TR4/4A Looks like I need a new ring and pinion...

[Marvin Gruber]

3.70 gear set, in box for years. $100 and shipping
Marv

 

[TR3driver]

Any chance you've got a 3.45 set?

 

[Sarastro]

Randall, Marvin: PMs sent.

Other guys: really fascinating observations. I like the idea of trying it as is and seeing what happens--appeals to the scientist in me. But, the goal for this restoration is to have a mechanically solid car, and that means not keeping anything that is questionable. So, at this point, I think the rusty gears will go. Just a matter of what to replace them with.

 

[CJD]

Randall, Marvin: PMs sent.

Other guys: really fascinating observations. I like the idea of trying it as is and seeing what happens--appeals to the scientist in me. But, the goal for this restoration is to have a mechanically solid car, and that means not keeping anything that is questionable. So, at this point, I think the rusty gears will go. Just a matter of what to replace them with.

Bravo, Steve...you came to the right decision. I spend most of my time repairing other PO's science projects.

 

[Marvin Gruber]

Randall,
No 3.45 that I know of. There are several diffs here that have not been inspected. There is a solid axle with a 54 inch wide lenght I have been tempted to pull and see what they are. Has 10 " drums.
Marv

 

[sp53]

I am for doing a job right also; my dad insisted that anything worth doing is doing right. I think water got in and probably made a mess of everything in outer bearing land too. You might need a whole unit, but I am no expert. However, I believe you are talking to the right guys; it is just my rear axle disassembly experience is not that great.

 

[Sarastro]

Well, I made a case spreader and removed the differential. The carrier bearings were about as bad as I expected, maybe even a bit worse. I haven't removed the pinion yet, but I don't expect its bearings to be any better. Clearly, this will be a full-up rebuild. Sigh.

The only good side of this is its effect on those who get lazy and don't check or replace their diff oil. This is what happens.

 

[CJD]

Wow, nice spreader. I’ve rebuilt a couple dozen diffs, but never used a spreader...now you have me wondering if I should have made one years ago?!?

 

[sp53]

Wow so they really do come apart that way. I remember telling my neighbor who was a 4 wheel drive guy that they came apart that way because I saw it in a book, and he gave me that look—you know the LOOK!-- Yeh that look.

 

[TR3driver]

Yup, that's how they come apart. But I'm with John, don need no steekin spreader!

 

[Sarastro]

Hmmmm...just as well that I made the spreader. I don't have enough crowbars....