SKU: 42389903550

SunCoast Category 4 700HP 48RE Transmission Rebuild Kit w/ Torque Converter & Flex Plate 03-07 Dodge

Sale price$2967.75 Regular price$3297.50
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Description

SunCoast Category 4 700HP 48RE Transmission Rebuild Kit w/ Torque Converter & Flex Plate 03-07 DodgeSunCoast's Category 4 48RE rebuild kit includes everything necessary to build your 2003 2007 Dodge 48RE transmission well beyond the capability of the factory 48RE. This high performance rebuild kit is for customers seeking significant improvement over the stock transmission along with improvements to the band, band actuation, servos, accumulator piston, torque converter, input shaft, output shaft and forward drum. The addition of the billet

SunCoast's Category 4 48RE rebuild kit includes everything necessary to build your 2003-2007 Dodge 48RE transmission well beyond the capability of the factory 48RE. This high-performance rebuild kit is for customers seeking significant improvement over the stock transmission along with improvements to the band, band actuation, servos, accumulator piston, torque converter, input shaft, output shaft and forward drum. The addition of the billet intermediate servo, billet band anchor and billet band strut allow this kit to address the common known deficiencies of the 48RE. SunCoast's kit also comes with a new billet blueprinted 4.4 band lever. A new thrust washer kit also contains selections for setting endplay.

The 23-Spline Triple Disc Billet Torque Converter that comes with this kit comes with a 2,000 RPM stall speed. The torque converter is lined with carbon graphite clutch material and equipped with a precision CNC machined forged billet apply piston to ensure no deflection occurs.

The Category 4 kit also includes SunCoast's one-piece billet 23-spline input shaft. The shaft is crafted from 300 maraging steel and is then heat treated and stress relieved to handle the additional demands of higher torque and stress loads. Fitment isn't an issue as the shaft is precision ground to make it a true drop-in replacement.

Included in the kit is also a band upgrade. While some other SunCoast kits include a Raybestos Pro Series carbon fiber flex band, in this kit they use a billet rigid band. This band is CNC machined from billet steel and then lined with carbon graphite lining to ensure unmatched performance even by other manufacturers.

SunCoast's Category 4 rebuild kit also includes upgrades to the flexplate. The factory 48RE flexplate is replaced with a SunCoast one-piece billet unit. The billet 48RE flexplate exceeds 29.3 SFI certification which is the standard for racing and sled pulling. The billet one-piece design is CNC machined from a single forging, and specific reliefs are machined out between the converter mounting area and the crank flange to enable minimal designed torsional flex.

SunCoast Category 4 rebuild kits replace the factory cast pistons with new billet apply pistons. The direct piston is also included with new custom calibrated springs while the forward piston is replaced with a new billet piece. These two improvements allow higher clamping forces without any deflection occurring. Giving a much more direct shift feel and eliminating potential cross leaks within the drum.

Another piece included in this kit is a full billet rear clutch retaining hub, made from 4140 heat-treated, stress-relieved billet steel versus the OE cast piece. The factory cast retainer is known to fail in high torsional fatigue situations such as higher line pressure, commercial use and heavy duty towing and hauling. This new billet piece is stronger, more reliable and is the performance correction you've been looking for.

Lastly, a billet output shaft is added to the Category 4 kits. Designed for higher horsepower/torque engines, this performance product has been tested in excess of 1,400 ft/lbs of torque. The shaft is machined from 300M material then heat treated for torsional strength and precision ground on all critical diameters.
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SKU: 42389903550

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SeanCeltiad
San Leandro, US
★★★★★ 4
A true turtleneck that retains a snug high neck.
Color: White, Size: X-Large
I've found this brand to have gotten better over the years as far as offering the American market what it needs in terms of realistic sizing. I only wish they'd realize that there are a lot of us who are long in the back and arms where my only choice is to go a size up and sacrifice a slim fit for sleeves that are long enough plus a back that doesn't go up past my waist just because I reach up for something, that and I like to be warm. So these are such nice quality turtlenecks that it's hard to complain about but maybe the company will read this. The snug neck stays up is plus number one since that's why I'm buying a full neck. They come with very nice weaves in the fabric, good enough for casual or formal wear. Finally the warmth you seek is there but I've worn them in what most would think isn't the right temp for a turtleneck. Also they have them in white! Yes, a lot of others just don't for reasons I can't fathom, and the pic you're seeing is accurate, these will form to your shape without being ridiculously thin material. Several washes later and they are as fine a garment as when I first wore them. I've only found one other brand that compares to these but it's much more expensive, COOFANDY is affordable in these times of expensive everything. Warm but also a lightweight shirt, I've gotten them really dirty with actual dirt and it washes out so well you'd never know it. Don't let my taking off one star stop you, try one yourself and you'll be coming back for more.
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Reviewed in the United States on July 30, 2025
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Larry
Battle Creek, US
★★★★★ 5
Quality,warmth and fit
Color: Royal Blue, Size: Small
Really top quality. This is my 4th purchase of these Really great sweaters.
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Reviewed in the United States on February 12, 2026
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Robert III
Houston, US
★★★★★ 5
Nice Sweater
Color: 01-black, Size: Large
This is a very nice sweater. It’s reasonably thick and warm. Looks nice. I like it.
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Reviewed in the United States on January 18, 2026
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Tajuana Perkins
Dallas, US
★★★★★ 5
Nice turtle neck sweater
Color: Royal Blue, Size: Small
It was true to size a perfect fit and the color is beautiful. Nice sweater for the amount paid.
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Reviewed in the United States on January 11, 2026
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Nathalie M. Rosario Escobar
Grantham, US
★★★★★ 5
Very good
Color: 01-black, Size: Small
It looks so good on my bf, he really like it. The quality is so perfect.
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Reviewed in the United States on January 15, 2026

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