Radiator Support Bushings: Is this correct?

[TotalyHucked]

Do you by chance mean 1 5/8"

Yes, sorry. I'm so scattered today. 1 5/8" is what that hole actually is @Sad Sack

 

[Toad455]

Yes, sorry. I'm so scattered today. 1 5/8" is what that hole actually is @Sad Sack

Ok no prob, thanks. I was hoping so, I thought had an oddball or something. Mine are around 1.720 due to rust. But the part of the bushing that fits in the hole is like 1.370. So if mine weren't rusted and I had a 1 5/8 hole I would only have about .255 play instead of the .350 play that I have. Well that's only .095, not sure if I should change to a fresh set of brackets or let it ride. I'd like to know what the O.D. is on some of the other bushings people posted that fit in the hole.

 

[Toad455]

I contacted USA1 and asked what the hole size is on their radiator support mounts and they said 1.5" Just an update to anyone curious.

 

[Toad455]

Hello All. I have a set of Energy Suspension cab and radiator support bushings # 4109G. The cab bushings fit but the support bushings seem to be wrong. See the pics. The hole in the frame is quite a bit larger than the center of the bushing. The support can slide around quite a bit. I haven't tightened it down all the way but I feel that even tight it will be able to slide. The truck is a 78 2wd. Anyone used these before with success?
the

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Thanks for all the replies. I think I responded to all but sorry if I missed anyone. I'm not familiar with the "quote, multi-quote" thing, I think just "reply" would be simpler. But anyway, USA1 said the hole in their new mounts are 1.5" so looks like mine are rusted to the point that the hole is too large so I guess I'll be grinding rivits. Wish I caught this before I blasted and painted the frame but oh well.

 

[legopnuematic]

I did measure my 79s yesterday. 1.7” diameter hole fwiw.

 

[CalSgt]

Thanks for all the replies. I think I responded to all but sorry if I missed anyone. I'm not familiar with the "quote, multi-quote" thing, I think just "reply" would be simpler. But anyway, USA1 said the hole in their new mounts are 1.5" so looks like mine are rusted to the point that the hole is too large so I guess I'll be grinding rivits. Wish I caught this before I blasted and painted the frame but oh well.

I'm not convinced you "Need" new core support mounts for the frame, if that's what you want to do I'm not judging.

Just bolt the core support down with what you've got, the fenders and inner wheel wells should hold the core support wherever you adjust it. Like someone said earlier you will need some wiggle room to adjust your core to your body panels or visa versa. I hade to get a jack on my core support to get my hood gaps acceptable. The mounts just need to dampen vibration and hold the core support to the frame.

Or... since your body mounts you purchased just use a washer to center why not fabricate a new washer that fits better?

Or... You could also just repair the hole in the frame and touch up the paint

I bought the fanciest rubber body mounts I could find (Goodmark I think) & still needed to modify them for the core support. My issue had to do with the height more than the hole diameter, I couldn't get my fender gaps even close without cutting them down. Actually, I don't remember mine even having a washer to limit movement in the frame hole, just the sleeve that limits how far the mounts will compress.

IIRC this is the rear cab mount but the core support mount was similar.

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[DoubleDingo]

I agree with @CalSgt I don't think you need to worry about the frame mounts.

 

[Toad455]

I did measure my 79s yesterday. 1.7” diameter hole fwiw.

Thanks much. I may replace my mounts or may just weld on a custom washer.

 

[Toad455]

I'm not convinced you "Need" new core support mounts for the frame, if that's what you want to do I'm not judging.

Just bolt the core support down with what you've got, the fenders and inner wheel wells should hold the core support wherever you adjust it. Like someone said earlier you will need some wiggle room to adjust your core to your body panels or visa versa. I hade to get a jack in my hood gaps acceptable. The mounts just need to dampen vibration and hold the core support to the frame.

Or... since your body mounts you purchased just use a washer to center why not fabricate a new washer that fits better?

Or... You could also just repair the hole in the frame and touch up the paint

I bought the fanciest rubber body mounts I could find (Goodmark I think) & still needed to modify them for the core support. My issue had to do with the height more than the hole diameter, I couldn't get my fender gaps even close without cutting them down. Actually, I don't remember mine even having a washer to limit movement in the frame hole, just the sleeve that limits how far the mounts will compress.

IIRC this is the rear cab mount but the core support mount was similar.

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Sounds and looks good, thanks for the reply. I'm prob just going to run them and tighten down. Once the truck is together I'll forget about it anyhow, ha. And I never saw a jack like that, looks handy.

 

[TotalyHucked]

Just as a side note to add another option, Tinworks Fab makes nice body/radiator mounts as well if you don't care that they don't look OEM. I've got them on my truck, they offer the later large hole as well as the earlier small hole

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[CalSgt]

Sounds and looks good, thanks for the reply. I'm prob just going to run them and tighten down. Once the truck is together I'll forget about it anyhow, ha. And I never saw a jack like that, looks handy.

Dad inherited that from my grandpa's body shop after it burnt down... Grandpa called it "Monkey on a stick" and we always thought that was a funny made up name but turns out that is the actual name. They're still sold today

https://www.eastwood.com/monkey-on-...MIiaCnqvn_lAMVeydECB3Ksyo_EAQYBiABEgL66fD_BwE