There is a possibility my original 4-speed may need a rebuild. It is my understanding that rebuild kits for the type "A" transmission are NLA, at least in the US. Some questions for our talented membership:

Are any of the components of the "B" kit usable in the "A" transmission?

Has anyone identified susbstitute components - bearings, bushings, synchros, ...etc.? Roadster parts?

Any thoughts on where else to search for a type "A" rebuild kit?

I really want to keep my driveline orignal. Swappng to a type "B" transmission is undesireable due to the potential for damage to the console and underlying body to accomodate the change in the shift rod location.

I'm open and welcoming to any comments, suggestions and recommendations.

Thanks,

Jim

EuroDat has written a bunch about rebuilding transmissions. Here's one link from Tech Articles. The Resources area is really hard to get through, can't figure out where things are. Really just need a long clean list of every title in the area. Had to use Google to find it. There might be more out there. Search EuroDat's name.

1 hour ago, jfa.series1 said:

There is a possibility my original 4-speed may need a rebuild. It is my understanding that rebuild kits for the type "A" transmission are NLA, at least in the US. Some questions for our talented membership:

Are any of the components of the "B" kit usable in the "A" transmission?

Has anyone identified susbstitute components - bearings, bushings, synchros, ...etc.? Roadster parts?

Any thoughts on where else to search for a type "A" rebuild kit?

I really want to keep my driveline orignal. Swappng to a type "B" transmission is undesireable due to the potential for damage to the console and underlying body to accomodate the change in the shift rod location.

I'm open and welcoming to any comments, suggestions and recommendations.

Thanks,

Jim

@jfa.series1 I've had good luck getting all the parts through amayama, partsouq or nissan parts deal. You'll have to assemble the kit yourself, that's what I did.

Edited yesterday at 12:17 AM1 day by SpeedRoo

If the problem is synchros grinding it might be worth a shot to try Pennzoil Synchromesh. If it's bearings that another story. If it's both try the Synchromesh to see if it stops the grinding and put in new bearings if you can't find the synchros. Some thoughts. You did say possibility.

In our experience it was generally bearings - mainly the one under the reverse idler - and not usually gears or baulk rings - except maybe the reverse idler. Many of the same bearings were used in the "B" transmissions. If you replace baulk rings (which I would avoid unless there's obvious damage to them), lap them to make sure they move freely when cold... Ask me how I know (and how cold does it get in Arizona?).

Edited yesterday at 01:25 AM1 day by cgsheen1

2 hours ago, SpeedRoo said:

@jfa.series1 I've had good luck getting all the parts through amayama, partsouq or nissan parts deal. You'll have to assemble the kit yourself, that's what I did.

I’ve had amazing success with Amayama. Once you have found the correct/ superceded part number you basically type it in. If there is a chance they can find it they search first and then request payment. Shipping is amazingly fast.

Many thanks for all the constructive comments and suggestions. I've been running the AC Delco Friction Modified transmission lube for some time, great product and it has provided a significant improvement in shifting. I suspect I have a bearing problem, primarily occuring on cold start situations. Anyway, I'll move forward on tracking down components. With the recent change to the de minimus rule, it looks like most offshore shipments are now on hold pending guidance from the feds. ☹️

5 hours ago, jfa.series1 said:

With the recent change to the de minimus rule, it looks like most offshore shipments are now on hold pending guidance from the feds. ☹️

I have run into this too. Was trying to buy two BMW fuel injectors out of Latvia. Couldn't because of all the unknowns. Looking to buy something out of the UK and sent them an email to see if they'll ship to the US. We'll see what they say...

I just purchased some parts from UAE and Spain, pre-August 29 tariff effective date. Speedy delivery and low shipping costs via ebay. For obscure parts, identify a ebay seller based overseas who have extensive listings and ask if they have (or can locate) the parts.

Keith