gear changes
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gear changes
i have a 1996 f150 4x4 with a 300 six and 308 gears .i pull a 16 ft horse trailer witch weighs 4000 pounds without horses .has any one regread if so to what ? i am thinking about 3.73 .the truck handles the load very well but its hard on hills some i have to drop to 2nd gear .i know i shold move up to a f250 but mine is paid for and it runs great .love the 300 ..
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Originally Posted by bass2catch
i have a 1996 f150 4x4 with a 300 six and 308 gears .i pull a 16 ft horse trailer witch weighs 4000 pounds without horses .has any one regread if so to what ? i am thinking about 3.73 .the truck handles the load very well but its hard on hills some i have to drop to 2nd gear .i know i shold move up to a f250 but mine is paid for and it runs great .love the 300 ..
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Cargo Master
Joined: Dec 2003
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From: Sunny Florida
I agree with The Snoman. 4.10 gears all the way and if you do the math the 4.10's won't change the rpm much from 3.73 gears. With the 4.10 gears the motor will work less and so will the trans which will only add to the life of them.
Post Fiend
Joined: Mar 2005
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From: Louisiana
4.10s would be like running 3.73 with no overdrive.
If you haul it freqently then go 4.10s, but if you only haul every now and then and travle the highway alot then 3.73 would be good to go with.
You would have to regear front and rear diffs and that's no cheap bit.
Expect to pay someone $800 tops, a axle(depending if you want any lockers or limited slips while your in there).
If you haul it freqently then go 4.10s, but if you only haul every now and then and travle the highway alot then 3.73 would be good to go with.
You would have to regear front and rear diffs and that's no cheap bit.
Expect to pay someone $800 tops, a axle(depending if you want any lockers or limited slips while your in there).
Last edited by MBBFord; Dec 27, 2005 at 11:40 AM.
Cargo Master
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From: Sunny Florida
It all depends on where you go and who you know. I repaired a full size bronco for a guy that was qouted $1100 to rebuild the front axle and the problem was not in the gears. His auto hubs failed. Needless to say the repair was much cheaper than his rebuild qoute.
The front axle does reqiure a bit more labor than the rear.
I am currently rebuilding a 10 bolt for a customer and the price is just under $500 and parts are almost $300 and we have the cheapest labor rate in town and do more work than Firestone down the street from us.
The front axle does reqiure a bit more labor than the rear.
I am currently rebuilding a 10 bolt for a customer and the price is just under $500 and parts are almost $300 and we have the cheapest labor rate in town and do more work than Firestone down the street from us.
Post Fiend
Joined: Mar 2005
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From: Louisiana
Well, the best place around me charges about $300 a axle for labor, and I'm going to install gears and lockers, and they'll charge me about $800.
As far as my rear, I have a 9", so I'll just buy a new third member for about $600 shipped to my house with everything including a detroit locker.
As far as my rear, I have a 9", so I'll just buy a new third member for about $600 shipped to my house with everything including a detroit locker.
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Hey guys,
It also depends upon what you do. Low cost ring and pinion changes are normally low cost because you just got your old used pinion bearings reinstalled. Also, it is very likely that you will get your old tired carrier bearings put back in too. I personally have no problem putting the old bearings back in, but I always inform the customer that he is saving money in the short term. I have done a lot of differentials and I would say that 300 dollars is right on par for the rear end using your old bearings and a customer supplied gear set. However, I'd say 400-500 dollars is more reasonable for the front. You likely need have your hubs cleaned up and the bearings repacked. Also, I bet you could use some front brakes. I personally would do all of it if it has been a while. Do note: if you do brakes don't let them charge you full price. They have to take everything apart anyway to change your gear set. Some shops "forget" that they are double charging with labor on this one. Good luck, hopefully you will have no whines when done.
It also depends upon what you do. Low cost ring and pinion changes are normally low cost because you just got your old used pinion bearings reinstalled. Also, it is very likely that you will get your old tired carrier bearings put back in too. I personally have no problem putting the old bearings back in, but I always inform the customer that he is saving money in the short term. I have done a lot of differentials and I would say that 300 dollars is right on par for the rear end using your old bearings and a customer supplied gear set. However, I'd say 400-500 dollars is more reasonable for the front. You likely need have your hubs cleaned up and the bearings repacked. Also, I bet you could use some front brakes. I personally would do all of it if it has been a while. Do note: if you do brakes don't let them charge you full price. They have to take everything apart anyway to change your gear set. Some shops "forget" that they are double charging with labor on this one. Good luck, hopefully you will have no whines when done.
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Senior User
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In most cases it is better to tow in 4th gear anyway. For one, in fourth gear no power is going through any of the gears in your transmission. In fifth, you go through your input gear, your cluster gear, and then your dinky overdrive gear. Another benefit about 4th gear is your truck likely runs cooler AND you probably are running at a more efficient RPM when you are towing. In fact, I bet you would get better fuel economy in 4th gear when you are towing your trailer. Good luck with your gear swap.
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Originally Posted by bass2catch
i onle haul about every other weekend for 20 to 30 miles .but i would like to go farther with more ease .if i am on the interstate i can run 5th gear some but mostly 4th .
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when i am parking,turning around or pulling out on a steep hill i put the transfer case in 4 low but the hubs are not locked in .this helps with clutch strain .i dont know about the 4.10s because the truck will be driven about 30 miles a day to work .i was wondering if anyone has changed to 3.73s and what the results were .
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i have talked to a local axle shop they said $1350 for both ends including parts also he said they use new bearings and dana brand parts . and a 6 month warrenty 4.10 and 3.73 are the same price .i guess i will put in a tack in the truck to find the rpms and do the math .the shop guy thinks with the 5 speed i would be ok with 4.10s. but i wounder how that would be for driving every day..........thanks for all the help
also i am thinking of going to 31.1050 tires i have 235 now .
also i am thinking of going to 31.1050 tires i have 235 now .
Last edited by bass2catch; Dec 30, 2005 at 06:05 AM.
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Originally Posted by T.R.Bauer
What is wrong with 390s?