10 Bolt to 14 Bolt

Ted Burkholder said:

No, I have the JB5 10" rear brakes. So When I swap in the rear end, The only thing I'll need (From what I understand) is just a conversion U-Joint? Not U bolts (or plates) or that combination (proportioning valve)

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No prop valve needed, u bolts may or may not be reusable. Depends on where you live.

^Ditto, if you live in the salt belt you will, most likely, have to buy new u-bolts.

Howdy. I have a question also in regards to 14 bolt semi float axles. I have an 88 Chevy k1500. I found a 88 gmc c2500 with the 14 sf. Is the c2500 14 bolt semi float able to be swapped to my k1500 or would I need to find a k2500 with the 14 bolt semi float? Has anyone here done this or is it not compatible? Thanks in advance.

It'll fit, but the 2wd axles are narrower than the 4wd axles.

samevo said:

Howdy. I have a question also in regards to 14 bolt semi float axles. I have an 88 Chevy k1500. I found a 88 gmc c2500 with the 14 sf. Is the c2500 14 bolt semi float able to be swapped to my k1500 or would I need to find a k2500 with the 14 bolt semi float? Has anyone here done this or is it not compatible? Thanks in advance.

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You'll need to find a K series with the 14 bolt SF, the C2500 is a few inches narrower. Some of the K1500's had the 14 bolt, you can look that up on car-part.com and see what's around you.

I have a 90 light duty 3/4ton with 14 bolt 6lug and I want to put it in my 90 gmc sierra st I know it's the right one not being a 4wd one I've contacted Moser on new axles but there rather pricey so I'm thinking of just having the axles drilled for 5 lug and new drums from summit for and ss truck

murphy455 said:

I have a 90 light duty 3/4ton with 14 bolt 6lug and I want to put it in my 90 gmc sierra st I know it's the right one not being a 4wd one I've contacted Moser on new axles but there rather pricey so I'm thinking of just having the axles drilled for 5 lug and new drums from summit for and ss truck

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The hub center is different between the 5 lug and 6 lug. If you just redrill the hub face and drums, your 15" wheels still won't sit flush on the hub.

What's wrong with going 6 lug? It's less painful of a swap, but a little more costly. Just install the 2wd rear axle, and c2500 6 lug front rotors and get a new set of wheels/tires. 16s are much easier to find than 15s lately.
Oh, and thanks for reviving a 5 year old dead thread.