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My clutch exploded on me going down the road so I dropped the transmission and installed a new clutch.
Got it all put back together and just tested it
When you have the transmission in neutral the truck will still move forward. It's like it's stuck in first. If you put the truck in reverse it will go backwards but it's like a forward gear is also pulling and will choke the truck down.
You can put the transfer case in neutral and the truck will stay still but you can hear the gears in the trans spinning like it's in gear
I have removed the shifter and all linkages are in line and move like they should.
I'm thinking something inside let loose which caused the clutch to explode like it did.
I have a 93 with the same transmission but it's 4x2. Will it work for a swap out? What will I run into attaching the transfer case?
Ok, so you did not mention what transmission you have. But saying they are both lets say ZF5s, then you will run into different length output shafts. And you would have to address that by changing the output shaft and changing over the tail housings. The transmissions are the same, as context the the middle bit. (the actual transmission part) But again, I am sure you will run into having the swap the output shafts. Also, the transmission should, at the very least disengage when you are using the clutch. You did not elaborate on the symptoms enough. Kind of concerned there could be a clutch issue too. The constant resistance with the truck could be a serious problem elsewhere too. A clutch exploding should not be so much transmission related either... Because if installed correctly the clutch should disengage when needed, but also, fully engage the truck to the transmission at all other times.
So questions to help. Have you checked the fluid in the transmission you have? If so, is it burnt? Non existent (run dry)? Have metal shavings in it?
Have you removed the transmission yet? It is only a few bolts, and should be pretty easy. Like 14 total including the drive shaft. After removed you should be able to manually actuate the transmission and do bench testing. Such as manually placing it in Neutral and trying to spin the input or output shaft. This could very quickly answer what is going on.
Have you made sure that your other power train components are all spinning freely. With the transfer case for example, you could check for resistance. With the transfer case in Neutral you should not be able to spin the transmission at all via the axle. As the gears inside the transfer case are mechanically disengaged. Also, the gears in the transmission could very well be fully engaged while the transfer case is in neutral. So you could hear those moving. But again, without pulling things out at this point, you are not going to be sure.
Generally speaking you never need even a transmission jack to pull most of these out. For my transfer case I lifted it up to the truck without a jack and it was a BW 1356. If you are stout you could easily pull the parts out, and you should. So in summary, yes you could use the other transmission if they are identical models for parts. With some work (not a lot). But full testing is a very important thing here.
Im assuming the clutch is installed correctly because once you press the clutch the transmission quits turning. Not sure what the fluid should look like. Looks like a brownish/red tint? You can see the transmission fluid on the gears when it's turning. I do not see any metal shavings. (I have the shifter housing removed from the top to see the rails)
I removed the transmission completely to install clutch The transmission shaft would not spin freely when it was out I just assumed I knocked it into gear when I was removing the transmission because I didn't take the shifter housings off to start with.
You can put the transfer case in the neutral position and the truck will not move If you have the gear shifter in neutral the transmission will still engage and turn the gears.
Ok, so you did not mention what transmission you have. But saying they are both lets say ZF5s, then you will run into different length output shafts. And you would have to address that by changing the output shaft and changing over the tail housings. The transmissions are the same, as context the the middle bit. (the actual transmission part)
That doesn't actually work with a ZF5... The 'output' shaft is actually the 'main' shaft that all the gears are loaded on its its the last part that comes out of the case, and the first part to go back in.
So technically can do that, but its a complete tear down and rebuild of the transmission. To summarize, swapping them won't be easy. For test purposes, if they have the same wheelbase, you could swap the transmissions, leave the transfer case out and use the 2wd driveshaft.
If the transmission is in neutral, the input shaft will still spin. If your tranny fluid is molasses, its possible the truck will try and creep a hair forward, but wouldn't have any power at all. Are you on flat ground? If you are on a hill the truck will obviously try rolling by itself....
The transmission can be both in a forward and reverse gear if the linkage inside is messed up. However the gears will be locked in place and it won't turn at all.
Something isn't adding up. Are you sure it was actually in neutral? Have you checked the fluid level?
I'm thinking you may need to pull the transmission and check it out.
Also, was this a SMF or DMF? Not that it really matters, but is useful info to know.
That doesn't actually work with a ZF5... The 'output' shaft is actually the 'main' shaft that all the gears are loaded on its its the last part that comes out of the case, and the first part to go back in.
So technically can do that, but its a complete tear down and rebuild of the transmission. .
Well, yes. The Output shaft is not a shaft that simply slides on to the end. Even a C6 Auto you are completely tearing them down to swap it out. But the case and all are the same, the gears are the same, and yes forged onto the shaft. But again, if the gear are ok and say the case is cracked, or idler gear is shot. Then yes you could switch out the Output shaft (gear set) and use the case and associated parts to make it into a 4x4 ZF5. The same way a C6 could be made into a 4x4 C6. Only difference is the output shaft and the adapter and T-case. The rest is all the same.
Trans is bad, probably lost some teeth off the countershaft or a broken synchro and its locking it down, when it locked up at highway speeds it blew your clutch in the process.
Seen this too many times to count, the culprit was low oil everytime.
I would disassemble it and hope it's just a broken synchro
Yes I just changed the trans oil and it's full of metal shavings. Guess I'll be taking it out tomorrow.
Any recommended kits/guide on rebuilding one?
If there is metal shavings in the old oil, than you need new gear sets for sure. Once they are worn down or damaged. Its over for them, so you need to get replacements for the gears and pretty much all the inside bits. Unless the other transmission you have can be salvaged to save some of the parts costs.
If you want the peace of mind for not touching it again for say another 250,000 miles. Then get a reman. If you are confident with rebuilding them and are ok with not getting a ton of life out of used parts. Then you can save a bundle of money by rebuilding it yourself. But, a reman is the simple and probably cheaper in the long run option. Because if the output gear set is damaged your have to order one of those anyway.
I have used Idaho Transmission, but the shop I have worked at has an account and what not. However, somebody else may have to chime in with a recommendation. I am just not knowledgeable enough with supplier on those transmissions.
Yes I just changed the trans oil and it's full of metal shavings. Guess I'll be taking it out tomorrow.
Any recommended kits/guide on rebuilding one?
Give up on the thought of rebuilding a ZF5, parts are stupid expensive and most hard parts are not available. Not to mention it's a horrible rebuild to do. Let me guess you just changed the oil and then the trans blew a few thousand miles later?
Unfortunately I just purchased this truck a few days ago. Didn't even get it half way home before all hell broke loose. Not sure what the previous owner did.
