If it is a 350 it cannot be an early 1960s crawler. The 350 series began around 1966. A six-way blade is an inside blade. An outside blade it supported by a big arm on each side of the crawler -and the arms mount on the outside of the tracks. The arms that attach to the 6-way blade are inside of the tracks. Thus the terms "inside" and "outside." In regard to your question if it being a 350 "changes anything", well yeah, it's a different machine. Generally speaking a 350 is worth more and is usually more rugged - but it got more rugged and heavier as time went on. 1010 crawlers - when used very hard- tend to break steering clutch housings, crack transmisson cases, side-frames, had a weak center bearing in the reverser if so equipped,etc. When the first 350 came out, it had the same weaknesses. But, replacement parts got beefed up - including stonger steering clutch housings and trans. cases and side frames - and these parts also were used for replacement in the 1010s. The hydraulic reverser also got beefed up.
Along the way, 350 got an updated drive mechanism to connect the engine to the reverser - and it was WORSE than the 1010 and early 350 type. 350s also went though various changes to the method of attaching the crossbar to the two track-frames. From my point of view, they were all lousy. I think the original 1010 setup was the best. Early 350s had the crossbar mounted solid to the track-frames. They would crack, break, bolts would pull out, etc. So, many got welded together - what a mess. Later 350s used a floating system where the trackframes attached by floating dowells. This stopped the cracking, but now instead everything got worn and sloppy. At the same time, the 450 had a much more massive mounting system and gave little trouble. I still don't know what Deere was thinking. Other smaller crawlers, like Cletrac HGs, Cat D2, Allis Chalmers HDs series had some sort of suspension that would give over uneven ground. In fact, Allis Chalmers offered most crawlers in two versions - a "flatland" model that was mounted solid like a 350 Deere - mostly used in landfills and such, and a "rough-ground" model that had a suspension with give. Back to Deere 350s. The engines got slightly larger over time - the diesel went from 152 c.i. to 164 c.i. to 179 c.i. When the 350C series came out the steering clutches were changed over to a wet seutp, with disks that ride in oil and are hydraulically activated. We had miserable problems with them when they first came out - but eventually they got better. Personally, I don't see a big advantage over the older dry clutches when you figure in the cost of replacement parts, longevity, etc. Yeah, I've heard many complain about the dry clutches getting stuck when parked for a long time. Well, keep the water out of them - and tie a string on the steering levers to keep pressure of the clutches when in storage and they are fine. When the 350D came out, the drive mechanism that connects the engine to the reverser was finally updated to something that didn't fall apart every year. Eventually, the 400 repalced the 350 series.
Then, this caused a problem with many State conservation agencies. They had a mandate to buy U.S. built equipment - yet - after Deere stopped making the 350D and 450E, and replaced them with heavier machines - there were no longer ANY U.S. built crawlers that fell under the maximum weight requirements that many states had - i.e. there was no new U.S. crawlers in the lower weight class built anymore.
So - Deere started the "Certified Relife" program. In regard to the 350, it only applied to 350Cs and 350Ds. You trade it in, Deere updates it and sells it back to you - for around $30,000 - $50,000. Here's a list of what Deere uses to update the 350s.
Repower Engine 3 Cylinder 179 CU IN Torsional Isolator AT77319 Transmission/Steering Clutch AT125953 Steering Clutch (2) AT37548 Hydraulic Reverser Clutch With Manifold Final Drive JD7424(2), JD8100(2), T112784(2) JD8939(2), JD7416(2) T59769(2), AT36097(2), JD9079(2) JD9114, JD9113(2), JD9048(2) Hydraulic Pump AT38801 Valve 3 Spool AT71452 Cylinder Seals AR105454(2) Structure Bushing AU13822 Pin (2) U11121 Bushing (4) Radiator AT32087 Alternator TY161 Starter TY6702 Sheet Metal T32072 Left Side AT31177 Right Side AT104583 Hood Undercarriage AT104780 Roller (10) T129879 Sprocket (2) AT132705 Idler Roller (2) AT104595 Idler Kit Left AT104596 Idler Kit Right AT148540 Track with Shoes (2) Push Beam AT58688 Blade AT62829 (80 IN) Battery TY21741(2) Engine Wiring Harness AT64568 Seat AT105140 Fan Belt T24473 Lights AT135486(3) Muffler AT21689 Hourmeter AT160120 Paint Miscellaneous Bearings and Pulleys
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