drive line conversion u-joints

[backwoodsblazerk5]

going with a 4 inch lift and did a swap for a d60 front and 14 bolt in the rear. I have had several people tell me to get a conversion u-joint but where in the world would I get one? also, do yall think I could get away with running stock driveshafts with a 4 inch lift and maybe some axle shims or something?

 

[jeff in co]

I've done a little reading over the past few days and saw a lot of "Napa u-joint" references for conversions. I'm guessing you want a 1310 to 1350 joint?

here you go......
http://coloradok5.com/forums/showthread.php?t=286500&highlight=napa+conversion+u-joint

 

[herkdriver007]

Napa 447 if memory serves, perfect fit

 

[big dan]

Napa 447 if memory serves, perfect fit

Depends on what year the truck is you are swapping the axles into.

If it has a 12 bolt rear it uses a 348

If 10 bolt rear then 447

Can usually get them at any local parts store.

 

[SHORTY915]

Conversion

You can also buy them at oreilly auto parts they use the same numbers that napa uses and they are cheaper

 

[TheBeast_88K5]

or you could get a CV driveshaft, with 1350's....

 

[85k5dsl]

Napa 447 if memory serves, perfect fit

The 447 is the same as the Neapco 2-1153 which most auto stores have.

 

[backwoodsblazerk5]

Yeah I went to autozone yesterday and the guy thought I was speaking jibberish or something. Its a 1990 so a 447? And what about up front?

 

[1BEATK5]

The front is the same on all axles

 

[85k5dsl]

Yeah I went to autozone yesterday and the guy thought I was speaking jibberish or something. Its a 1990 so a 447? And what about up front?

Correct the 447 will work for the rear. As stated the front doesn't have to be changed.

 

[4xcrazy]

I went through two of Autozones conversion u-joints, and the ones around here for some reason, well back when I needed them, didn't have any in stock, they had to be ordered in... So I went to Napa, got the 447 and it has only been replaced once and that was only because the driveshaft was borrowed to get a friends broke down truck unstuck from a trail run he went on by himself.

I figured it was apart, I may as well replace it.

Some parts I just won't buy at Autozone anymore... and believe me, I have bought A LOT of parts from them

 

[colbystephens]

I have a '90 K5 and just did the Dana 60/14 Bolt swap. My driveshaft was 3R. I used a 3R to 1350 conversion U-Joint. The driveline builder measured everything to make sure the joints were right.

In the past when I did a 3/4 ton swap into another truck, I just took the driveline u-joint to the parts store and had them look up a u-joint for a 14bff. They went and got it, measured both u-joints and figured out which conversion to get.