BottleHauler84

Good point! I forgot that some of them may not have those marks for valve adjustment. I agree with you 100% having one with the marks would be preferred.

No, this has a vmac pump on it.

I recently bought a E7 400 Vmac1 at an auction for parts. They said it had a knock so I got it cheap. After getting it home I discovered that what was wrong with it was the six 13mm bolts that hold the balancer and pulley onto the crankshaft hub had come loose and let the balancer run loose for awhile and destroyed the hub, bolts, balancer and pulley. Not really a big deal because I have all those parts. After inspection of the engine everything looks great so I decided to fix the small problems and keep it as a good spare for my CH. However there was a couple things missing. The starter, no big deal because i have one....but the flywheel. That's the problem I have. I'm not sure what flywheel# was on it or what ones will work. My neighbor has a 530GB544AM that I can have. It does have the engine timing sensor reference marks on it. I'm curious if there's a balance issue depending on horsepower or what for it to be used. Engine serial is# 5503M331136418 if anyone has any ideas on that.

Are you sure it's Vmac1? I was under the understanding that by 95 everything was Vmac2...maybe you have a late 94 build? At any rate, I use these 2.

We located some shafts at a salvage yard that came from a set of 44k axles that had crd202/203 rears in them. I want to say the long side we needed was right at 45" length and the short side was 36" but I'll get the part numbers from them when I get back home. Goody's truck parts in Toledo has a ton of Mack axles, housings and diffs. They had what we needed

Wow, I hadn't give much thought to that but I see what you're saying Joey. As far as the tools go, I've been reading my manual quite a bit and yeah you're right there's definitely some specific tools for overhauling these.

Right! You know, it's interesting to get the 92/93 carriers out on the shop floor and set them next to the 202/203 to actually look at the differences between them. The 200 series are quite a bit more robust internally, but looking at both series still setting in the truck you'd never really know just how much more they really are.

Update: I wanted to update this thread with some information while doing this swap in hopes it will help someone else out incase they are in a situation like me and needing to swap. The 202/203 will indeed fit the axle housing that the 92/93 came out of as you guys suggested, but talking to few others BEFORE i posted my original post, there seems to be some confusion about this. Some folks say they are not interchangeable.....they technically are interchangle with an exception. Axle shaft length. The only problem we encountered in this swap was the axle shafts are different lengths due to the 202/203 having the bull gear offset about an inch towards the long side of the axle housing due to the 202/203 case design. So the crd92/93 long side was to long, and short side was to short to fit the crd 202/203 properly. So in short, the 43 spline 92/93 long side axle shaft will be LONGER than the 43 spline 202/203 long side axle shaft by about an inch, and the 43 spline 92/93 short side axle shaft will be SHORTER than the 202/203 short side axle shaft by roughly the same. I hope this information might help anyone interested in this.

Good to see a fellow MH guy. Jason, I just recently replaced my cab jack pump on my 93 MH. PowerPacker makes them and it was around $400 brand new. https://ohiohydraulic.com/power-packer-hp50034204-hand-pump-4000psi-35ci-69-spindle/ Also, beware when putting new fluid in that system. Don't mix hydraulic oils or use transmission fluid. It's recommended to use the military aerospace grade hydrulic oil MIL-H-5606A in that hydraulic system for the cab, especially if you are in cold winter area. This (or an equivalent)is technically the correct oil for that system. It's kinda pricy, but it's the recommended oil. I bought a gallons worth and they were super fast on shipping. https://www.aircraftspruce.com/catalog/lgpages/hydfluid5606qt_09-27000.php

That's exactly what I was needing to know. Thank you guys for the info!

Brett did you ever get this truck sorted out?

I was thinking of going this route on my vmac1 E7. What year if you E7 with the BW s400 on it?

I'm looking for a Blixxton box to put on my 93 E7, but so far I can't seem to find one. Would you happen to know where a might find one?

This actually might be worth trying. I like the way you think!!!

How does a man take a CCRS 460p and go to a 427 and get rid of the derate issue? I'm thinking of going this direction, but I don't know if I'm going in the right direction. I guess what I'm wanting to do is overhaul my 2002 ccrs 460, and new cam, bearings and lifters. I'd like to be able to install a bw 701 turbo and stage 2 injectors but not get the dreaded derate mode over 33psi of boost. Anyone have a good recommendation on what route to go on this? I'm not looking to build a monster, but I'd like to get to the actual 450-500 range of power with good torque. I have an RTLO22918B transmission, heavy driveline and Mack CRDP202/203 Rears, so I'm good on being able to harness the power with no issues I believe.

I appreciate it Joey. Is there much difference between the ccrs cam versus a non ccrs ETECH camshaft? Other than the cam key?

My ETECH 460 needs a camshaft due to lobe on #1 lobe bad due to a broken lifter. My question is, when rebuilding this engine, would it be beneficial to rebuild it an older E7 spec (camshaft, pistons, injectors and EUP) and reprogram to a 427 file and then upgrade turbos and put better flowing nozzles in? I never was super excited by the power of this 460 and I'm not sure about using bigger nozzles with the CCRS 460P with wasgated turbo because of the boost range issues they have and go into derate. I was just thinking maybe go 427, bigger. Turbo and nozzles and still enjoy the updated version of the latest pre-emission E7 ETECH. Just wanted some opinions on this if anyone has any recommendations.

P.L. Roark, have you made any progress on this project? Just curious.

Mack technician is a wealth of knowledge. If you don't mind my asking, what happened to him? Looks like he hasn't been here since 2020.

Thanks guys. I was just curious, I've never been told weather they were interchangeable or not. The CRD203 are in a 2002 cx613 I have with a e7 460 and 18 speed. Maybe that explains why the factory put 202/203 carriers in it instead of 92/93? I did verify they are the 203 series as Joey suggested. I've had a couple trucks with 92/93, but never owner the 202/203 series before.

I was curious if the CRD92/93 series carriers will interchange into the same axle housing as a CRD202/203 and vise versa? Also, one of my trucks is a 2002 cx613 with the CRD203 carriers per my local mack dealer. I understand they are a heavier built carrier than a 92/93 series but what I don't understand is why they would put them in an air ride tractor as 38k rears. I'm just curious on that.