HandBuilt
10-20-2002, 05:55 PM
Get your mind out of the gutter.
So, the rear 10 spline has to go. It's been a long, fun ride, but I can't see myself changing another diff this winter, or buying some halfshafts.
I have a few ideas, wondering if I could get some opinions.
What I want to do is get a 1 ton yank rear end with 3.54 gears, and narrow the pass (right for you 'nglishmen) side to maintain the same track. Even if I only get a few inches of offset, it'll be better than nothing, and this is a 109 so I have a lot of rear driveshaft.
My current choices are following:
14 bolt Chev. King of ring and and pinion strength, 1.5" shafts. Super heavy and the housing is gigantic. Like a 3rd wheel off-road.
Dana HD60. Strong enough; 1.5" shafts. Not as cheap or available as the 14 bolt. Better ground clearance. Lighter, I believe.
Salisbury. Ready made bolt pattern, brakes and ratio. Not as heavy duty, and all the brackets are wrong anyways for my suspension. Expensive. Hard to get. Expensive.
The mods to get me there (with yank parts) are listed here:
The wheel hubs are the tricky part.
1 - I could try and find bearings with the ID of the full floater stub axle off the yank diff, and an OD to fit the ABS rangie wheel hubs. This might be possible. I'd have to make some spacers (distance pieces) that are longer to account for the thinner wheel hub, and the drive flanges on the axles (8 bolt, integral to axle) would be wrong. I would have to build drive flange adapters or get custom shafts.
2 - Use the yank 8 bolt hubs, build an adapter to get the right bolt pattern, also possibly, an adapter that would allow the stock rotor to be retained. I'd rather stay away from the drums as they are extremely heavy. Does anyone know if the wheel hubs on an american axle are cast iron or cast steel? If they were cast steel I could just weld to them.
3 - Build a pair of custom wheel hubs. Billet steel. Inside is made like the original axle's hub, with rover wheel pattern and rotor mounting pattern.
Narrowing one axle would be pretty easy. Moser could do it.
Brakes would be a problem (as mentioned above). I'd like to use the stock rangie bits, but I don't know if they would fit. Caliper mounts are easy.
Driveshaft would be a matter of getting an adapter U joint, from 1310/1350 down to rover. This should be available from spicer, right?
Give me your opinions, folks. Machining is cheap. Parts are expensive. That's why I'd rather reuse than buy new. I'm tempted to go for the 14 bolt as it's never been done and they are cheap. A 3.54 14 bolt out of a 1 ton van can be had for about 250$.
thanks
J-L
So, the rear 10 spline has to go. It's been a long, fun ride, but I can't see myself changing another diff this winter, or buying some halfshafts.
I have a few ideas, wondering if I could get some opinions.
What I want to do is get a 1 ton yank rear end with 3.54 gears, and narrow the pass (right for you 'nglishmen) side to maintain the same track. Even if I only get a few inches of offset, it'll be better than nothing, and this is a 109 so I have a lot of rear driveshaft.
My current choices are following:
14 bolt Chev. King of ring and and pinion strength, 1.5" shafts. Super heavy and the housing is gigantic. Like a 3rd wheel off-road.
Dana HD60. Strong enough; 1.5" shafts. Not as cheap or available as the 14 bolt. Better ground clearance. Lighter, I believe.
Salisbury. Ready made bolt pattern, brakes and ratio. Not as heavy duty, and all the brackets are wrong anyways for my suspension. Expensive. Hard to get. Expensive.
The mods to get me there (with yank parts) are listed here:
The wheel hubs are the tricky part.
1 - I could try and find bearings with the ID of the full floater stub axle off the yank diff, and an OD to fit the ABS rangie wheel hubs. This might be possible. I'd have to make some spacers (distance pieces) that are longer to account for the thinner wheel hub, and the drive flanges on the axles (8 bolt, integral to axle) would be wrong. I would have to build drive flange adapters or get custom shafts.
2 - Use the yank 8 bolt hubs, build an adapter to get the right bolt pattern, also possibly, an adapter that would allow the stock rotor to be retained. I'd rather stay away from the drums as they are extremely heavy. Does anyone know if the wheel hubs on an american axle are cast iron or cast steel? If they were cast steel I could just weld to them.
3 - Build a pair of custom wheel hubs. Billet steel. Inside is made like the original axle's hub, with rover wheel pattern and rotor mounting pattern.
Narrowing one axle would be pretty easy. Moser could do it.
Brakes would be a problem (as mentioned above). I'd like to use the stock rangie bits, but I don't know if they would fit. Caliper mounts are easy.
Driveshaft would be a matter of getting an adapter U joint, from 1310/1350 down to rover. This should be available from spicer, right?
Give me your opinions, folks. Machining is cheap. Parts are expensive. That's why I'd rather reuse than buy new. I'm tempted to go for the 14 bolt as it's never been done and they are cheap. A 3.54 14 bolt out of a 1 ton van can be had for about 250$.
thanks
J-L