Looking for a really good motor for your coach? We have been there and if we all learn through experiences and I gotta tell ya this motor looks really good! Go to Crate Motors
Alternator and AC compressor belt adjuster kits
The title of these all new kits don’t do them justice I mean when you hear belt squeal like the pig they are, you know you have to do something. It won’t go away though at first you try and rev the motor once or twice trying to will the problem to the car in front of you and you will toss a belt, chew up something soon if you don’t adjust the noisy fan belt. When I hear that dreaded noise I usually come up with something like “Douwwww!” because I know there will be greasy, burned, busted knuckles in my future! And if you are alone with no one to hold whatever long bar you come up with to push the alternator or compressor out you know there will be even more 4 letter words made up! This is no longer true— click here and learn about a pair of new kits brought to us by the creative mind of a fellow GMC owner. Belt adjusters
Insulated super-dooper carb to fuel pump line
This “better” part helps stop vapor lock tied with the carb fuel line getting too hot. A braided stainless covered teflon hose (PTFE) with a pyrojacket (firesleeve) that resists temps in access of 500 deg. continuous and up to 3000 deg. for 20 min. . This quality hose fits well without twisting and routes the fuel away from the hot thermostat housing.
Go here to learn about installation: carburetor line installation
It’s here The new aluminum low profile 455 intake manifold
Go to Aluminum intake for more
Intake manifold & carburetor renovation
You betcha this is an important part for your GMC. The 455 & 403 intake manifolds are having the problem of cracks forming between the secondary ports when this crack reaches the floor of the interior exhaust gasses from the cross over port contaminate the vacuum and performance then goes out the window. If you have low vacuum, rough idle, poor performance under load or intermittent performance issues, this may be your trouble. As carburetors age, they need more than good cleaning and new gaskets– they need to be remanufactured. Send us your carb., we will have it brought back to like new condition. Go to Carb & Intake for more information.
Transmission governor gear
When your 30+ year old governor gear does this, you now only have 1st & reverse gears. The transmission does not know to shift, btw– your speedometer stops working too that tells you this may have occurred. So much rides on this plastic “break away” part to do it’s job that it’s a no brainer to renew it or at least have an extra one with you in your parts carry box if it goes out. , your old one may be working fine— how much do you want to roll that dice? Not hard to put in and a life saver, this part only costs $14— get one!
Yes, we support Manny Travao and the super job he does supporting the GMC community by custom building the 425 transmission for our GMC. Not just any old transmission rebuild, Manny does it not only right but right to pull reliably our 12,000 pound hot rods and trust me when I tell you there is a difference! New chains, a biggie for a rebuilt GMC transmission. Your local transmission shop does not have access to new chains, Manny has them made! All metal bushings, no plastic and so many more special things that Manny includes in his custom transmissions that I can’t get into it all. Shipped, each transmission has been run on his custom check out stand so you know it works when you get it! $1550 and that’s with the custom torque converter listed below, I tell you there is no finer transmission actually at any price. We here at the Co-op will not install a transmission unless Manny builds it, just to iffy a job! Give us a call and we’ll set you up with a Manny tranny, you will not be disappointed.
Allison style Torque Converter
So you might say, “Why do I need this”?
Well, you don’t HAVE to have this but you should want something like it. This is an “extreme duty” torque converter specially modified with 3 bosses to fit the GMC. The torque twister is furnace brazed not regular welded, has a heavier thrust bearing, steel rivets on the fins, heavy duty spragg but the big news is it has a “thrust plate” welded to the center to stop the “ballooning” or swelling a torque converter does under heavy load. This unit is custom modified and in its regular application is used in school buses and dump trucks. The stall is stock so it won’t cause a uncomfortable ride. So what else could you ask for? Well, it would be nice if they were free but no, that’s a bit much to ask. They do run $185 with a good core, core charge is $50 so for you guys that want a unit shipped you would need to keep your old one (not worth the price of shipping besides you could never get all the fluid out) add $50 to the amount. So most of this will be an in house deal but that’s OK.
Sounds like something off the menu of a donut shop, right? Well, with the demise of the blue “super boot”, there had to be something better than that original style black boot with the useless band tabs that always seem to slip off. Oh yes, we have had the same troubles as all of you have had trying to keep the outer CV boots clamped and sealed. It gets really depressing replacing snapped boots and bands– and here is our answer! This outer CV “sticky” boot is made of a material that has a super bite surface that gives the best chance to keep the band from slipping plus they have a lip completely around the boot with a deep band depression, a real breath of fresh air for those that have had the band actually pop off while it is being tightened. These boots are $12.50 each which is cheap for such a better mouse trap.
See, its really not the mechanics fault that the boots that are available today slip off, its the lousey part. Can’t tell you how many people have called looking for this part. We bought all of the “super boots” as insurance trying to keep our work from coming back, the super boot has a band slot the same size as this new sticky boot which kept it in place. Now we have a new even better boot for you and for our techs too.
This boot along with our new 7 mm stainless steel double wrapped band makes the best attempt and providing the best possible boot system for the outer CV boots. The bands are $2 each. These bands used to be available but the manufacturer has discontinued it so to my knowledge they are all but impossible to find.
This makes it cost you $17.50 per side for the best possible CV protection, thinking what that joint does for you thats cheap! You will need a ratchet band clamp tool but this too is the best way to tighten up the band, most shops will have this tool but if you want one, the tool costs $26. Call if you need more information.
BTW: Whenever you remove a split shaft from your coach, the 6 inner CV bolts are a “one use bolt” and must be replaced. These extremely important bolts are torqued to 75fp and “stretch” themselves into place. You will not be able to retorque them to 75fp again. I used to think that “wives tale” was just that until I had a drive shaft fall out shortly after we installed it– I know now by first person experiences how important these grade 8 or better bolts actually are. We have them so if you do not have new bolts, please do yourself a great favor and order 6 bolts for each shaft you install.