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| | | | Joined: Sep 2011 Posts: 131 Shop Shark | | Shop Shark Joined: Sep 2011 Posts: 131 | I am unable to source either gasket for the old diff.
I found a center section from a wreck that had the 4:11
ratio. It will replace my 5:17 gears.
What are the recommendations from you fellas with lots of experience as to a liquid or paste type sealer.
Mabey a rtv type silicone, or something from the aircraft industry.
You guys in the US are fortunate to be able to get lots of stuff we in the great white north are unable to get.
Thanks in advance. Howie
1 1955 Chev one ton. 261 engine
3 1962 Chev c-10 261 engine
4 1966 Plymouth VIP 5.7 GenIII Hemi
5 1966 Imperial Crown Coupe 440 engine
| | | | | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | What part numbers did you search for? I find it hard to believe these gaskets are not available, having recently purchased them myself. I'd want to use a gasket even if Inhad to make them from the correct thickness gasket paper. The gasket thickness for the center section affects where the side gears are and how the axle shafts slide in. If too far off location the axle shafts will flex sideways and fret on the splines in the side gears. Not sure how serious a concern it is but if using stock gasket you don't have to worry much. Here's some info from the post describing my rear gear swap. Here's a Tech Tip. http://www.stovebolt.com/techtips/axles/1%20Ton%20Upgrade/Gaskets, Pumpkin gasket; thin, and cover gasket; thick. PICTURE Ferl-Pro part numbers RDS 5090 and RDS 5988 I like to use Permatex #2 on most gaskets. Put a little on and spread it about as thin as possible with my finger, flip the gasket and repeat. Don't worry about loosing any when flipping, plenty enough stays on the gasket. PICTURE Also use the same Permatex on the bolt threads to seal them. PICTURE If I spread just the right amount on the gasket only the tiniest little bit squeezes out. PICTURE Also washed and removed any burs from axle and hub and put a new gasket on, Fel-Pro 55350. I didn't use any Permatex on the metal flange gasket because I'm not sure if it is a good idea? Time will tell if I should have. Did use Permatex on the axle flange bolt threads. PICTURE | | | | | Joined: Sep 2011 Posts: 131 Shop Shark | | Shop Shark Joined: Sep 2011 Posts: 131 | Thanks Grigg. I was disappointed that the two big supply chains
did not have a Fel-Pro listing for those part numbers. They both sell that brand and I have used them for years. I discovered yesterday that they can not supply a stovebolt side cover gasket. All part numbers they say are too old !!
All are available online from the US but have you ever tried to mail large gaskets. (another order for the Filling Station)
Good reminder of the thickness of the carrier gasket being engineered into the correct side gear location. It is thin but it counts. I will tap out one from roll stock.
Will also get a fresh tube of Permatex #2.
Thanks for your good advise. Howie
1 1955 Chev one ton. 261 engine
3 1962 Chev c-10 261 engine
4 1966 Plymouth VIP 5.7 GenIII Hemi
5 1966 Imperial Crown Coupe 440 engine
| | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | Manila file folders make good gasket material, if the correct thickness. Large gaskets can be rolled for mailing if not too stiff.
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Apr 2003 Posts: 608 Shop Shark | | Shop Shark Joined: Apr 2003 Posts: 608 | Gasket When not available, a Good Ole Pizza Box worked for Me!
Also have used the FelPro box the correct gasket for the carrier came in for the rear cover gasket
regards,
steve sr.
Last edited by steve sr; 06/24/2016 4:46 AM.
| | | | | Joined: Sep 2011 Posts: 131 Shop Shark | | Shop Shark Joined: Sep 2011 Posts: 131 | Thanks steve sr. Good tip, what topping of pizza worked the best?
Would not want heartburn when working on my back.
The local NAPA sold me a roll of gasket material so that will solve the problem, They had the axle gaskets but could no longer supply some of the FelPro items. For instance the side cover gasket is now only available in a complete valve grind set.
We have a winter home in southern Ca. and will buy lots of stuff again this Nov.
Thanks everyone. Howie
1 1955 Chev one ton. 261 engine
3 1962 Chev c-10 261 engine
4 1966 Plymouth VIP 5.7 GenIII Hemi
5 1966 Imperial Crown Coupe 440 engine
| | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | The guy at our NAPA store didn't understand what a side cover was. Once he stumbled on the "pushrod cover" he brought up the correct part. | | | | | Joined: Jul 2015 Posts: 203 'Bolter | | 'Bolter Joined: Jul 2015 Posts: 203 | I use "The Right Stuff" in lieu of gaskets for everything. No issues.
1953 GMC 1-Ton Pickup with 350 and 700R4
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