4wd problems
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Posting Guru
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From: Cato Arkansas
4wd problems
i put my truck into 4wd today and it starting hoping in the front end i do know the rear axle in the truck has been changed from i think a earlier year model because i have no vss. my questions are
1. if i have different gear ratio's in the front and rear axle's would this cause my problem
2. to fix this could i get new axles out of a super duty and they just bolt right up?? and if so are they expensive.
3. to check to see if different axle ratio's is my problem could i unhook the rear drive shaft and see if the hoping goes away
4. could it be a bad wheel bearing?
1. if i have different gear ratio's in the front and rear axle's would this cause my problem
2. to fix this could i get new axles out of a super duty and they just bolt right up?? and if so are they expensive.
3. to check to see if different axle ratio's is my problem could i unhook the rear drive shaft and see if the hoping goes away
4. could it be a bad wheel bearing?
Carpenter Local 745
Joined: Apr 2006
Posts: 5,794
Likes: 11
From: on da beach
To help you with your problem, try listing what you are driving so we have a clue about how to help you.
Sound like you bought the truck from a previous owner, is this the case?
What makes you think that the axle-gears-etc have been swapped?
IF they are - try to find out what they are - data tags should be on each of the axle housings - maybe we can get a clue on type and ratios.
1. Different axle ratios will cause bind.
2. I do not think replacing axles or other related parts will be needed unless there is severe mechanical damage. I would check everything completely first.
3. You could remove the DS, but I would not advise this.
4. If it were a (wheel)bearing it would act like this all the time.
Like I mentioned earlier- we need to know what truck and running gear.
Sound like you bought the truck from a previous owner, is this the case?
What makes you think that the axle-gears-etc have been swapped?
IF they are - try to find out what they are - data tags should be on each of the axle housings - maybe we can get a clue on type and ratios.
1. Different axle ratios will cause bind.
2. I do not think replacing axles or other related parts will be needed unless there is severe mechanical damage. I would check everything completely first.
3. You could remove the DS, but I would not advise this.
4. If it were a (wheel)bearing it would act like this all the time.
Like I mentioned earlier- we need to know what truck and running gear.
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Posting Guru
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From: Cato Arkansas
the truck is a 97 f250 4x4 regualar cab i don't know the axle ratio's or what axle the rear is because it has been swapped i've looked all over the rear axle and can't find anything on it but i know it doesn't belong in the truck because no vss and my truck was suppose to have a limited slip axle and the one in it is open i really think it's different axle rations because it will hoop in the front end even at low speeds i can't drive fast at all the truck kinda wants to pull from side to side and the front end will hoop or bounce
Post Fiend
Joined: Oct 2003
Posts: 5,903
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From: MICHIGAN
Originally Posted by arkredneck
i put my truck into 4wd today and it starting hoping in the front end i do know the rear axle in the truck has been changed from i think a earlier year model because i have no vss. my questions are
1. if i have different gear ratio's in the front and rear axle's would this cause my problem
Yes
2. to fix this could i get new axles out of a super duty and they just bolt right up?? and if so are they expensive.
You need to change the gears...not the axle. If you mean upgrade to a D60...it's not necessary but a nice addition.
3. to check to see if different axle ratio's is my problem could i unhook the rear drive shaft and see if the hoping goes away
Yes
4. could it be a bad wheel bearing?
No, If it only happens in 4WD
1. if i have different gear ratio's in the front and rear axle's would this cause my problem
Yes
2. to fix this could i get new axles out of a super duty and they just bolt right up?? and if so are they expensive.
You need to change the gears...not the axle. If you mean upgrade to a D60...it's not necessary but a nice addition.
3. to check to see if different axle ratio's is my problem could i unhook the rear drive shaft and see if the hoping goes away
Yes
4. could it be a bad wheel bearing?
No, If it only happens in 4WD
Thread Starter
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Posting Guru
Joined: Aug 2007
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From: Cato Arkansas
i just changed the fluids and it looks pretty like a pain to open up the front axle is there any way i can tell without opening up the axles can you some how count how many times the front wheels turn compared to the driveshaft on the front and the same for the rear?
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Carpenter Local 745
Joined: Apr 2006
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From: on da beach
I agree, open them up and replace the highest set to the lowest.
Good time to check for broken parts too.
IF the front is the original diff/axle assembly, you should be able to locate the data tag. What is the axle code on the door jamb?
Good time to check for broken parts too.
IF the front is the original diff/axle assembly, you should be able to locate the data tag. What is the axle code on the door jamb?
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Thread Starter
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Posting Guru
Joined: Aug 2007
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From: Cato Arkansas
well i found out the front axle is a 3.54 and the rear axle is a 4.10 what do yall think a rear axle that has the same gears and a limited slip would cost me and where would be the best place to find one i know i could just swap out the gears in the axle i got but since the one i have doesn't have the vss i would rather just get one that will work with the truck
Hotshot
Joined: Oct 2003
Posts: 17,791
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From: Ashland City, TN
depends, do you like your 4.10?
and the front should be a 3.55, but i guess it could be a 3.54.
you probably have a 10.25 rear end I'm not sure what the cost is, but its a 3 bearing pinion, and full floating rear end.
You can't "just change axles" you have to change one of the ring gears. So a ring and pinion set i think runs about 400-1500 dollars?
If you change ring and pinion, you also need a pinion shim kit, and a differential shim kit.
The backlash has to be set properly, thats what one set of shims are for, and the pinion shims are for setting proper teeth connection so its in the middle, and not on the ends.
If you can find somebody to trade rear ends with, you'd be better off.
If your changeing pinions and ring gear, you'll need a press to press on the bearings also when you buy them.
Depends on how much work you want to do, but if your going to use 4x4, you need to do it where the ground is soft, and not on pavement or hard surfaces.
and the front should be a 3.55, but i guess it could be a 3.54.
you probably have a 10.25 rear end I'm not sure what the cost is, but its a 3 bearing pinion, and full floating rear end.
You can't "just change axles" you have to change one of the ring gears. So a ring and pinion set i think runs about 400-1500 dollars?
If you change ring and pinion, you also need a pinion shim kit, and a differential shim kit.
The backlash has to be set properly, thats what one set of shims are for, and the pinion shims are for setting proper teeth connection so its in the middle, and not on the ends.
If you can find somebody to trade rear ends with, you'd be better off.
If your changeing pinions and ring gear, you'll need a press to press on the bearings also when you buy them.
Depends on how much work you want to do, but if your going to use 4x4, you need to do it where the ground is soft, and not on pavement or hard surfaces.
Last edited by Talyn; Oct 28, 2007 at 04:11 PM.
Post Fiend
Joined: Apr 2004
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From: Silver Lake Dunes, MI
Yes that is certainly your problem. You have two options. change the rears or change the fronts. Either way i would I buy complete axle housings from a salvage yard. You could get those cheaper than you could take your truck to a mechanic to have the gears swapped and set up correctly.
Do you have a 5sp or auto tranny? I would have to guess you have a 5sp cause these auto's don't work without the VSS on the axle. if you have an auto does it shift right? any way if you do want to keep the 3.55's I would definately get a rear axle with the correct sensor. If you want to keep the 4.10's I would look into a dana 60 but those aren't cheap. So the dana 50 TTB will be much cheaper.
Do you have a 5sp or auto tranny? I would have to guess you have a 5sp cause these auto's don't work without the VSS on the axle. if you have an auto does it shift right? any way if you do want to keep the 3.55's I would definately get a rear axle with the correct sensor. If you want to keep the 4.10's I would look into a dana 60 but those aren't cheap. So the dana 50 TTB will be much cheaper.
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Posting Guru
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From: Cato Arkansas
i don't like the 4.10 i got a 5 spd and never have to use 1st gear thats why i'm wanting to go back with the 3.55's that and fuel mileage what do yall think a complete axle should cost me i don't wanna get my head ripped off and gotta get the 4x4 working right