3rd gear grinds RC

[Srt10t]

Hey guys I'm having an issue going from 2nd to 3rd gear. In 3rd gear it grinds. Have stock hurst shifter maybe thinking of changing it

 

[505 V10]

You have something bad inside the transmission. A shifter change will not cure your issue. Bad synchro maybe. Would have to see inside. Did this just start. Have seen where 90 wt. was put in a trans that called for ATF and the trans would grind on gear changes.

 

[Srt10t]

Yea I was hoping it wasn't internal but yes just started happening

Also only grinds in 3rd gear

 

[VPRPWRD]

Most likely internal transmission. Better to fix it now before causing more damage.

 

[madmanadam]

Had same issue went to the B&M shifter and RP ATF. no issues so far.

 

[Srt10t]

Had same issue went to the B&M shifter and RP ATF. no issues so far.

How bad was it grinding?

 

[madmanadam]

Grinds as long as keep trying to get in gear. I would double clutch and push and then it would go in. couple weeks ago I did 19 1/4 mile runs and missed gear twice, my fault.
Its all about timing. I have also removed the spring that hold it from going into reverse.
I replace my clutch and hyd at 34,000.

 

[Srt10t]

Yea I'm thinking it's the synchro will still when it gets pulled

Yea it will grind and if I throw it hard into gear it will go

 

[505 V10]

Grinds as long as keep trying to get in gear. I would double clutch and push and then it would go in. couple weeks ago I did 19 1/4 mile runs and missed gear twice, my fault.
Its all about timing. I have also removed the spring that hold it from going into reverse.
I replace my clutch and hyd at 34,000.

By double clutching you eliminated the need for the synchro. Heavy Class 8 truck transmissions don't have any synchros, so proper procedure is to double clutch every shift. Our transmissions however do have synchros and the grinding of gears on a shift is an indicator of trouble inside the box.

 

[NukeGM/Ford]

By double clutching you eliminated the need for the synchro. Heavy Class 8 truck transmissions don't have any synchros, so proper procedure is to double clutch every shift. Our transmissions however do have synchros and the grinding of gears on a shift is an indicator of trouble inside the box.

real truck drivers don't even use the clutch after you let it out in low gear….

 

[505 V10]

real truck drivers don't even use the clutch after you let it out in low gear….

Agreed. Had Class 1 Lic. long before CDL A was even thought about (1974).

That being said, any transmission mfr. training literature/video has the driver double clutching. I have seen nitwits THINK they can drive w/o the clutch and grind every gear up and down.

 

[ZCx]

real truck drivers don't even use the clutch after you let it out in low gear….

:rock::rock::rock:

hell yeah:rock::rock::rock:

or do i use the clutch on a motorcycle:rock:

 

[NukeGM/Ford]

Agreed. Had Class 1 Lic. long before CDL A was even thought about (1974).

That being said, any transmission mfr. training literature/video has the driver double clutching. I have seen nitwits THINK they can drive w/o the clutch and grind every gear up and down.

i was running MO-FL-MO with my uncle right after high school, then went in the army to "learn" to be a 64Clutch (motor transport operator). thats all they taught was D-clutching. of course some of the people we had in class couldn't "hear" the motor to save their lives. we had one guy who had a PH D. in something, enlisted so uncle sam would pay his college loans. he said he picked truck driving cause it looked easy, he ended up washing out and having to become a grunt. Later on they changed the truck driver MOS to 88Mushbox cause all the new stuff being built was turning into autos