Looking for specs on Cat 966B

966A, 33A series, D333T, 140hp, 94" WB, 33A1454-up 122" WB, 2.5 yd. 1960-63
966B, 75A series, D333T 150hp, 3.0 yd. 1963-67
966C, 76J, 78G, 42J, 30K, 25U, series, D333T, 170hp, 4 speed, 4wd, transmission neutralize brake petal, plus many changes through the series 1967-1980.
966D, 99Y, 35S, 94X, 1981-87
966E, 35S, 1987-91
966F, 4YG, 1990-up
and more

There was little difference between the 966B and 966C, the B had the 4.5" bore engine and the C had the 4.75" bore D333C/3306.

966B (75A) 1963-68 uses the D333aT (4-1/2" bore)
966B (76J) 1968-80 uses the D333cT (4-3/4" bore) until 76J7946 then uses the 3306T with sleeve metering.
76J1063-up has flow amplified steering.
Both are articulated steering.

I think the B model had a two speed ps trans next to the seat and forward reverse shifter on the steering columb(sp?). The C model had three speed ps and forward reverse all on the columb.
Chuck C

[quote="ChuckC"]I think the B model had a two speed ps trans next to the seat and forward reverse shifter on the steering columb(sp?). The C model had three speed ps and forward reverse all on the columb.
Chuck C[/quote]

Here you go Chuck,

[attachment=35285]Cat 966B shifting_1.jpg[/attachment]

Kelly

Hi Team,
I believe as well as the Trans gear lever change and other mods mentioned above, the C had a Hydraulic Oil Cooler fitted.
It was a mod I was going to mention to Cat of Australia Engineers when I came home from Nam as we used to often get the hydraulics boiling when working hard in the USA Engineers quarry loading over large ( for a 966) USA Engineers dump trucks with blast material out of the face or loading our Mark 5 International 5 yard tip/dump trucks with 3" minus from the crusher stock pile.
I was pleased to see that our first New Equipment stock C had a cooler fitted.
Often saw a blue tinge on the tilt rods and the rain, at times, would seem to sizzle on the cylinders and rods.
Cheers,
Eddie B.

The serial is 75a 3569. What year is this one?

1966 model