Description
- 700r4 4x4 Transmission And Transfer Case For Sale
- 700r4 4x4 Transmission
- 700r4 4x4 Transmission Rebuild Kit
This Transmission has a Core Charge
The PerformaBuilt Extreme 4X4 700R4
These units are built very similarly to our Pro Race units, but the focus is on durability while maintaining reasonable shift quality. These were specifically developed for 4×4 vehicles. The shifts on these units are designed to take the abuse and work associated with these vehicles, but without the tire chirping shifts of our race and performance units.
These units feature a heavy duty, 13 vane pump with staked bushings, full-time lube modification to keep the heat down, and a modified lockup valve to improve the lockup converter’s durability so you can tow confidently in overdrive.
We use a heavy duty wide band for maximum hold in second and fourth gear. To compliment this, we use the Corvette servo. This servo is the largest servo available from GM. It will supply the clamping force needed for these heavy units but without the excessively harsh shifts associated with the aftermarket “super servos.”
![New 700r4 transmission for sale New 700r4 transmission for sale](/uploads/1/3/7/2/137240239/818280862.jpg)
For Fourth (OD), we use the Sonnax Dual Piston servo. This servo has 30 percent more holding force than the stock overdrive servo. That, accompanied with the 20 percent wider band, will let you tow in overdrive with confidence. Now you have nearly double the load capabilities of the stock transmission in overdrive.
We use carbon composite friction plates in the forward clutch set. These clutches have an outstanding friction coefficient for maximum holding. They have superior temperature capabilities and they don’t burn easily, even in the worst conditions. This is important because the clutch has to bear the load in every gear except reverse.
For the 3-4 clutch we us 8 heavy duty friction and steel plates. More friction plates than stock; which is 6 in most cars and trucks. Some additional modifications to the 3-4 set and this clutch pack prevent scoring and burning and increase hold.
We next attack a weak link, the sun shell. In particularly heavy vehicles, vehicles used for heavy loads, and those used for off-roading, constant shifting occurs from first to second and reverse. To address this, we use only THE BEAST. These sun shells do not break. They are almost twice as thick as a hardened or new OEM shell and they have a reinforced collar. You will not have to worry about that sudden loss of reverse, 2nd, and 4th gears associated with the breakage of this piece.