65-70 Full Size Chassis Tech Forum

ABC123 · ABC123

(Online photo, not mine) My car has been on the hoist for 4 days now ! The problem is the rear flex line where it mounts and passes through the frame crossmember. There is a retaining clip for each side of the frame. Every part brought in has the clips too close together as if the cross member is too thick....

cdnpont · cdnpont

Had a nice visit this afternoon from CP member Cliff (oshawacliff), who has a gorgeous Oshawa 67 Impala FB.He's been trying to find replacement rotors as his car has the 4 piston disk brakes. He brought along the supposed 67-68 direct fit rotor from Ecklers he purchaced. What we discovered is th...

cdnpont · cdnpont

CP'ers For reference, perhaps someone can use this someday. For anyone who has converted their 65-70 B Body from front Drum to Disc, or even to Disc Disc, you know that unless buying a complete system or kit, finding the correct tube nut sizes takes a little research. Even on the same line size, apparen...

cdnpont · cdnpont

Corvette rotors on 69-70 Canadian full size Pontiacs. A few years back, upon starting my chassis restoration, I had decided that my 69' Parisienne would need disc brakes in place of drums on the front. A little more performace would demand that braking be increased as well. Remeberi...

jonathanD · jonathanD

Hey everyone Ive been around Most of the day for a rear disc brake kit for my 12 bolt! ive looked through summit, cpp, jegs, speedway and a lot of the kits on there have mixed or poor reviews! so Im wondering if anyone one on here has swapped disc brakes onto there 12 bolts looking to spend under 1000$ if poss...

SGS Welding · SGS Welding

Not sure what bearing I need? 5707 or 1563 are they good quality? axle seals as well 30196 anyone else have experience I just dont want to end up with cheap China junk

oldsledguy · oldsledguy

What is the wheel code stamped on a wheel for a 1965 Custom sport with heavy suspensio and big block. Mine has aftermarket and the originals are long gone.

oldsledguy · oldsledguy

On a 65 Custom Sport what does the heavy suspension include and was this option added when the 409 was ordered?

4SPEED427 · 4SPEED427

I've had so much pressure to convert my 66 to a dual master I'm considering getting the parts together for the conversion. I may never do it, who knows. I need info please from anyone with experience. I will NOT be adding disc brakes to this car, and I will NOT be adding power brakes to this car, strictly...

Leo2+2 · Leo2+2

For a long time I've been searching the net for original 15 inch hubcaps. Theses were available for station wagons with disc brakes. Pages 41 & 42 of my manual makes reference to such wheels but I've never seen a set anywhere. Does anyone know anything about which hubcaps were used and what they loo...

ABC123 · ABC123

Installing my new shocks, Thank you Mr Delco for the new hardware. That's not always the case in aftermarket parts. My driver's side spring appears to be off location. It has a bit of a curve and rubs on the frame pocket opening. Original springs but I had then out when I added lift pucks on the trailing ar...

cdnpont · cdnpont

Yesterday I installed the Pittman arm on my manufactured Saginaw box. I used red locktite on the new nut along with the lockwasher. Used my big electric impact gun to run the arm up onto the splines. Gave it a good hit. Now it appears the box has some very slight play off center. It had zero play previous...

67-Beaumont · 67-Beaumont

Hello i am just wondering if you can install air shocks in a 1967 Beaumont front end stay safe

cdnpont · cdnpont

Are the rear lower control arms the same on a 65 as a 67? Reason I ask, is I'd like to detail and put 4 arms together pre conversion for a 12 bolt. I'd like to do a 12 4 arm to replace the weak and worn 10 bolt 3 leg (and both are loose!!) I have a pair of nice 67's lowers from our good member Cliff already. And have...

cdnpont · cdnpont

Anyone know for certain the rear bleed screw size on a 65 Full size? Is it 5/16-24? I'd like to do some speed bleeders back there.

cdnpont · cdnpont

I'm having a bear of a time getting my master to rear line to seal at the union. Seems no matter what, I am getting a hint of weep. I took the advice from here, and built up to tightening, on/on and slowly. And I'm on the third line now. Second union. Though I had it, but there is still a slight hint of weep. Firs...

tramminc · tramminc

Their are 4 bolts holding the face of the bumper on the brackets, what size are they 1/2 or 5/8 carriage? And how long?

Macker · Macker

I met a guy at a cruise night with some steering issues in his car. He has manual steering, 283 cu inch. i am trying to help him source some parts, my understanding 67-70 full size have the same front end. He needs a center link and steering box for sure, will put him in contact with norm for the Center link bu...

LT1Caddy · LT1Caddy

Hi... Any info on converting to rear disc brakes on 66 B body using C3 vette parts???? Thx in advance -- Edited by LT1Caddy on Monday 7th of September 2020 12:14:20 AM

cdnpont · cdnpont

I'm planning on adding 1970 front discs to my 65. This will require a dual Disc/Drum master along with some new plumbing. In thinking about the plumbing of the lines, I see a way it could be perhaps made easier. The existing single master 4 port distribution "T" could be made to work...If I could block th...

Topic		Started By	Replies	Views	Last Post
	STICKY: Differences In The Rear Brake Flex Line On A Convertible Compaired To A Sedan ? (Preview) (Online photo, not mine) My car has been on the hoist for 4 days now ! The problem is the rear flex line where it mounts and passes through the frame crossmember. There is a retaining clip for each side of the frame. Every part brought in has the clips too close together as if the cross member is too thick....	ABC123	18	4764	Aug 26, 2017 by seventy2plus2
	STICKY: Need brake rotors for your Disc brake 67-68 Parisienne? Here's a solution. (Preview) Had a nice visit this afternoon from CP member Cliff (oshawacliff), who has a gorgeous Oshawa 67 Impala FB.He's been trying to find replacement rotors as his car has the 4 piston disk brakes. He brought along the supposed 67-68 direct fit rotor from Ecklers he purchaced. What we discovered is th...	cdnpont	16	7484	Dec 9, 2012 by Ben01
	STICKY: Converting to Disc using a Combination valve. Flare nut size illustration. (Preview) CP'ers For reference, perhaps someone can use this someday. For anyone who has converted their 65-70 B Body from front Drum to Disc, or even to Disc Disc, you know that unless buying a complete system or kit, finding the correct tube nut sizes takes a little research. Even on the same line size, apparen...	cdnpont	12	7540	Nov 20, 2010 by davelacourse
	STICKY: Corvette rotors for big disc cars. (Preview) Corvette rotors on 69-70 Canadian full size Pontiacs. A few years back, upon starting my chassis restoration, I had decided that my 69' Parisienne would need disc brakes in place of drums on the front. A little more performace would demand that braking be increased as well. Remeberi...	cdnpont	5	10411	Jun 5, 2009 by Icon
	12 bolt disc brake kit? (Preview) Hey everyone Ive been around Most of the day for a rear disc brake kit for my 12 bolt! ive looked through summit, cpp, jegs, speedway and a lot of the kits on there have mixed or poor reviews! so Im wondering if anyone one on here has swapped disc brakes onto there 12 bolts looking to spend under 1000$ if poss...	jonathanD	5	142	yesterday by silver steak
	12 bolt axle bearings? (Preview) Not sure what bearing I need? 5707 or 1563 are they good quality? axle seals as well 30196 anyone else have experience I just dont want to end up with cheap China junk	SGS Welding	1	130	March 28th by SGS Welding
	1965 wheel code (Preview) What is the wheel code stamped on a wheel for a 1965 Custom sport with heavy suspensio and big block. Mine has aftermarket and the originals are long gone.	oldsledguy	0	122	March 13th by oldsledguy

	Heavy duty suspension (Preview) On a 65 Custom Sport what does the heavy suspension include and was this option added when the 409 was ordered?	oldsledguy	3	210	March 9th by 4SPEED427
	66 Convert to Dual Cylinder ( 1 2 ) (Preview) I've had so much pressure to convert my 66 to a dual master I'm considering getting the parts together for the conversion. I may never do it, who knows. I need info please from anyone with experience. I will NOT be adding disc brakes to this car, and I will NOT be adding power brakes to this car, strictly...	4SPEED427	29	412	February 28th by 67Poncho
	Rare 67 15-inch hubcaps ( 1 2 ) (Preview) For a long time I've been searching the net for original 15 inch hubcaps. Theses were available for station wagons with disc brakes. Pages 41 & 42 of my manual makes reference to such wheels but I've never seen a set anywhere. Does anyone know anything about which hubcaps were used and what they loo...	Leo2+2	25	693	February 28th by Leo2+2
	I may have a rear spring installed wrong (Preview) Installing my new shocks, Thank you Mr Delco for the new hardware. That's not always the case in aftermarket parts. My driver's side spring appears to be off location. It has a bit of a curve and rubs on the frame pocket opening. Original springs but I had then out when I added lift pucks on the trailing ar...	ABC123	12	400	January 14th by ABC123
	Installing the pitman arm on a power steering box, question. (Preview) Yesterday I installed the Pittman arm on my manufactured Saginaw box. I used red locktite on the new nut along with the lockwasher. Used my big electric impact gun to run the arm up onto the splines. Gave it a good hit. Now it appears the box has some very slight play off center. It had zero play previous...	cdnpont	9	670	January 10th by cdnpont
	Air shocks (Preview) Hello i am just wondering if you can install air shocks in a 1967 Beaumont front end stay safe	67-Beaumont	3	284	November 23rd by 67-Beaumont
	65-66 Rear lower B control arms, same a 67-70? (Preview) Are the rear lower control arms the same on a 65 as a 67? Reason I ask, is I'd like to detail and put 4 arms together pre conversion for a 12 bolt. I'd like to do a 12 4 arm to replace the weak and worn 10 bolt 3 leg (and both are loose!!) I have a pair of nice 67's lowers from our good member Cliff already. And have...	cdnpont	17	383	November 21st by cdnpont

	1965 rear bleeder screw size? (Preview) Anyone know for certain the rear bleed screw size on a 65 Full size? Is it 5/16-24? I'd like to do some speed bleeders back there.	cdnpont	2	205	October 26th by cdnpont
	3/16 Reverse flare sealing issues. (Preview) I'm having a bear of a time getting my master to rear line to seal at the union. Seems no matter what, I am getting a hint of weep. I took the advice from here, and built up to tightening, on/on and slowly. And I'm on the third line now. Second union. Though I had it, but there is still a slight hint of weep. Firs...	cdnpont	11	328	October 22nd by cdnpont
	1968 pontiac catalina bumper bolt size (Preview) Their are 4 bolts holding the face of the bumper on the brackets, what size are they 1/2 or 5/8 carriage? And how long?	tramminc	3	293	Sep 14, 2020 by seventy2plus2
	1967 Pontiac strato chief steering box (Preview) I met a guy at a cruise night with some steering issues in his car. He has manual steering, 283 cu inch. i am trying to help him source some parts, my understanding 67-70 full size have the same front end. He needs a center link and steering box for sure, will put him in contact with norm for the Center link bu...	Macker	5	393	Sep 14, 2020 by cdnpont
	Looking for info on Rear vette conversion on 66 B body (Preview) Hi... Any info on converting to rear disc brakes on 66 B body using C3 vette parts???? Thx in advance -- Edited by LT1Caddy on Monday 7th of September 2020 12:14:20 AM	LT1Caddy	1	361	Sep 7, 2020 by rebelrouser
	Brake line "T" fitting question. (Preview) I'm planning on adding 1970 front discs to my 65. This will require a dual Disc/Drum master along with some new plumbing. In thinking about the plumbing of the lines, I see a way it could be perhaps made easier. The existing single master 4 port distribution "T" could be made to work...If I could block th...	cdnpont	20	1027	Jul 8, 2020 by cdnpont
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