Do you think the
Dana 300 is better than the
Dana 20 ??
The only thing better about the
Dana 300 over the
Dana 20 is the 2.62 low compared to the 2.0 low of the 20. Other then that it is just as strong, steel case, gear driven and can be twin sticked. As for strength of the case its self the
Dana 20 was the main
Transfer Case used in FSJ one ton jeeps with 360's and 401's. IF the
Dana 300 was stronger im pretty sure they would have used them instead
The thing to ask when debating on the 300/20 swap is what do you do with the jeep. Rocks? mud sand? extreme crawling?? If your mostly trail riding, sand, mud then you need high wheel speed to keep moving.. rock crawling you will need the lower crawl ration but then the 2.62 is not that great for crawling any way.
The IH
Dana 300 was only produced for one year so that makes them Very hard to come by, so you pay alot when you do find one, parts are hard to come by.. you pay alot for them also. then there is the ever elusive bull gear. a IH scout uses different input gear then the
Dana 20 and that seems to be the hardest thing to find so when you do find em guess what? You pay alot for them.
If your lucky enough to find a IH 300 you can expect to pay 250-400 for it and more then likely it will need to be rebuilt so your gonna drop another $200 for the kit. Then the golden egg input gear I would expect to pay another $100-
AMC 150 for so on the low side your at least $600 in the whole for a extra .62 of gear reduction. IF you wanted a better gear reduction you can upgrade your
Dana 20 while rebuilding it to a 3:15 tera low kit for around $800
You shouldnt have to pay 200-400 for a used
Dana 20 . Any Jeep (almost) wagoneer and J-Truck were produced prior to 1979 came with either a
QuadraTrac or
Dana 20 . IF you look at the front axles and there is no locking hubs then its a
QuadraTrac . Stop going to junkyard asking for a CJ
Transfer Case .. people think jeep CJ parts are made from gold plated stripper nipples and charge accordingly.
If it were me I would keep it simple and rebuild/run your current 20. Look long and hard at the IH
Dana 300 swap before you jump on a case.