Replaced clutch and tob. possible input shaft noise?? need help
08-07-2014, 03:14 PM
#27
Senior Member
Thread Starter
I need confirmation that the 4.05 bolts right up to the lnf. Also I have no lsd (g85) and want to know if I buy a 4.05 with lsd does that bolt up to the lnf with absolutely no modifications.
10-29-2014, 02:35 PM
#32
Senior Member
Thread Starter
So I got a 3.82 on the way but I think I screwed up. I ended up buying a new tob and flywheel bolts but I dont think I needed them. When swapping a trans but using the same clutch, does the clutch and fly come off or was ordering these parts a waste of money?
10-29-2014, 02:50 PM
#33
The pressure plate is bolted to the flywheel and the friction disk is sandwiched between them. The flywheel is bolted to the crankshaft. Therefore, when you pull the tranny, the clutch assembly will stay with the engine. So if you aren't replacing the clutch then yes you wasted the money on the flywheel bolts.
The TOB will be attached to the transmission. You may want to put a new one on the "new" tranny just because.
The TOB will be attached to the transmission. You may want to put a new one on the "new" tranny just because.
10-29-2014, 03:22 PM
#36
10-30-2014, 11:58 AM
#40
Probably kinda high considering you're giving them the trans, but it's a lot of work. I'd think 4-6 shop hours.
Clutch pipe: up to you. If you just got a new one you might be ok with that one, but last thing you want is to put it together to realize you need to take it apart again because of a leak. It's just like the TOB. At $15 it's pretty cheap insurance.
Clutch pipe: up to you. If you just got a new one you might be ok with that one, but last thing you want is to put it together to realize you need to take it apart again because of a leak. It's just like the TOB. At $15 it's pretty cheap insurance.
12-04-2014, 08:16 PM
#42
Probably kinda high considering you're giving them the trans, but it's a lot of work. I'd think 4-6 shop hours.
Clutch pipe: up to you. If you just got a new one you might be ok with that one, but last thing you want is to put it together to realize you need to take it apart again because of a leak. It's just like the TOB. At $15 it's pretty cheap insurance.
Clutch pipe: up to you. If you just got a new one you might be ok with that one, but last thing you want is to put it together to realize you need to take it apart again because of a leak. It's just like the TOB. At $15 it's pretty cheap insurance.
12-04-2014, 09:28 PM
#43
I know of no bearing inside the F35 transmission that sells for ten dollars. They are 101 and 155 for the input shaft, front and rear. I just had an LNF with bad bearings in the trans throughout and the trans fluid was black. I think the folks that work on the car last put in the wrong fluid. That wrecks bearings in this transmission, it would appear.
Some transmissions take ATF as the fluid. The Getrag F23 is that way., takes ATF, This F35 LSJ/LNF trans does not. For the ZZP turbo F23 conversions, ZZP put in LNF trans fluid and when I service those cars I do the same. Have not had any issues with that.
I have about 40 k miles on each of the F35 trans in my weaksos TVS Redline. The first one I pulled I sold to G85blackSS (Paul) in NY and as far as I know the trans is still working.
My 4.45 at 40 k miles ( 80 k total on the car now) is fine, but I may pull it out this winter and have a look at it just to see. That said, 4.45 gear trans make more gear noise there is no doubt.
I have on occasion missed shifts on the track with this transmission. Driver mod required. SO if the trans has issues, I put it down to me.
Some transmissions take ATF as the fluid. The Getrag F23 is that way., takes ATF, This F35 LSJ/LNF trans does not. For the ZZP turbo F23 conversions, ZZP put in LNF trans fluid and when I service those cars I do the same. Have not had any issues with that.
I have about 40 k miles on each of the F35 trans in my weaksos TVS Redline. The first one I pulled I sold to G85blackSS (Paul) in NY and as far as I know the trans is still working.
My 4.45 at 40 k miles ( 80 k total on the car now) is fine, but I may pull it out this winter and have a look at it just to see. That said, 4.45 gear trans make more gear noise there is no doubt.
I have on occasion missed shifts on the track with this transmission. Driver mod required. SO if the trans has issues, I put it down to me.
12-04-2014, 10:19 PM
#45
It requires a complete disassemble and essential parts like crush sleeves and peen nuts, axle seals and sealant cannot be avoided. 500 in labor and 300 or so in essential parts plus the outrageously priced bearings, one of which was on national back order for 18 months and I had to dismantle new transmissions to harvest that bearing at that time.
I also sourced some diff bearings from an alternative source and it all looked good until I found the inside diameter of the bearing race was too small. Tilt.
This whole trans deal is not easy and the road is littered with false expectations of "built" transmissions and some serious driver and tech mods needed.
From not rev matching, to power hop with stock mounts, to wrong transmission fluid, its a pita deal. I am told by a forum member on here that ZZP are not doing the F40 conversion anymore. I dont know if thats true or not, but the SAAB guys on the forums sure complain about the F40 and while there are many around, the one ZZP uses for their conversion may be in short supply, unless the boneyards fill up with them
"drive it like you want to keep it for ever" rather than "drive it like you stole it" seems to be the watchword here.
I also sourced some diff bearings from an alternative source and it all looked good until I found the inside diameter of the bearing race was too small. Tilt.
This whole trans deal is not easy and the road is littered with false expectations of "built" transmissions and some serious driver and tech mods needed.
From not rev matching, to power hop with stock mounts, to wrong transmission fluid, its a pita deal. I am told by a forum member on here that ZZP are not doing the F40 conversion anymore. I dont know if thats true or not, but the SAAB guys on the forums sure complain about the F40 and while there are many around, the one ZZP uses for their conversion may be in short supply, unless the boneyards fill up with them
"drive it like you want to keep it for ever" rather than "drive it like you stole it" seems to be the watchword here.
12-04-2014, 10:29 PM
#46
As the bearings fail, there is increased end float in the gear set. When rebuilding, if we remove shims to reset end float there is a risk that the gear mesh will be slightly different and noise results due to existing wear patterns. But when replacing bearings, as expensive as they are, its hard to say to the customer " you need new gears throughout" Just second gear assembly is 700 dollars new.
12-05-2014, 12:18 AM
#48
It requires a complete disassemble and essential parts like crush sleeves and peen nuts, axle seals and sealant cannot be avoided. 500 in labor and 300 or so in essential parts plus the outrageously priced bearings, one of which was on national back order for 18 months and I had to dismantle new transmissions to harvest that bearing at that time.
I also sourced some diff bearings from an alternative source and it all looked good until I found the inside diameter of the bearing race was too small. Tilt.
This whole trans deal is not easy and the road is littered with false expectations of "built" transmissions and some serious driver and tech mods needed.
From not rev matching, to power hop with stock mounts, to wrong transmission fluid, its a pita deal. I am told by a forum member on here that ZZP are not doing the F40 conversion anymore. I dont know if thats true or not, but the SAAB guys on the forums sure complain about the F40 and while there are many around, the one ZZP uses for their conversion may be in short supply, unless the boneyards fill up with them
"drive it like you want to keep it for ever" rather than "drive it like you stole it" seems to be the watchword here.
I also sourced some diff bearings from an alternative source and it all looked good until I found the inside diameter of the bearing race was too small. Tilt.
This whole trans deal is not easy and the road is littered with false expectations of "built" transmissions and some serious driver and tech mods needed.
From not rev matching, to power hop with stock mounts, to wrong transmission fluid, its a pita deal. I am told by a forum member on here that ZZP are not doing the F40 conversion anymore. I dont know if thats true or not, but the SAAB guys on the forums sure complain about the F40 and while there are many around, the one ZZP uses for their conversion may be in short supply, unless the boneyards fill up with them
"drive it like you want to keep it for ever" rather than "drive it like you stole it" seems to be the watchword here.
This is another reason why I am parting ways with this car.
12-05-2014, 12:53 AM
#49
Just didn't see this happening with ~20k miles on the trans......with fresh oem fluid, rev matching every shift, running mounts eliminating wheelhop, point being not everyone is an idiot and while I'm far from being considered a great driver, this issue typically from my little research seems to be a high mileage problem on other platforms anyways. Thought this time around I'd catch a break but this cobalt is just full of surprises.