LST is here.

[crashradius]

Hi folks
just received the LST for my 63 c1200 4x4, I will post as soon as I can get my scanner to function. Till then I have a few questions.
Front axle is a fa15 / d44 small closed knuckle 4.09 ratio
rear axle is a ra10 sgl r 4.10 ratio.
Transfer case is a t141 /np202
transmission is a t16/t98
s3 steering gear.
Questions as follows. Why are the front and rear ratios different?are there lockers available for the rear? Does any d44 locker work up front? Are different gearsets available for the rear
and what is the correct length for the pitman arm, it seems short and I run out of steering way before the wheels are lock to lock.
This truck has an enormous turning radius,way more than any vehicle ive owned. Thanks crash

 

[MarkO]

In regards to the turning radius, check your steering stops. Someone May have turned them out to keep something from rubbing. At the same time, you are talking about an almost 50-year old 3/4-ton 4x4. It isn't going to turn as tight as something even 20-something years old. My '65 4x4 3/4-ton t-all doesn't exactly turn inside of much of anything.

Your turning radius is a function of the front axle cut angle and the length of the wheelbase. A short box will turn inside of a t-ette long box with room to spare.

The only way to increase the front axle cut angle is to update to a more modern front axle. You May want to anyway because the big 6-lug brake drums are made of unobtainium and are worth their weight in gold. You can swap the axles for less than the cost of a new drum.

 

[crashradius]

in regards to the turning radius, check your steering stops. Someone May have turned them out to keep something from rubbing. At the same time, you are talking about an almost 50-year old 3/4-ton 4x4. It isn't going to turn as tight as something even 20-something years old. My '65 4x4 3/4-ton t-all doesn't exactly turn inside of much of anything.

Your turning radius is a function of the front axle cut angle and the length of the wheelbase. A short box will turn inside of a t-ette long box with room to spare.

The only way to increase the front axle cut angle is to update to a more modern front axle. You May want to anyway because the big 6-lug brake drums are made of unobtainium and are worth their weight in gold. You can swap the axles for less than the cost of a new drum.

The reason I ask about the correct length of the pitman arm is that I run out of steering turns way before the stops are even close to the stop bolts, the axle seems to have enough room to move without interference just not enough throw on the pitman arm. Thanks crash

 

[crashradius]

Hi folks
finally found working scanner here is the LST for my 1963 c1200 4x4