4" angled lowering block help

[Ademuth]

this is my first time lowering a vehicle. Which way do i face the angle of the block? tall side to the back of the truck or tallside towards the front of the truck?

[ggzilla]

First, angle the engine/transmission down. Then fit angle blocks tall to the front.

[Ademuth]

thank you

[datzenmike]

Angle in, should equal angle out. On the rear driveshaft, the front U joint angle MUST equal the rear U joint at the differential.

 

Note that the left side remains at the same speed but the right has to spurt ahead then slow down to keep up. This acceleration will get worse the sharper the bend and cause vibration. The only way to cancel this out is to have the other U joint at the same angle and mounted 180 out so they cancel each other.

 

 

 

There is a measuring device for the driveshaft angles. Shimming the differential can be done to get these angles the same and well worth the bother. I lowered my 710 goon about 2" and the driveshaft hummed. I measured the angles and put the high part to the rear to tilt the diff down at the front. What a difference!!!.

 

[banzai510(hainz)]

I thought the block should be angled to the front of truck? high rear/ thinner front cause your raising the diff UP. you want to put the diff pinion down.

 

I assume this is the same what Mike said

[datzenmike]

Mine was higher to the back tilting the front down. Wedge direction does not matter as long as the driveshaft angles are corrected and as equal as possible to cancel vibration. My 'wedge' was 1/8" higher on the rear of the block, but the difference it made was unbelievable.

[ggzilla]

If you are just lowering the vehicle, use straight blocks.

 

Angled blocks are only used when transmission has been angled, or rear axle assembly has been rotated. Sometimes with a 4" drop the transmission is angled down and the diff angled up to match.

[banzai510(hainz)]

Ademuth

 

you might want to raise the carrier bearing also a little . make a spacer or use washers to raise the bearing up abit so it doesnt put a load on the end of trans.

Thats why the angles vlocks are made when you go to low it throws stuff off.

[boonedock saints]

If you are just lowering the vehicle, use straight blocks.

 

Angled blocks are only used when transmission has been angled, or rear axle assembly has been rotated. Sometimes with a 4" drop the transmission is angled down and the diff angled up to match.

what he said^^^^^^^^.....IF your pinion angle reaches much past 3 to 5 degrees of negative pinion angle you may consider the tappered blocks.

 

Another alternative is bringing your vehicle and having the leafs de-arched to the height you want, no block to worry about.

[banzai510(hainz)]

Belltech makse a 2deg 3inch block like 40-50$(part#6202 i think) done just buy them. DONE and has the 2deg so bst of both worlds and fits the datsun perfect

[Ademuth]

Whats a good shock to use with a 4 in lowering kit?

[datzenmike]

Drop blocks do not change the shock length. Any stock HD replacement. Firmer the better to reduce bounce and bottoming out .

[Laecaon]

If the blocks are angled, tall end goes to the back. Always.Lift or Lower.

[ONETYPE CUSTOMS]

WOW angle down to the back that dude is twisted.. Angle on a lowering block soul purpose is to correct pinion angle . IT MUST ANGLE DOWN TO THE FRONT and anything over about a 3" block needs corrected pinion angle