Whats the difference between 45RFE and 545RFE?
The 45RFE and 545RFE are identical mechanically. The difference is in the software. Before you drop the transmission, though, pull the trans oil pan off and look at the valve body. On the passenger side of the main valve body is a cover plate that covers the accumulator pistons.
Is the 545RFE a good transmission?
it’s a fairly reliable transmission, although it can stand to be tuned for better performance. its good to around 400-450 horsepower before you would need to upgrade it. just do your normal maintenance on it and you should be fine as long as you own it.
What vehicles have the 545RFE transmission?
The 545RFE made its way into Chrysler’s entire fleet of rear-wheel drive trucks, save for sedans and coupes: the Jeep Liberty, Dodge Ram, Dodge Dakota, Dodge Durango, and Jeep Commander. It was based on a similar automatic – the 45RFE.
How much does a 545RFE transmission weigh?
A truck 545RFE transmission, with converter, and fluid, weighs about 238 lbs. That’s for the 2WD version. The 4×4 version is about 8 lbs less.
How does a 545RFE work?
In the 545RFE four gears are used on the upshift and a new “gear”, 2nd Prime, was used with a different (1.50:1 rather than 1.67:1) ratio to increase versatility when downshifting. Although, with some tuning, you can get the 545RFE to upshift into 2nd Prime.
How many quarts does a 45rfe transmission hold?
[*]8 quarts of ATF+4 tranny fluid.
Is the 65RFE a good transmission?
Its a reliable transmission provided you don’t boost your engine output past its input capacity of 410 lb-ft; which is pretty much common sense. The gear ratios aren’t quite as good as some newer 6 speeds since it was originally designed as a 4 speed back in 1999, but its a good trans.
Who makes the 6 speed automatic 68RFE transmission?
Chrysler 68RFE Transmission Ratios & Quick Specs
| Transmission: | 68RFE six speed automatic |
|---|---|
| Manufacturer: | Chrysler |
| Applications: | 2007.5 – present Ram 2500/3500 w/ 6.7L Cummins (standard output versions only) |
| Total Ratio Spread: | 3.23 – 0.63 |
| Shift Control Type: | Fully electronic |
Who makes the 6-speed automatic 68RFE transmission?
Is 545RFE a 5-speed?
In the 45RFE applications four gears are utilized. In the 545RFE four gears are used on the upshift and a new “gear”, 2nd Prime, was used with a different (1.50:1 rather than 1.67:1) ratio to increase versatility when downshifting. The 45RFE later became the 5-speed 545RFE.
What is the difference between a 45RFE and a 545RFE transmission?
In the 45RFE applications four gears are utilized, with a different (1.50:1 rather than 1.67:1) second gear to increase versatility when downshifting. In 545RFE usage, an extra taller overdrive ratio is also used. Chrysler decided to refer to it as a “multi-speed automatic”.
Where is the solenoid pack on a Ford 545RFE transmission?
The solenoid pack is mounted directly to the valve body; its connector protrudes from a hole on the left side of the transmission. On the 45 and 545RFE the hydraulic control system design (without electronic assist) provides the transmission with PARK, REVERSE, NEUTRAL, SECOND, and THIRD gears, based solely on driver shift lever selection.
How many quarts of transmission fluid does a 545 take?
You will also need approximately 8 quarts of ATF 4+ as 545 transmission fluid. The converter plus transmission holds approximately 16 quarts. Who makes the 545 transmission? The RFE is an automatic transmission family from Chrysler.
What is the difference between the 65RFE and the 66RFE?
The key difference in the 65RFE is the ability to use all six forward gears in sequence when using Electronic Range Select mode. In normal drive mode, however, the 65RFE uses the shift pattern of the 545RFE; thus never using 2nd and 3rd gears in succession. 2500 and 3500 models with gas engines received the 66RFE,…