White93z34 Posted April 24, 2018 Report Share Posted April 24, 2018 Wow, this is awesome. I have one I will be attempting to take apart soon. It sounds like aside of taking apart the detent assembly, that there isn't a ton of magic is splitting the case. My end goal is to get into the blocker rings and attempt to get new manufactured. However being able to disassemble and reassemble it is solidly the first step. Do you have any pointers for someone splitting the case for the first time? Quote Link to comment Share on other sites More sharing options...
JoninMi Posted April 24, 2018 Report Share Posted April 24, 2018 Wow, this is awesome. I have one I will be attempting to take apart soon. It sounds like aside of taking apart the detent assembly, that there isn't a ton of magic is splitting the case. My end goal is to get into the blocker rings and attempt to get new manufactured. However being able to disassemble and reassemble it is solidly the first step. Do you have any pointers for someone splitting the case for the first time? Getting it apart is not so bad, getting it back together without the assembly fixture will not be easy. (holding shit rails in place along with reverse - Ive done it, but tricky. Need to good pullers for removing the gears from the shaft, if I remember you need a very thin plate puller for 5th speed gear. Detent assembly is simple with 2 small flat screwdrivers. Grease the balls into the detent block, place the springs in it, and set in place. The other ball guide into place with screwdriver while holding spring back with other screwdriver, once balls are in place use screwdriver to push block into place and bolt it up. Do not lose the pin in the detent end of the shift rail. Another tip for the shift linkage assembly (internal) is to make a bar (or dowel) the same diameter as the shift linkage and preassemble the linkage onto that and put it in place, then push the dowel through with the shift rail. digitaloutsider 1 Quote Link to comment Share on other sites More sharing options...
White93z34 Posted April 25, 2018 Report Share Posted April 25, 2018 Perhaps I'll be able to build a fixture. I saw a picture of it in the 1992 service manual. At least gives me an idea of what I may need. I need to find some time to start breaking into this pandoras box. I'll absolutely take lots of pictures along the way. Worst case I end up with a box of broken parts, which is what I have currently so nothing to really loose here. I'm sure I'll have lots of questions as I pull it apart. Quote Link to comment Share on other sites More sharing options...
JoninMi Posted April 25, 2018 Report Share Posted April 25, 2018 I wish I were closer to Pittsburgh, I would love to get my hands on one and assist. Its been 20+ years!! Quote Link to comment Share on other sites More sharing options...
White93z34 Posted April 25, 2018 Report Share Posted April 25, 2018 Where are you located? I'd happily travel to learn. Imp558 1 Quote Link to comment Share on other sites More sharing options...
oldsconvert Posted April 26, 2018 Report Share Posted April 26, 2018 So I converted my 95 olds to a getrag 284 and lost my 2nd gear. Have a place in california willing to fix it but they need a donor 2nd gear. Anybody got one. Don't want to miss the summer throwing the shifter Quote Link to comment Share on other sites More sharing options...
JoninMi Posted April 26, 2018 Report Share Posted April 26, 2018 Where are you located? I'd happily travel to learn. Michigan, but I have no tools or access to a garage anymore. But when you start breaking into it take a lot of pics and go slow, I'll give any advice I can as you move along!! I'll set up notifications to this thread Quote Link to comment Share on other sites More sharing options...
White93z34 Posted April 26, 2018 Report Share Posted April 26, 2018 will do, greatly appreciate it! You are literally the last person I expected to find this. Quote Link to comment Share on other sites More sharing options...
JoninMi Posted April 26, 2018 Report Share Posted April 26, 2018 will do, greatly appreciate it! You are literally the last person I expected to find this. I was talking to some friends about old stuff we used to work on and I brought up manual trans, specifically the 284. I was shocked to find this because it was such a long time ago and not many were made. It sure does bring back some memories!!! Reading through these threads I sure wish I had all the brand new parts I had 25 years ago!!!! Back then I could assemble one blindfolded (not kidding!) ss427, Imp558, oldmangrimes and 2 others 5 Quote Link to comment Share on other sites More sharing options...
19Cutlass94 Posted May 18, 2018 Report Share Posted May 18, 2018 Here’s that website I was talking about... https://supercar-engineering.com/sc2/index.php?cPath=4 I bought the input shaft seal from there and fit perfect. Not exactly listed for a 284, but I’m convinced some parts will fit. Just couldn’t prove it. Quote Link to comment Share on other sites More sharing options...
oldsconvert Posted May 24, 2018 Report Share Posted May 24, 2018 I did just find a guy who worked for GM and took a bunch of parts with him and supposedly has a bunch of getrag 284's and maybe some complete ones. I lost my 2nd gear on my 284 that I put in my 95 Olds convertible and have been looking for a 2nd gear or whole unit for 6 months. I reply when I know more Quote Link to comment Share on other sites More sharing options...
JoninMi Posted May 24, 2018 Report Share Posted May 24, 2018 I did just find a guy who worked for GM and took a bunch of parts with him and supposedly has a bunch of getrag 284's and maybe some complete ones. I lost my 2nd gear on my 284 that I put in my 95 Olds convertible and have been looking for a 2nd gear or whole unit for 6 months. I reply when I know more Message me their name, wonder if I know them!!!! Imp558 1 Quote Link to comment Share on other sites More sharing options...
crazyd Posted July 17, 2018 Author Report Share Posted July 17, 2018 Has anybody with a 284 ever gotten the acceleration shimmy? Like when you accelerate in 3rd, 4th, or 5th gear you get a shimmy from the drivetrain. It is either a side-to-side shimmy, or a wobble from either or both sides. Sometimes it's the axles, but other times... Quote Link to comment Share on other sites More sharing options...
White93z34 Posted July 19, 2018 Report Share Posted July 19, 2018 Honestly till you mentioned those issues i've never been aware of them the 284 in my car is probably fairly worn. I have absolutely no idea how many miles are on this unit, it leaks oil from places unknown, it sounds like a rock tumbler. But I can't say I'm aware of any shimmy issues. I'll have to pay more attention next time I'm out in it. Quote Link to comment Share on other sites More sharing options...
GTP091 Posted August 26, 2018 Report Share Posted August 26, 2018 The 92 parts car I bought has a busted 284 in it. It seems to be stuck in 3rd gear. Not sure if that’s the end of the line for this unit or not. The selector is either very stiff or extremely sloppy. Once I get it on the bench i can give it a to open the case. Certainly do not have the specialized tools for that though. Quote Link to comment Share on other sites More sharing options...
Nwebb2012 Posted September 28, 2019 Report Share Posted September 28, 2019 Has any progress been made on this task of Pandora’s box? I have a 92 GTP that has one and I’m tired of it pissing over a qt of fluid a week lol. Quote Link to comment Share on other sites More sharing options...
55trucker Posted September 28, 2019 Report Share Posted September 28, 2019 Where is the trans leaking from? The input & output shaft seals are still available. They are relatively common items. Quote Link to comment Share on other sites More sharing options...
Greg Z Posted February 4, 2022 Report Share Posted February 4, 2022 Has any progress been made in the last 4 years? I have a 92 Lumina that when I put it into 4th gear it grinds a little. Goes into gear and drives fine, but always grinds a little. Is there anything that can be done? Car has 94k on it and in great shape. I just typically skip 4th to maybe keep it from getting worse, which it has not in 3 yrs. Quote Link to comment Share on other sites More sharing options...
SuperBuick Posted September 29 Report Share Posted September 29 Posting here as this thread seems to have the best alignment to the info I have/am looking for. Pulled the speed sensor on my 284 today, and it looks like this. Is that a fatal sign or just normal wear and tear (it has 120k-ish miles). Given the speed sensor is a big magnet I’d expect it to collect errant metal shavings - the magnet on the drain plug for the transmission barely had any metal at all on it. Quote Link to comment Share on other sites More sharing options...
SuperBuick Posted September 29 Report Share Posted September 29 This is what the speed sensor looks like after I wiped it off: Quote Link to comment Share on other sites More sharing options...
White93z34 Posted September 29 Report Share Posted September 29 Wow, that seems excessive. I would say thats probably "not normal" If it were me i'd stick a strong neodymium magnet on the drainplug. Amanita 1 Quote Link to comment Share on other sites More sharing options...
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