ZF5 Synchro Replacement, Southern New Mexico
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Cross-Country
Joined: Nov 2022
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ZF5 Synchro Replacement, Southern New Mexico
Anybody know where I can get the synchronizers replaced in southern New Mexico? I'm in the Dona Ana county area.
The synchros on 1, 3, and reverse are heavenly worn and 2 is completely worn. The shops I've asked either want to replace the transmission or can't do it.
The synchros on 1, 3, and reverse are heavenly worn and 2 is completely worn. The shops I've asked either want to replace the transmission or can't do it.
Lead Driver
Joined: Apr 2016
Posts: 7,210
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From: Bahstun
Those are going to require a complete tear down of the main shaft that equals a complete rebuild. Did that my self before during covid to save a grand.
2500 for a rebuilt one plus shipping was more than my budget at the time.
Hope others chime in with a shop for you, only been there once like 26 years ago
2500 for a rebuilt one plus shipping was more than my budget at the time.
Hope others chime in with a shop for you, only been there once like 26 years ago
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Cross-Country
Joined: Nov 2022
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I might have to do it myself or pony up for a new one.
Lead Driver
Joined: Sep 2002
Posts: 9,548
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From: North Texas
Start with the basics. Verify no air in the hydraulics. Fresh pedal box bushings and the guy on the swing arm.
Going into reverse is a pain. Clutch in, shift to fifth, keep clutch down, drop to neutral, keep clutch down, then drop into reverse. Works way easier. Even with crapped out dogs on the slider and gear.
I cannot see how first is worn unless trying to go from R to 1 over and over moving slowly. Possible, but not common.
Did the shop split the case and actually measure syncro ring clearance? My guess never have driven one and do not know how to shift them. TOTALLY different than small automobile manual boxes and does NOT shift fast.
Going into reverse is a pain. Clutch in, shift to fifth, keep clutch down, drop to neutral, keep clutch down, then drop into reverse. Works way easier. Even with crapped out dogs on the slider and gear.
I cannot see how first is worn unless trying to go from R to 1 over and over moving slowly. Possible, but not common.
Did the shop split the case and actually measure syncro ring clearance? My guess never have driven one and do not know how to shift them. TOTALLY different than small automobile manual boxes and does NOT shift fast.
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Logistics Pro
Joined: Mar 2007
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From: knoxville, tn
Start with the basics. Verify no air in the hydraulics. Fresh pedal box bushings and the guy on the swing arm.
Going into reverse is a pain. Clutch in, shift to fifth, keep clutch down, drop to neutral, keep clutch down, then drop into reverse. Works way easier. Even with crapped out dogs on the slider and gear.
I cannot see how first is worn unless trying to go from R to 1 over and over moving slowly. Possible, but not common.
Did the shop split the case and actually measure syncro ring clearance? My guess never have driven one and do not know how to shift them. TOTALLY different than small automobile manual boxes and does NOT shift fast.
Going into reverse is a pain. Clutch in, shift to fifth, keep clutch down, drop to neutral, keep clutch down, then drop into reverse. Works way easier. Even with crapped out dogs on the slider and gear.
I cannot see how first is worn unless trying to go from R to 1 over and over moving slowly. Possible, but not common.
Did the shop split the case and actually measure syncro ring clearance? My guess never have driven one and do not know how to shift them. TOTALLY different than small automobile manual boxes and does NOT shift fast.
agreed. They might be expecting to shift like a Miata, and it just won’t be like that. Pedal box bushing and hiem joint first then see how it does. It might also need a fluid change. If you go that route, it takes a Dex/Merc ATF. These things are getting several miles on them so rebuilds are more common but don’t jump to it until you get the basics sorted out.
what kind of clutch did they put in it?
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Laughing Gas
Joined: Aug 2016
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From: Albuquerque and Colorado
agreed. They might be expecting to shift like a Miata, and it just won’t be like that. Pedal box bushing and hiem joint first then see how it does. It might also need a fluid change. If you go that route, it takes a Dex/Merc ATF. These things are getting several miles on them so rebuilds are more common but don’t jump to it until you get the basics sorted out.
what kind of clutch did they put in it?
what kind of clutch did they put in it?
Tuned
Joined: Sep 2015
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From: Vermont
Thread Starter
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Cross-Country
Joined: Nov 2022
Posts: 52
Likes: 18
Start with the basics. Verify no air in the hydraulics. Fresh pedal box bushings and the guy on the swing arm.
Going into reverse is a pain. Clutch in, shift to fifth, keep clutch down, drop to neutral, keep clutch down, then drop into reverse. Works way easier. Even with crapped out dogs on the slider and gear.
I cannot see how first is worn unless trying to go from R to 1 over and over moving slowly. Possible, but not common.
Did the shop split the case and actually measure syncro ring clearance? My guess never have driven one and do not know how to shift them. TOTALLY different than small automobile manual boxes and does NOT shift fast.
Going into reverse is a pain. Clutch in, shift to fifth, keep clutch down, drop to neutral, keep clutch down, then drop into reverse. Works way easier. Even with crapped out dogs on the slider and gear.
I cannot see how first is worn unless trying to go from R to 1 over and over moving slowly. Possible, but not common.
Did the shop split the case and actually measure syncro ring clearance? My guess never have driven one and do not know how to shift them. TOTALLY different than small automobile manual boxes and does NOT shift fast.
The truck had the heim joint mod when I bought it. It wasn't secured properly so the clutch wouldn't fully engage when shifting. I'm guessing this led to the synchros getting worn out.
Last edited by 1997.7.3.PSD; Jan 30, 2026 at 05:31 PM.
Thread Starter
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Cross-Country
Joined: Nov 2022
Posts: 52
Likes: 18
agreed. They might be expecting to shift like a Miata, and it just won’t be like that. Pedal box bushing and hiem joint first then see how it does. It might also need a fluid change. If you go that route, it takes a Dex/Merc ATF. These things are getting several miles on them so rebuilds are more common but don’t jump to it until you get the basics sorted out.
what kind of clutch did they put in it?
what kind of clutch did they put in it?
Laughing Gas
Joined: Apr 2020
Posts: 1,231
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From: NT, See you in the
LOL @Hit Man X I was going to call you to this thread but you're already on top of it, you saint you.