help with BBC towers - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Inthuwind · 06-07-2006, 10:10 PM

I bought these and none of the holes line up on my '68 frame. Are these big block towers or what's the deal?? Are the years different from '67-'72, or????

**jamie72** · 06-07-2006, 10:16 PM

not sure on the frame, but those look like 68-71 mounts,there is another set of 72 only mounts,but those should work.

Inthuwind · 06-07-2006, 10:27 PM

I forgot to mention, I have a '72 crossmember underneath--geeez. Will I have to redrill holes now??

bigblock69 · 06-07-2006, 10:44 PM

Quote:

Originally Posted by Inthuwind

I forgot to mention, I have a '72 crossmember underneath--geeez. Will I have to redrill holes now??

If you are not interested in drilling new holes, I will purchase the towers from you so you can get 72 BBC towers. I need the towers you have. If not, where did you find them?

**FRENCHBLUE72** · 06-07-2006, 10:47 PM

The early towers are hard to find the steel part for and easy to get the rubber parts for and the 72 only ones are easy to find the steel and very hard to find the rubber's... Hard to tell from the photo but those do look like the early model towers,but the frame holes should at least line up....

stllookn · 06-08-2006, 02:41 AM

I recall having to drill new holes in a '71 cross member for big block mounts. I don't know which mounts they were either so I guess am not much help. NO FEAR...LOL!

Inthuwind · 06-08-2006, 06:29 AM

Quote:

Originally Posted by bigblock69

If you are not interested in drilling new holes, I will purchase the towers from you so you can get 72 BBC towers. I need the towers you have. If not, where did you find them?

I got them from PICKMUP here on the board(great guy)~~ I will probably redrill holes. Thanks for the replies everyone.

*FormerMember* · 06-08-2006, 08:30 AM

Quote:

Originally Posted by FRENCHBLUE72

The early towers are hard to find the steel part for and easy to get the rubber parts for and the 72 only ones are easy to find the steel and very hard to find the rubber's... Hard to tell from the photo but those do look like the early model towers,but the frame holes should at least line up....

This is not accurate.

It's easy to find 67-71 SBC rubber mounts and difficult to find the 67-71 BBC rubber mounts, which is why there's numerous posts on using SBC rubber mounts with a large washer on those towers.

The 67-71 BBC towers are findable from any of our supporters. WES has a few sets when I last talked with him.

72 BBC mounts use the common SBC and BBC rubber or poly mounts found in 73 and later vehicles. I have a set. They are also rarer than hen's teeth from what I could tell when I bought mine last year.

To the original poster, when I did mine, the top holes lined up and I had to drill the bottom ones.

Do you have them in the correct position on the frame? The V8 holes are further towards the front than the inline 6.

70rs/ss · 06-08-2006, 11:31 AM

To add to the above post be sure you have the lft on the lft and so on. They go in the front holes on the frame and the bottom foot should sweep back. I think the holes should be there, but I have never put them in a 72, only 67-70. Either way the top two holes should line up and the only hole that you may need to drill would be the bottom foot.

Inthuwind · 06-08-2006, 08:43 PM

Thanks everyone for the help. I got looking at it tonight and saw that most of the later frames were "notched out" where the towers went. I notched mine and everything fell into place. I believe there is a difference in frames between '67-'72 somewhere. Anyone have a clue??

**Chevy4Life** · 06-08-2006, 09:21 PM

Quote:

Originally Posted by Inthuwind

Thanks everyone for the help. I got looking at it tonight and saw that most of the later frames were "notched out" where the towers went. I notched mine and everything fell into place. I believe there is a difference in frames between '67-'72 somewhere. Anyone have a clue??

The 67' s had a wider top frame rail because BB was not offered that year. I thought all 68' s had the thinner frame rail. Maybe an early 68 frame?

Inthuwind · 06-09-2006, 09:08 AM

Maybe so, I'll keep researching. Seems like I find something new everyday.

06-07-2006, 10:10 PM	#1
Inthuwind Straight jacket required Join Date: Oct 2003 Location: OKC, OK Posts: 882	help with BBC towers I bought these and none of the holes line up on my '68 frame. Are these big block towers or what's the deal?? Are the years different from '67-'72, or???? Attached Images __________________ 1968 C10 Short Stepper 350/350 A/C P/S P/B Front disc 3/5 static/ 12bolt rear 3:73 1979 Pontiac Trans Am 10th Anniversary/455/4spd 2011 H-D Street Glide - CAMMED n lowered Dad always said,"Son, if you can't be good...be good at it."

06-07-2006, 10:16 PM	#2
jamie72 Senior Member Join Date: Apr 2000 Location: madison indiana Posts: 3,839	Re: help with BBC towers not sure on the frame, but those look like 68-71 mounts,there is another set of 72 only mounts,but those should work. __________________ jamie72 72 BB cheyenne -- Restoration getting started.. member #807 http://www.myspace.com/whitetailobsession www.antlertalk.com

06-07-2006, 10:27 PM	#3
Inthuwind Straight jacket required Join Date: Oct 2003 Location: OKC, OK Posts: 882	Re: help with BBC towers I forgot to mention, I have a '72 crossmember underneath--geeez. Will I have to redrill holes now?? __________________ 1968 C10 Short Stepper 350/350 A/C P/S P/B Front disc 3/5 static/ 12bolt rear 3:73 1979 Pontiac Trans Am 10th Anniversary/455/4spd 2011 H-D Street Glide - CAMMED n lowered Dad always said,"Son, if you can't be good...be good at it."

06-07-2006, 10:47 PM	#5
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,604	Re: help with BBC towers The early towers are hard to find the steel part for and easy to get the rubber parts for and the 72 only ones are easy to find the steel and very hard to find the rubber's... Hard to tell from the photo but those do look like the early model towers,but the frame holes should at least line up.... __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

06-08-2006, 02:41 AM	#6
stllookn Saving 1 truck at a time! Join Date: Aug 2001 Location: Kent, WA Posts: 6,465	Re: help with BBC towers I recall having to drill new holes in a '71 cross member for big block mounts. I don't know which mounts they were either so I guess am not much help. NO FEAR...LOL! __________________ '68 C20 Longhorn 50th Anniversary 400/TH400 '68 C20 Longhorn 50th Anniversary 468/TH400w/buckets '72 C20 Halfhorn (Longhorn w/o cab and front clip) '69 Flxible Cruiser (look up ugly in the dictionary)

06-08-2006, 11:31 AM	#9
70rs/ss Registered User Join Date: Dec 2004 Location: Northern AZ Posts: 7,271	Re: help with BBC towers To add to the above post be sure you have the lft on the lft and so on. They go in the front holes on the frame and the bottom foot should sweep back. I think the holes should be there, but I have never put them in a 72, only 67-70. Either way the top two holes should line up and the only hole that you may need to drill would be the bottom foot.

06-08-2006, 08:43 PM	#10
Inthuwind Straight jacket required Join Date: Oct 2003 Location: OKC, OK Posts: 882	Re: help with BBC towers Thanks everyone for the help. I got looking at it tonight and saw that most of the later frames were "notched out" where the towers went. I notched mine and everything fell into place. I believe there is a difference in frames between '67-'72 somewhere. Anyone have a clue?? __________________ 1968 C10 Short Stepper 350/350 A/C P/S P/B Front disc 3/5 static/ 12bolt rear 3:73 1979 Pontiac Trans Am 10th Anniversary/455/4spd 2011 H-D Street Glide - CAMMED n lowered Dad always said,"Son, if you can't be good...be good at it."

06-09-2006, 09:08 AM	#12
Inthuwind Straight jacket required Join Date: Oct 2003 Location: OKC, OK Posts: 882	Re: help with BBC towers Maybe so, I'll keep researching. Seems like I find something new everyday. __________________ 1968 C10 Short Stepper 350/350 A/C P/S P/B Front disc 3/5 static/ 12bolt rear 3:73 1979 Pontiac Trans Am 10th Anniversary/455/4spd 2011 H-D Street Glide - CAMMED n lowered Dad always said,"Son, if you can't be good...be good at it."



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