Buy B & M 10025 Shift Improver Shift KitB & M 10025 Shift Improver Shift Kit Product Description:
- Recalibrates your automatic transmission for crisp shifts, optimum performance, and extended life
- Eliminates shift overlap and excess wear on clutches and bands due to slippage
- Two kits in one box -- select Stage 1 for RV/heavy duty applications, or Stage 2 for street/strip applications
- Installs easily with hand tools
- Backed by the manufacturer with a 1 year limited warranty
Product Description
The B&M Shift Improver Kit can help increase the performance and durability of your stock automatic transmission. By eliminating many restrictive oil flow controls in the transmission's valve body, it allows the transmission to shift more firmly and reduce slippage and shift overlap, providing crisper shifts and reducing wear. Each kit gives you two modes of performance to select from -- RV/heavy duty or street/strip. The heavy duty option provides positive shifts without loss of driver comfort for improved performance, and is designed for regular passenger vehicles. The street/strip option provides positive shifts for high performance street use or for competitive events, and is designed for the enthusiast who wants the hardest, quickest possible shift.
Customer Reviews
Most helpful customer reviews
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Firmer shifts, help your trans live longer
By Ruben Hurtado
The B&M Shift Improver kit is a great product (actually 2 in 1 since it has 2 possible setups), it comes with all the parts necessary to modify the shift speed and firmness (in won't modify the shift points), and to augment the pump pressure output in your trans. This particular kit is aimed at the E4OD transmission found in many Ford trucks from 1989 to 1997, in my case this kit was installed in the E4OD found on my 1993 Bronco. If this is your first time messing with a transmission then this is your kit, detailed step by step intructions will help you all the way, and it isn't as involved as some other kits in the market. Regarding the quality, it's top notch (even though the supplied drill bit broke), the springs are beefy and strong compared to the stock ones you'll find in there, and there is a new cork pan gasket which is very nice (not my favorite kind, but it worked great and it hasn't the slightest hint of a leak).The installation will require some time and attention, but it can be done easily and with mostly regular tools, if the trans is out of the truck I recommend doing the pump spring modification, if not, then you'll have to do the resistor mod (this is a "either one or the other" deal, don't do both). Personally I have refrained from doing the resistor mod, but might do it in the future. Since you have to take the trans pan down I would advice adding a drain plug kit if you don't own one already, these are a couple of examples: B&M 80250 Automatic Transmission Universal Drain Plug Kit Dorman HELP! 65128 Transmission Drain Plug Kit. If like me your objective is to improve the life expectancy of your trans, the addition a cooler will also help you archieve this (heat is the #1 cause of transmission failures), I also went with B&M and installed this one B&M 70268 SuperCooler Automatic Transmission Cooler. If you want further help with the installation of both the cooler and the shift kit, enter this search in your fav search engine and you will find a pictorial ellaborated by me: "Ford (89 - 97 E4OD) B&M Trans Cooler and Shift Improver Kit install (No resistor)".The results? well, now my transmission has firm, crisp and quite fast shifts for all gears, which reduce the clutch discs wear by reducing unnecessary slippage, which in turn also reduces heat. I went with the Stage 1 which is a little softer, this left me with a firmness you can clearly perceive, but without being uncomfortable, all in all you will like this product very much.
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