CLB.... This is exactly what I was looking for and I was thinking the weak link would possibly be the more torque in front of the U joints instead of increasing behind. Thank you. I'm thinking I'm going to do the 4.56 gear and double overdrive route.
I have looked into the brownie boxes...
Thank you Cant Write. I know more gears are better. Hence why semi trucks have so many to get the load moving. You always have a gear for the speed you're in to maximize pulling power. I've never heard that about getting the gearing as close to the engine as possible. Would love reading...
Thank you for that info. I haven't heard that one before. Interesting.
I have a 7.3 excursion I was going to install one of the units on eventually. It has the 3.73 gear and I figured slow RPM on it could be nice for an interstate cruiser. Going to have to watch those temps I guess. Thank you
To answer questions. My tire size is stock and the rpm to speed ratios above are with that stock tire size. 215/85-16
I have a few US gear units. Under and overdrive.
The goal is to keep the truck in a good rpm range say 2600 rpm at 73 where I tow a lot on the interstate. That way my turbo...
Ok so I'm rebuilding my truck. 94 crew cab dually turbo. Going back to an E4OD from the zf and looking at gearing. This truck pulls fairly heavy loads at times. Currently I have a 3.55 gear in the rear but considering going to a 4.56 now that I have an option for a double overdrive. I was...
Yes the white plastic bushings were replaced. Also the clutch probably has about a 1000-1200 miles on it. I am wondering if the pilot bushing may have been damaged while installing the transmission.
Ok. Update. Just dropped by the transmission shop and looked at it with the owner. It looks like there may have been some play in the pilot bearing. Being 4th is a direct drive any play in the system is multiplied there. I think this is truly the problem but we're going to replace the...
Ok so I am dropping the engine off at the machine shop today and I took the transmission to the shop last week but I have a problem with it and want to pick your brains. This ZF S5-47 is originally from a 460 superduty. The transmission shifts great. but going down the road coasting in 4th...
They are good people and they do stand behind their work. I will have them check roundness also. Thank you all. Depending on my work schedule I will try to get it to their shop later this week or the first of next week.
ok... Update. I called the machine shop and talked to them for about 30 min. This engine even though its low mileage has been a forever project and it's been a few years since the machine work was done. After talking to the shop they want me to bring the block back in and let them rehone the...
Yes I agree dirt or something got into the cylinder. I think it must have come from the oil system as the rod bearing has the scratching also. I think it may have been injected into the cylinder with the oiler that cools the piston. The dirt you're seeing on the pistons is from the teardown...
I agree with you. I am very concerned. The crosshatch is still there but the flash with the phone I was taking the picture with makes it look like it isn't. I am going over everything with a fine tooth comb. I think a piece of trash may have been in the oil galley after boring and cleaning...
I have an engine that has less than 2500 miles on it since rebuild. The engine was doing great but developed a lot of blow by around the 1800 mile mark. The It is a factory turbo engine. The CDR was new when this started but since then I have installed a catch can system from CDD and the...
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