07-07-2005, 10:44 PM
Hehe.... rebuilt my spare gearbox this evening out at dad's shop ( :thumbup: for dad) with some goodies 
First you find yourself a spare gearbox in need of a rebuild - this one had some 3rd gear "issues" or so the seller said. Perfect.
Transmission rebuild hobby kit (name that movie reference). 3/4 synchro set, new bearings and seals.
![[Image: 1-77-22293-l-bwHjtUdEJWoL9XpAY9QXkw.jpg]](http://is.rely.net/1-77-22293-l-bwHjtUdEJWoL9XpAY9QXkw.jpg)
My LSD... it started out as a GSR diff, then I sent it to OPM Autosports in atlanta to have it build into a LSD. The metal blocks in there house clutch packs.... YOu're probably thinking "why not just get a Phantom Grip". Well those things suck and put all the wear on the spider gears, and dont even work that well in the first place. This setup is actually properly designed and has real clutch packs. More on that one later.....
![[Image: 1-77-22291-l-JbkxzEapGkNft5oBwSRvhg.jpg]](http://is.rely.net/1-77-22291-l-JbkxzEapGkNft5oBwSRvhg.jpg)
![[Image: 1-77-22292-l-KpC7S9wgDldmn72GDbA.jpg]](http://is.rely.net/1-77-22292-l-KpC7S9wgDldmn72GDbA.jpg)
Hmm... and whats this too....
![[Image: 1-77-22294-l-LuLjvUDP2rjzdlkPoPut3Q.jpg]](http://is.rely.net/1-77-22294-l-LuLjvUDP2rjzdlkPoPut3Q.jpg)
Bling!!!!
![[Image: 1-77-22295-l-o9wImpJCLt0YJeoOw5ECg.jpg]](http://is.rely.net/1-77-22295-l-o9wImpJCLt0YJeoOw5ECg.jpg)
Neither of us could read "JDM". I just assumed it meant "Use BFH here"
![[Image: 1-77-22296-l-Vfdxsyn9F6g3vu6gj7wA.jpg]](http://is.rely.net/1-77-22296-l-Vfdxsyn9F6g3vu6gj7wA.jpg)
Ah, the gaijin version. We didnt read that one either. BFH here I come!
![[Image: 1-77-22297-l-dHDFDIuT12flENymzYiWw.jpg]](http://is.rely.net/1-77-22297-l-dHDFDIuT12flENymzYiWw.jpg)
Final drive comes with a ring gear, a countershaft to match it (thats your pinion) and a different 1st gear - I think something to do with clerances, as 1st is right on top of the countershaft/ring gear mesh. Pics for reference (not mine)
![[Image: ats2.jpg]](http://www.sandmracing.com/images/s/ats/ats2.jpg)
![[Image: shaftandstuff.jpg]](http://www.sandmracing.com/images/s/ats/shaftandstuff.jpg)
Ok, now on to the fun.......
This thing is entirely too put together. Fuck all that.
![[Image: 1-77-22298-l-uBKvyUOXTIm7LwqvSjA.jpg]](http://is.rely.net/1-77-22298-l-uBKvyUOXTIm7LwqvSjA.jpg)
This is much better
![[Image: 1-77-22299-l-VGjMMi3iD6d436KOK1LoA.jpg]](http://is.rely.net/1-77-22299-l-VGjMMi3iD6d436KOK1LoA.jpg)
Countershaft on the left, input shaft on the right, shift linkage (sorry... honda term is "change holder" on there. Once you unbolt the shift linkage from the housing everything just pulls out.
Pic for reference (not mine)
![[Image: tranny2.jpg]](http://www.sandmracing.com/images/s/ats/tranny2.jpg)
New ring gear on the diff (this was our snag of the night)
![[Image: 1-77-22300-l-KBHGxW4JtWlGAVserpZEg.jpg]](http://is.rely.net/1-77-22300-l-KBHGxW4JtWlGAVserpZEg.jpg)
From there it was just a matter of pulling everything off the input shaft and swapping out the 3/4 sychro set and ATS 1st gear... and pulling everything off the countershaft to put on the ATS countershaft. I was suprised how little was pressed on - only needed a press for one spot on each shaft, everything else just slides right on. Pretty easy stuff, as long as you stay organized and put things back on in the right order/orientation as they came off.
Dad pressing bearings back on the countershaft
![[Image: 1-77-22301-l-td1ikb1GAXqG3JCiqb44LQ.jpg]](http://is.rely.net/1-77-22301-l-td1ikb1GAXqG3JCiqb44LQ.jpg)
![[Image: 1-77-22302-l-txwE1j5RQPi88oW4edY6w.jpg]](http://is.rely.net/1-77-22302-l-txwE1j5RQPi88oW4edY6w.jpg)
Assembled
![[Image: 1-77-22303-l-MGNs23zEXEdVahsYjnSrrg.jpg]](http://is.rely.net/1-77-22303-l-MGNs23zEXEdVahsYjnSrrg.jpg)
We dont need no ffing torque specs!
![[Image: 1-77-22304-l-ANhuixlYKJlcl2Sfmckbbg.jpg]](http://is.rely.net/1-77-22304-l-ANhuixlYKJlcl2Sfmckbbg.jpg)
And then it went back together the reverse of assembly.... slide the change holder assembly back on the shafts and drop it in the case. Bolt case down, give a little love to the snap ring and you're disco.
The offending 3rd gear synchro hub - the brass synchro rings were fine, but the hub on this was all fuggered. Oh well.
![[Image: 1-77-22306-l-FWiazVCnV8pbiuYs9R1amA.jpg]](http://is.rely.net/1-77-22306-l-FWiazVCnV8pbiuYs9R1amA.jpg)
![[Image: 1-77-22307-l-9oWvCUJuiutwwZdaqA2A.jpg]](http://is.rely.net/1-77-22307-l-9oWvCUJuiutwwZdaqA2A.jpg)
![[Image: 1-77-22308-l-DdYLrEDsJ3OoUKWqMrT5pA.jpg]](http://is.rely.net/1-77-22308-l-DdYLrEDsJ3OoUKWqMrT5pA.jpg)
![[Image: 1-77-22309-l-sAihvLkdSawCqoxg8kgzGw.jpg]](http://is.rely.net/1-77-22309-l-sAihvLkdSawCqoxg8kgzGw.jpg)
I do have a problem with the diff though and I will be calling OPM in the morning - one of the bolt holes that holds the ring gear to the diff is chewed up and I couldnt put the bolt in. The problem is that its a left hand, very fine thread - 10x1.0 mm - Mcmaster-carr has taps in that size, at $80 each..... I'll be pulling the case apart to do something with the diff I guess. Maybe stuff it with flaming poop and launch it through OPM's front door.
So, thats that... for now.
First you find yourself a spare gearbox in need of a rebuild - this one had some 3rd gear "issues" or so the seller said. Perfect.
Transmission rebuild hobby kit (name that movie reference). 3/4 synchro set, new bearings and seals.
My LSD... it started out as a GSR diff, then I sent it to OPM Autosports in atlanta to have it build into a LSD. The metal blocks in there house clutch packs.... YOu're probably thinking "why not just get a Phantom Grip". Well those things suck and put all the wear on the spider gears, and dont even work that well in the first place. This setup is actually properly designed and has real clutch packs. More on that one later.....
Hmm... and whats this too....
Bling!!!!
Neither of us could read "JDM". I just assumed it meant "Use BFH here"
Ah, the gaijin version. We didnt read that one either. BFH here I come!
Final drive comes with a ring gear, a countershaft to match it (thats your pinion) and a different 1st gear - I think something to do with clerances, as 1st is right on top of the countershaft/ring gear mesh. Pics for reference (not mine)
Ok, now on to the fun.......
This thing is entirely too put together. Fuck all that.
This is much better
Countershaft on the left, input shaft on the right, shift linkage (sorry... honda term is "change holder" on there. Once you unbolt the shift linkage from the housing everything just pulls out.
Pic for reference (not mine)
New ring gear on the diff (this was our snag of the night)
From there it was just a matter of pulling everything off the input shaft and swapping out the 3/4 sychro set and ATS 1st gear... and pulling everything off the countershaft to put on the ATS countershaft. I was suprised how little was pressed on - only needed a press for one spot on each shaft, everything else just slides right on. Pretty easy stuff, as long as you stay organized and put things back on in the right order/orientation as they came off.
Dad pressing bearings back on the countershaft
Assembled
We dont need no ffing torque specs!
And then it went back together the reverse of assembly.... slide the change holder assembly back on the shafts and drop it in the case. Bolt case down, give a little love to the snap ring and you're disco.
The offending 3rd gear synchro hub - the brass synchro rings were fine, but the hub on this was all fuggered. Oh well.
I do have a problem with the diff though and I will be calling OPM in the morning - one of the bolt holes that holds the ring gear to the diff is chewed up and I couldnt put the bolt in. The problem is that its a left hand, very fine thread - 10x1.0 mm - Mcmaster-carr has taps in that size, at $80 each..... I'll be pulling the case apart to do something with the diff I guess. Maybe stuff it with flaming poop and launch it through OPM's front door.
So, thats that... for now.
Which is fine, it gives me all weekend to get drunk and angry about it for when he calls me back monday.