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FIFTH WHEEL REINFORCEMENT

olympicorange

Active member
...... reinforcement of the ''steel'' fifth wheel plates is a good upgrade, and in certain circumstances , such as optional equipment ; as in a rear mounted tiller ( a rare option), or front mount snow blade, an engine upgrade(weight increase), etc.,.... a must. also updating the leaf spring 'stacks'' weight rating ,for extra load-carrying, is a good idea,..... on the 1542 , it had a rear tiller & power plant assy. added to it , so the rear fifth wheel had been reinforced. so when i removed the 318 , and installed the 3.9L ''B'' series, I reinforced the front fifth wheel , when I had it out to ''rebush'' the trunnion shaft & leaf spring ''eye-lets'',... here's a few pics ,.. I found that the easiest way to address the disassembly & reassembly, of the fifth whl. assy., is to ''roll-it'' out , from underneath the Cat, on the bogie wheels, after removing the tracks. which helps with re-aligning, because it rolls out & in on the same ''line''. everyone feel free to add your upgrade pics,.... :thumbup:
 

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olympicorange

Active member
....... and a few ''installed'' pics,.....
 

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sno-drifter

Bronze Member
GOLD Site Supporter
OO you may want to keep in mind that the steel fifth wheels are made of T-1 or A 514. I would use lo-hy rod or the proper flux core wire to weld with.
 

olympicorange

Active member
….. thank you S/D , roger that..... I usually forget to add the important info, crs,... good info . I;ve had good luck with the ones I've done so far, :thumbup:
 

olympicorange

Active member
.... another topic mentioned not too long ago was ,.... '' the corrosion in the differential housings'',.... I've come across this a number of times. I find the best way to clean the ''diff's'' out, is to mark the brg. 'caps'' , of the ''diff. carrier'' housing assy., and remove it ( after removing both axle shafts). also , that the shop Vac hose ''inlet stem'' slides into the axle housing ''inner tubes'', and with a long pneumatic ''blow-gun'' , and scraper.... helps with the cleaning process for the bulk/debris. A parts brush, some pressurized parts cleaner,in conjunction with the shop vac, works well. etc. cleaning & inspection the ring & pinion, brgs., races, and also the sprocket hubs, and similar, etc... is important. the ''height/level'' of the oil fill plug, In the diff. cover , on some models , isn't high enough for the gear lube to run out to the ''outboards/outers'' ( sprocket drive hubs (wheel hubs) for lubrication. in some cases of neglect, that's a lucky thing,.... a common practice for steep incline applications, an oil level ''elevator'' could be installed. tucker had a factory bulletin also. so , in the normal/lower operation applications, I like to pack the hubs, brgs., races , etc. with wheel brg. grease. much like a 4wd p/u application, on the frt. hubs/spindles. where as the rears are usually an ''oil bath'' unit. one pro with this is that if you if you happen to develop a hub seal leak, it won't drip over the inside of track system components. here's a few pics.....
 

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