hows my pinion angle?

[84CUCV]

friend will be here to burn in the perches in a few hours. nothing like waiting to the last minute. its a 1980 k20 springs moved up. 110" wheelbase now. th400/205. has 4" spring and a flip. i took this apart some. killed off a lot of these trucks. sold the axles.. now im going to finish this one. the left spring i need to get it over 1/2 a inch to line it up. not sure why its like that. going to use a small bottle jack and some wood. thought i would ask.. see what you guys think thanks

 

[nvrenuf]

The truck looks unfinished. If so, once you add weight (bed, etc) won't that change the angle some?

 

[rebelgregory]

The truck looks unfinished. If so, once you add weight (bed, etc) won't that change the angle some?

This^. The angle looks good, but it needs to look like that with the jackstands under the axle and some weight on the frame. (as close to a normal weight as you can get it)

If you burn it in right now, your pinion will be too high.

.

 

[rebelgregory]

Also, mind where your front jackstands are. with the rear jacktands out from under the frame, the front jackstands will be a fulcrum and the front of the truck will lighten the rear more than it usually would.

Ideally, you want the front on its tires, or jackstands under front axle, and the rear supported on the axle tubes and at a normal weight. Bounce the suspension a couple times and then set the angle 1.5 to 2 degrees down from inline with the driveshaft (CV type). Of course, the angles are different for a single cardan shaft.

 

[sweetk30]

if drive shaft is NOT c/v head then its wrong also . non c/v shafts need same angles to cancel each other out .

if I recall correctly .

 

[dyeager535]

Yep. When HAD built my driveshaft, based on driveline length he said I should really run a CV shaft. Everything about u-joints I know says that unless CV, both joints need to run at the same angle.

In my case, since I was cheap, they don't, and I get a noticeable (but not terrible) vibration at higher MPH which I'm fairly certain is the driveshaft.

 

[84CUCV]

The truck looks unfinished. If so, once you add weight (bed, etc) won't that change the angle some?

yes that is true. I decided one night was just finished it. Didn't think of that. Going to get some one to add tube and some toolboxes and rear tie it all into the rock sliders. I'm sure that would change the angle. looking at the truck today. I used to jacks to get the axles into place. Not much pressure all. Frame is off the jack stands. Dammit not going to be a quick I after all. Got the 2wd steering box on. Going to bolt up to 60 tonight.

 

[84CUCV]

getting the 60 in today. pulled all the lines. going to make new ones today. anyone know the bolts size i need for the 60? i have the 3 u bolts lost the bolt.. thanks again

 

[raymos]

Pretty sure they're 5/8x11. Then whatever length you need obviously

 

[84CUCV]

thanks