Early 70's MAX II Build questions

[77rangerf150]

I have an early 70's MAX II I'm trying to rebuild. My plan is to put tracks on it with an 18hp or bigger engine. I have two complete lowers (with trans) that I plan on making one good lower. My other frame is an 80's max II with what looks like larger sprockets. The 80's frame is pretty much junk since the previous owner left it out side and let it fill up with water.

A few questions I have that I've tried researching...

Can I convert the frame to accept solid upgraded axles? Since I plan on running tracks, would it be a good idea to fab up my own axle extensions while I'm building it?

Can I use the sprockets from the hollow axles on the solid axles?

I'm sure I will have more questions as I get farther into the build.

Thanks

[Leftybowler22]

Wish I could help you out. But welcome to the forum. I think your the one who bought my early 70s Max II.

[msafi65]

Yes you can install solid axles in the early frame. I would use the sprockets that use #50 chain to the wheels if you have them. I run a 74 with rubber tracks and bearing cages and it is hard in the inner bushings. I would install inboard bearings while apart. I did mine years ago and wasn't planing to run tracks. Inspect the older frames real well around the transmission mount areas and in front of jackshaft mountings for cracks. Repair cracks and add gussets where you can. If you can get a good look at a newer max 2 look at the brace work that was added in the late 90s.

[77rangerf150]

ART- your message box is full. The axles are straight and the bushings are good.

[77rangerf150]

I was already planning on doubling the uprights on the frame. I dont have many cracks, but I have some damage around the jackshaft adjusting bolts on each side. I also plan on beefing up the back of the frame for the hitch.