Who has the best price?
3rd gear going out, how much and where?
- Thread starter Toolman
- Start date
Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
Yamaha V6
SHO Enthusiast
Contact Mark N, Josh T, or SHO Shop for info on replacement gears Tim. AFAIK, they are the only ones who would have info on new gears. Otherwise, you out of luck I think - they've been Ford DC'd.
drivinhard
New Member
Unless you get lucky, you won't be able to get a new one. Will have to get a used box.
3rd is on the main input shaft right? Any way to strengthen these things? I do not want to be replacing one every few months. Any way to get a forged or billet one? It seems like it would be worth the additional dough up front for the less work later. Were you able to tell it was on its way out Mark? One more question, is it okay to drive it and just skip third for now?
drivinhard
New Member
If I was you I wouldn't drive it till I fixed it. I have yet to break one, but the guys who have, have usually sheered off a couple of teeth off 3rd gear. You don't want to ruin the rest of the tranny by debris flying around.
3rd gear is on the main shaft, it is engaged by the input shaft. Usually the input shaft doesn't let go with it, but I think at least 1 person has sheered some teeth off 3rd with damage to the input shaft. Either way, you'll want to inspect it.
Getting a 3rd gear made with some high zoot material is an option, although it will probably be expensive due to the lack of volume. To get any buying power we'd have to get a lot of us together and approach a manufacturer. With proper heath treating and some voo-doo material, you could probably increase the strength. It's a very narrow gear though.
3rd gear is on the main shaft, it is engaged by the input shaft. Usually the input shaft doesn't let go with it, but I think at least 1 person has sheered some teeth off 3rd with damage to the input shaft. Either way, you'll want to inspect it.
Getting a 3rd gear made with some high zoot material is an option, although it will probably be expensive due to the lack of volume. To get any buying power we'd have to get a lot of us together and approach a manufacturer. With proper heath treating and some voo-doo material, you could probably increase the strength. It's a very narrow gear though.
SHO--ripper
928 Euro
I've got a friend who has blown 3rd 2 times and is very close to his 3rd time 
. He is thinking of ditching his car. I'm sure he'd be down with buying 3rd gear with that special zoot material thumbs_u
. He is thinking of ditching his car. I'm sure he'd be down with buying 3rd gear with that special zoot material thumbs_u
sdpatt
Sr. SHO Engr.
Here's what you are looking into.
As installed in the transaxle
From left to right: reverse idler gear, input shaft, main shaft, fifth gear shaft and the differential in the back. The input shaft is solid. The gears on the main shaft are constantly in mesh with the input shaft and only the chosen gear is locked to the main shaft by the synchronizer. Why third breaks before the others, I wonder.
As installed in the transaxle
From left to right: reverse idler gear, input shaft, main shaft, fifth gear shaft and the differential in the back. The input shaft is solid. The gears on the main shaft are constantly in mesh with the input shaft and only the chosen gear is locked to the main shaft by the synchronizer. Why third breaks before the others, I wonder.
drivinhard
New Member
If you compare all the gears together, 3rd is the most narrow.
Ransom has cryo'd his, but I wonder how that process works on something that's already been through a bazillion ambient-200F+ heat cycles. I'm not an expert on cryo though...can't hurt for a few bucks.
I believe panama pat also rip'd up 2nd gear. It's mostly the big torque guys, I'd say below 275 crank ft/lbs, you are pretty safe. These things were never designed to handle 375+ ft/lbs of torque. It's amazing they don't tear up more than they do.
Fingers crossed here, see if I can sneak another season of my box with no breakage
<small>[ March 03, 2003, 04:52 PM: Message edited by: drivinhard ]</small>
Ransom has cryo'd his, but I wonder how that process works on something that's already been through a bazillion ambient-200F+ heat cycles. I'm not an expert on cryo though...can't hurt for a few bucks.
I believe panama pat also rip'd up 2nd gear. It's mostly the big torque guys, I'd say below 275 crank ft/lbs, you are pretty safe. These things were never designed to handle 375+ ft/lbs of torque. It's amazing they don't tear up more than they do.
Fingers crossed here, see if I can sneak another season of my box with no breakage
<small>[ March 03, 2003, 04:52 PM: Message edited by: drivinhard ]</small>
Machspeed
Former 1991+ owner
Since they discountinued 3rd, would there be any interest by sho companies (SHOnut, shoshop, ipt, etc...) to approach a company to make a large quanity of 3rd gears and then they could sell it to sho owners? It would be like a company group buy. Cuz if people are gonna start losing 3rd, there will be a demand, and i was thinking if it was so expensive and wed have to have a large group of people, maybe some sho places can make a few bucks and help keep the sho on the road...Any input on this? Tom g?
Similar threads
