 1980 many 88s would have been specified with the same, but the usual would probably have been 7.00x16 RTM crossply. As wheels and tyres were supplied from local sources, the tyres would not have been the same as the home market models, but it is likely that fully imported Station Wagons would have had home market tyres.

The 'Game' which I think was about that date, had 15" wheels with wider tyres. It is also possible that some may have been specified with radials, almost certainly 7.50x16 for both 88 and 109, and probably Michelin.

John

__________________
JDNSW
1986 110 County 3.9 diesel
1970 2a 109 2.25 petrol

G'day Inmate63

If your Series 3 is Military, it would have been fitted with 7.50 x 16 6 ply Bar Tread non directional tyres(conventional cross ply), and if it was late in service it may have been fitted with 7.50 x 16 Steel Trek radial tyres, as used on the coil sprung Perentie vehicles.

cheers

__________________
68 2a GS 6028D 172-484
Aust No5 trailer 2wheel 1/2 ton Ch 1974=173-489
REMLR No 003

Uncle Ho

Was there any difference in the diff ratios for the different tyre sizes?

Mark

G'day All, No all the Series Land Rovers run a standard 4.7 diff ratio cheers Dennis

All same ratios, and all army LWB models in australia came with 750x16 tyres.

__________________
1981, Series 3 FFR. 33-727 - Grover
1961, Series 2 Ambulance. 108-098 - Eden

Registry of Ex Military Land Rovers Mem. 129
Defence Transport Heritage Tasmania Mem. 12

You know, strictly speaking, throttling the staff is my job

In my time at Leyland, Series III 88" had 6.00 x 16 cross ply, usually military bar tread, and 109" had 7.50 x 16 cross ply, mbt's or dual purpose tyres, mostly Dunlop or Olympic. Forget what the dual purpose ones were called. Some 88" were retro-fitted with 7.50's before sale at dealer/customer request. For Qld. we preferred Olympic as state and local govt. vehicles were supposed to be delivered on Qld. made tyres and Olympics were the only brand to have a plant in Qld, now closed. Other customer requests were usually a preference for a particular brand, or for Goodyear Custom Hi-milers for beach work, or, rarely, Michelin Sahara. The Michelins were luxury priced.

__________________
URSUSMAJOR

A wealth of information, many thanks to all

G'day Inmate63

All Aust Military Series 2/2a Landrovers both LWB and SWB and 1/2ton trailers were fitted with Rover rim part number 272309 5.5inch with a 1 13/16 inch offset from centre, the Ser 3's were fitted with the same rims but with a new part number AYG-3038, these rims were made by ROH in Aust. there is a later rim part number AYG-8108 which was/is a rim size of 6.00 x 16 inch to take the radial tyres.

The other dual purpose type tyre tread that Brian Hjelm mentioned would probably have been Dunlop Road Track Major, or Olympic Trojan, both of these tyres were conventional cross ply types, the Road Track Major is still available I believe, in both 6ply and 8 ply types, these vehicles were designed and built before Radial tyres were invented and came into common use, so wheel alignment & tyre pressures in all workshop manuals are for Conventional/Crossply types

Hope that is of some help.


cheers

__________________
68 2a GS 6028D 172-484
Aust No5 trailer 2wheel 1/2 ton Ch 1974=173-489
REMLR No 003