Wanted: dozer track

[Ken Smith]

Max,
The 4T tracks are not unique, the tracks from the 3T will fit and the tracks from the later model D7C and D7D both with 17A serial # will fit, although the 17A tracks might have a couple more links, which are easy enough to remove. The 17A was built up to about 1961 and are still being used around here as farm tractors and bull dozers.

The proper Caterpillar 3T was built from 1944 to 1955 and the military/lend lease 4T was built from 1945 until 1948.

According to my 1988 Construction Equipment Appraisers hand book 4T 4823 was one of 3831 4Ts assembled in 1946.

Ken

[Max Hedges]

Ken
we have found track from a D7 E , the seller says they also fit a 17A
from his picture there is 34 links in a track with 3 links that are sitting loose would these tracks be any good to us and they also have 20" plates
Max

[Ken Smith]

Max,
I am almost 100% sure D7E tracks are longer in the pitch and won't engage the sprocket correctly I think they may be wider as well . A free phone call to Tillys in Toowoomba will confirm.I would suggest measuring your link pitch but they are probably worn out to D7E length now anyway.
Cheers Ken

[Max Hedges]

Ken
from what they have told us you are correct and we may have to change the drive sprocket which they have for us and then the dozer should be good to go
thanks for your help
Max

[Ken Smith]

Max ,
I think the D7E track is to wide for your rollers, and the sprocket is totally different and will not fit your final drive. If you are talking about rerimming your sprocket with the D7E rim I think you will find it is too big in diameter and will foul the track frame and/or the back roller.
Ken

[Max Hedges]

Ken
I will look into all that, I think our track is 4"inside and that
d7e is 4 1/4" on the inside
Max

[Max Hedges]

Max at play in Dalton sandpit