I second the not locking the 44...
Will be cheaper to swap in a KP d60...

 

ok yes if you wheel lots go d60 but dont forget d60 swaps are usually a lot more expensive and at least he has a solid in it already if you arent crawling over houses or running tires over 37-38s then im gonna say leave the d44 in there but dont do locker thats when you break it for moderate tires and wheelin do d44 limited slip that will be fine

t-case in neutral wont get you very far 2hi hubs locked is fine my hubs have been locked in for 2 or 3 months now cause the snow and i have a 70km highway commute 4x a week

if you are in 4wd of dry/hard ground it will jerk and jump thats perfectly normal just cause the front wheels are pulling and turning at the same time

crawl under your truck and check the linkage you might just need some lube

2wd to 4hi you can shift on the fly but it might not kick in right away untill you push the clutch in 4low you gotta be stopped and dont go outta 1st gear in 4low 4hi go as fast as you want

as stated play around in 2wd till you get stuck then go into 4wd to get out...then repeat haha

sorry about the long post and basically saying what everyone else said but the more its heard the more its understood

 

actually suggested speeds in 4hi is no higher than 55,
4lo no faster than 35...

I agree with the 60 swap, but if you see the list of "future" mods, then a 60 swap makes since...

 

[quote=9.ford.5;6934797]

"2wd to 4hi you can shift on the fly but it might not kick in right away untill you push the clutch in 4low you gotta be stopped and dont go outta 1st gear in 4low 4hi go as fast as you want"

Why wouldn't you go outta first gear in 4 lo? That doesn't make sense. I've owned lots of these trucks and had lots of friends who have, no one has ever had a problem using other gears in 4 lo.

 

I am with you. I run 4 low a lot, and I use all 4 gears. For my style of driving, 4H is for ice and snow, low is for offroad. This way, I am not using the clutch too much.

 

Dont need to be out of a diesel.... A lot of 1-tons come with 4.10's stock. 4.10's arent bad on the highway with 36's.

I was reading your future plans...
instead of spending 2K+ for lockers and gears, do some research and you should be able to find a set of 1-tons for less than that. I wouldnt waste the money or time building up, re-gearing, and locking your axles now. Ive been there, done that. Wasted a lot of money and time Just trying to save you some hassle on my mistakes.

 

is that miles or kms lol

way i look at it is its not so much speed its rpm the only time i use 4lo is when im axle deep and trying not to spin em cause its a different ratio means the axles are gonna spin at different speeds unlike 4hi which keeps them at the same speed? thats my take correct me if im mistaken

and now that i look at his list it looks like he is gonna run the nuts off this thing so i agree with those who disagreed with me a d60 would be a good idea

 

The axles spin the same speed as each other weather your in four hi or four lo. Low range lowers the ratio to both the front and rear outputs of the transfer case. The only time the front and rear would spin different speeds is if the gears in the front and rear diffs were not the same.

 

Just for info, there's a thread in the 73- 79 forum going right now which talks about speeds in 4 wheel drive. 75F350 has a good explanation and cleared up alot of the misconceptions about transfer cases, diffs, and speeds in 4 hi and 4 lo.

 

This is a copy and paste of eds post, if found it very informative...
Hope you dont mind ed. If so let me know and i will have admin remove it...



Do you have an example of speed limits for certain speed configurations? Lets see, if I understand correctly. Is there something on a 73-79 sun visor that limits or suggests a speed limit for any given gear? This I wouldl like to see.

Is it safe to assume that even of this were true that a limit would be based upon the final drive ratio (which it is not) or might be affected by the tire size?
No limits on 4 wheel driver operation at all. There is a limit on when it can be engaged, and this is primalrilly based on whether or not the rear tires are spinning. Damage here will result, but this has to do with synchronization of the front and rear output, and not speed.

Lets see, whats next,,,,,oh. the old military must be right concept. While I am a firm beliver in the military, and spent my share of time serving, we can agree that the military is very **** about procedures, and protocol.
All I can suggest here is that military regulations prohibit "public displays of affection" and this does not mean that kissing your wife will make your lips fall off.
Just because a regulation is written, does not make it the rule, (in this case a rule about 4wd operation) it makes it the exception. As a server in the military, one must follow the regulations to the letter, but that does not mean that the regualtion is the "golden rule".
I can gurantee that even military regs (with regards to these alleged speed limitations) have been broken, and while the regs are still in place, zero damage has occured as a result.

Another example: A simple speed limit (not affiliated with 4wd use) but a simple speed limit. The Vehicle code in any state will mandate a certain safe speed for any given area, but yet, even with a "limit" we still find speeders.
Just because the limit is stated on paper, does not mean that any mechanincal damage will result if this "limit" is broken.

4wd use is not any diffrent. If your truck is capable of reaching 110 mph in 2wd, it will reach the same top speed while in 4wd. (slight drag variables will apply)
Low range will be only limited by the amount of rpm that the engine is capable of turning.

As far as different ratios from front to rear are converned, the difference between a 4.09 ratio and a 4.10 ratio is exceeded by differences in tire size, and slight variations in tire pressures. No two tires are exactly the same. This will always create a difference in total "rollout".
If these differences were so great front to rear, lockers or spools could never be run on the street, but they are every day.

4wd systems are not as fragile as many would think, or are led to believe, and thay can go as fast as horsepower will permit.
Heak, dont tell a desert racer in a 4wd class that he has to limit his speed.
Not gonna happe

 

My
Owners manual for my truck says not to go over 55 in 4hi and 35 in 4lo, it was either this truck or the jeep my family owned...


I do agree with eds post though....

Think about the guys that do mud drags....

The big dogs get wheel speed well in excess of 100 MPH...

 

I agree about mudbogs. I've even seen guys run 3rd or 4th gear in low range through the mud wide open throttle engine spinning like 6 grand, no problems with the drive line.

 

As far as suggestions in vehicles owners manuals regarding top speed in 4hi,i would propose its mostly for safety,and vehicle manufacturers liability.This is all assuming that you have got a conventional part time 4x4 system. With a part time system,you are warned not to use 4wd on dry,hard surfaced roads,SO,with that in mind,if you are in 4wd,one would assume you are in a low traction situation,right? In those conditions,oftentimes you shouldnt even by driving faster than 25 mph,since if you dont have much traction,you probably have even less braking ability.

 

very good point bob!