65 Burb body mounts

[RoyL]

Originally Posted by padresag

the height of the insulator excluding the raised part is .720"(23/32"). shy of 3/4"
ron

Ron,
I assume you are talking about the original mounts vs the new repro ones? Anybody who's got a set in hand, can you measure the thickness, please? Folks say they are "thinner" than original. Called Truck Shop and they didn't have that info handy... none in stock ~2 weeks ago.

[66 Burban]

Originally Posted by RoyL

Ron,
I assume you are talking about the original mounts vs the new repro ones? Anybody who's got a set in hand, can you measure the thickness, please? Folks say they are "thinner" than original. Called Truck Shop and they didn't have that info handy... none in stock ~2 weeks ago.

According to Steve, I got the last set until new shipment arrives.
Just checked one of mine........
Without raised section: .594" to .610"
Raised portion: .682" to .704"
The rubber does seem to be higher durometer (denser), and should not compress as much.
So, we're talking about less than .10" difference --- should not be a problem..

[padresag]

Originally Posted by 66 Burban

According to Steve, I got the last set until new shipment arrives.
Just checked one of mine........
Without raised section: .594" to .610"
Raised portion: .682" to .704"
The rubber does seem to be higher durometer (denser), and should not compress as much.
So, we're talking about less than .10" difference --- should not be a problem..

Billy: are are you saying .010 or .100" which is closer to 1/8" which could cause a few alignment problems such as doors if you are using the regular front body mount insulator.
these trucks though were well compensated with the use of shims to tweek theses sort of adj.
It does look like they are selling a complete suburban mounting kit and the others are also perhaps compensated for in height
ron

[RoyL]

Originally Posted by 66 Burban

According to Steve, I got the last set until new shipment arrives.
Just checked one of mine........
Without raised section: .594" to .610"
Raised portion: .682" to .704"
The rubber does seem to be higher durometer (denser), and should not compress as much.
So, we're talking about less than .10" difference --- should not be a problem..

Originally Posted by RoyL

Here are some pics comparing the originals and the ones I bought (3946246), showing the difference in the hole diameters:

Thank you!

Another favor, can you measure the two hole diameters from your Truck Shop reproductions?

Here's what I think they are supposed to be:
my measurements from old mount
rubber side hole diameter - ~0.75"
steel side hole diameter - ~0.44"

(Chevy parts book, ron, lewis)
length - 3.0"
width - 1.76"
height (thickness) - 0.92" w/ raised portion, 0.72" w/o raised portion

Thx,
Roy

[RoyL]

Originally Posted by RoyL

Thank you!

Another favor, can you measure the two hole diameters from your Truck Shop reproductions?

Here's what I think they are supposed to be:
my measurements from old mount
rubber side hole diameter - ~0.75"
steel side hole diameter - ~0.44"

Thx,
Roy

I've call the truck shop a 3-4 times, and emailed them. When I get thru, they didn't have the mounts in stock to measure, or I'm on hold for 15-20 minutes and never get thru. Can someone with a pair measure the 2 hole diameters? Just want to make sure.

Thx,
Roy

[RoyL]

Originally Posted by RoyL

I've call the truck shop a 3-4 times, and emailed them. When I get thru, they didn't have the mounts in stock to measure, or I'm on hold for 15-20 minutes and never get thru. Can someone with a pair measure the 2 hole diameters? Just want to make sure.

Thx,
Roy

[RoyL]

Originally Posted by 66 Burban

According to Steve, I got the last set until new shipment arrives.
Just checked one of mine........
Without raised section: .594" to .610"
Raised portion: .682" to .704"
The rubber does seem to be higher durometer (denser), and should not compress as much.
So, we're talking about less than .10" difference --- should not be a problem..

I finally got mine from truck shop so I measured the rectangular mounts:

Here's what I think they are supposed to be (Chevy parts book, ron, lewis) Truck shop measurements in blue:
length - 3.0" Truck Shop - 3.25"
width - 1.76" Truck Shop - 1.9"
height (thickness) - 0.92" w/ raised portion, 0.72" w/o raised portion
Truck Shop height - 0.69" w/ raised portion, 0.59" w/o raised portion
rubber side hole diameter - ~0.75" Truck Shop - 0.76"
steel side hole diameter - ~0.44" Truck Shop - 0.62"

Have not installed yet, anybody have a problem with them fitting between the rails, since these are a little wider?

And the diameter of the steel side hole is much larger, looks like it'lll make for a sloppier fit for the bolt?

[RoyL]

Originally Posted by RoyL

I finally got mine from truck shop so I measured the rectangular mounts:

Here's what I think they are supposed to be (Chevy parts book, ron, lewis) Truck shop measurements in blue:
length - 3.0" Truck Shop - 3.25"
width - 1.76" Truck Shop - 1.9"
height (thickness) - 0.92" w/ raised portion, 0.72" w/o raised portion
Truck Shop height - 0.69" w/ raised portion, 0.59" w/o raised portion
rubber side hole diameter - ~0.75" Truck Shop - 0.76"
steel side hole diameter - ~0.44" Truck Shop - 0.62"

Have not installed yet, anybody have a problem with them fitting between the rails, since these are a little wider?

And the diameter of the steel side hole is much larger, looks like it'll make for a sloppier fit for the bolt?

I finally got to replacing some of my rubber body mounts with the Truck Shop ones. I used the square ones with the sleeves on the frontmost cab mounts. Good fit, previous ones were round, I assume replaced at some point. Don't have the fenders on yet, so don't know if I'll need spacers for added thickness.

I used the rectangular ones to replace my rusted ones in the rear positions. They do fit between the rails, was concerned with extra width. Comments on the install of the rectangular ones:

• No sleeve hardware provided, gotta find your own.
• Raised half moon sections were too low, didn't really make a good positive interlock with the other mating half. OEM height was 0.2”, these are ~0.1" or less. Some were taller than others, not consistent.
• Larger hole on the steel made for a sloppy fit, but not a big deal.
• Thickness was less than original parts (not quite 1/4" less), you may need to use spacers