Does anyone know if 73 and up 4wd Burb shocks will fit 67-72 Burbs?

[Brewski*]

Does anyone know if 73-85 4wd Burb shocks will fit 67-72 Burbs? I want to put a higher performance shock like the on my burb but don't know if the fit is the same?

I put 73 and up Edelbrock IAS shocks on my GMC 3/4 ton and had to compress them slightly in the front and the back shocks had to have the bottom mounts widened slightly. The ride is very good but I do not wish to make any mods on the suburban.

[Mudder]

Measure from mount to mount. See if they are close...

[4x4Poet]

Originally Posted by Brewski*

...had to compress them slightly in the front....

What does that mean, exactly?

The general rule is 3 up, 6 down. With the vehicle on level ground, the shocks should have 3" of compression travel available and 6" of droop available. IOW, measure the length of each shock fully compressed and extended. Then make sure that its static mounted length (as above) fits within the 3up, 6 down rule. Excess travel either way is usually ok, so long as the rule is met.

The most crucial measurement is to compare how much travel the u-bolt plate or a-arm has to the bump stop/frame. Then make sure that the shock has enough compression travel available to never bottom out when the bump stops are also bottomed out.

The best method is to cycle the suspension to check for inadequate shock extension or bottoming out. One can do the poor mans cycling. Jack up one wheel on each axle (1 on frt, 1 on rear) on opposite sides of the truck from each other, as if suspension is twisted up. Suspend each lifted tire in the air to get the most "droop" and "stuff." Place jackstands and check for shock travel issues. Repeat using the wheels not lifted.