If your Ford F150 needs a new transmission, consider removing and installing the transmission at home. . Vehicle has a non-serviceable transmission cooler. Unfortunately the spacing between 1st, 2nd, and 3rd gears is a bit too close for it to be ideal, so it's not much different than the 4R100 as far as gearing goes. It has the lowest first gear ratio for an automatic, but the very unfortunate fact is that the low first gear is not complemented with an equally low reverse gear.
I would not recommend using either of those transmissions in stock form behind even a mildly turned up Cummins diesel. Power increases are a test for the Allison trans as well, so unfortunately if your Cummins is turned up you will need to spend some money on aftermarket transmission parts no matter what. Trans Swap Cost in Fordcummins Comparison: Just a few definition clarifications on these. If you have 37 tires and a 3. It has 6 pinion planetaries and hydraulic accumulation for all shift events.
Maybe the next trans Ford builds will be better. Loosen each bell housing bolt around the front of the transmission with a ratcheting wrench, extension and socket. Place a floor jack under the transmission pan. If you must tow 25k with your pickup at 70 mph, then consider the not so easy task of stuffing a medium duty truck transmission in your pickup that has 8 gears or more. Not necessarily so with racing- as the early control systems are limited to converter lockup in 5th and 6th gears only- no 3rd lockup is available without tuning tricks that may or may not work. Remove the cross member that lies under the transmission tail. Ford ® 4R100 Ford 4R100 Ratios 1st - 2.
There are cheaper offerings out there, but remember- cheaper is often not better! Getting one built to handle even a 350 hp Cummins will cost you a good chunk of money and it will still give you problems. My transmission had been whining for about 2 years prior to this but there was no slippage in the transmission. The table below lists out the gear ratios of many popular transmissions used in diesel pickups, and if you click on the transmission name in the table it will take you to general information about that transmission. Use ratcheting wrenches and open end wrenches to loosen and remove these fasteners. I do not recommend aftermarket control systems for this transmission at this time.
No matter what engine you have, these wide ratio changes result in poorer fuel economy, and require the engine to work harder when pulling heavy loads. An F150 automatic transmission repair from AutoZone alleviates these issues and lets you rest assured that your ride is performing at the best of its abilities. Remove a Ford F150 transmission at home with a little help from a friend and some common tools most home mechanics have available. Fourth gear is a joke that Ford played on everyone- it never really gets used unless the control system isn't happy about something, and isn't worth using anyway- 5th is the same as the 4R100 3rd gear and 6th is the same as the 4R100's 4th. To separate the drive shaft from the rear axle, turn the drive shaft and pitch the four-way bearings so they can be freed from the rear axle yoke.
All the transmissions listed are high level builds, and core charges are added to the price. The 4R100 comes in the gas or 7. I figure if a guy is going to go to the trouble to make the best truck out there, he should probably have the best type of transfer case too. Gas versions may have cheaper planetaries and other hard parts in them so don't use one behind a high performance diesel without first sending it to a reputable transmission builder. If you are going to shift gears you might as well have plenty to choose from. The high reverse and the wide 3-4 gap make it a really poor performer in a work truck.
One would expect to see a lower reverse ratio with the low 1st gear as well, but it is not as low as it should be. Custom adapter and flex plates, driveshaft modifications, control system and tuning, and getting the transfer case you want connected if your truck is a 4x4 all adds up to a very significant investment. Transmission Swap Comparisons If you are considering a transmission swap the following comparison information can be very helpful in your decision making. When swapping a newer or older Ford trans be aware that the 5R110 and the 6-speed manual transmissions have a larger output shaft than the 4R100, so your input may need to be changed. Secure your new Ford F150 automatic transmission parts through AutoZone today and take advantage of free battery charging and engine diagnostic testing during your next visit, as well as access to our handy Loan-a-Tool program for quick installation. I don't recommend them as an option for a transmission swap, unless your engine will break whatever is behind it anyway and you plan to rebuild or replace your trans after a few race events. Most manual trans swaps are fairly straightforward, be very careful to do your homework.
You might start to notice spinning without your truck actually moving forward or your transmission slipping in and out of gear while you drive. This price may include buying core driveshafts to modify- as would be needed in swaps when a slip yoke style transfer case is being replaced with a fixed yoke style transfer case. Update: The transmission overdrive clip had broken when it started whining 2 years prior to the making of this video. They are not as easy to find as the others listed here, and I'm not overly impressed with the gear ratios. When adapted to a Cummins, it is often possible to bolt up a gas version 4R100 case to your existing adapter plate, however I definitely would not recommend replacing a 5R110 with a stock gas version 4R100. Easiest is not always best! Gear ratio data was gathered from reliable public data available on the internet. If you are planning to do the swap yourself use this to estimate your time, but you might want to double it.
The gear ratios are in my opinion the best available for the Cummins diesel so far. Band adjustments are necessary to keep them from burning up, line pressure control is poor, and the filter to valve body connection was designed in the 1960's, depending on two or three tiny screws to hold it on. The gas version is almost the same as the 5R110 pattern the gas 4R100 is missing two holes on the top , so it is possible to bolt a gas 4R100 case to most aftermarket 5R110 adapters and even 6. A part of the clip had wedged itself into another part of the transmission so a overhaul was necessary. Ask yourself if you really want tire chirping upshifts at 10% throttle and relatively soft shifts at full throttle- I sure don't. Tuning can help a stock transmission live behind modest performance increases, but clutch upgrades are recommended for anything serious- such as 400 hp. Assume you already have done the Cummins engine conversion- the adapter plate cost is only included in case you have to change yours.