Motor Trike Adventure kit for 1800 Goldwing

[brewerd]

The differential is from a cougar or mustang 7.5inch Independent rear suspension modified for a 1 3/4 inch output shaft. The seals used on both sides are skf 32mm x 62mm x 7 mm double lipped rubbler seals. hard to find seals but seals are a Napa 13966 part number cover of differential is a 7.5 inch differential 10 bolt. There is not now or will there ever be a service manual for any of their products.

Taking this apart to change seals involves removing the luggage trunk and moving back at least 6 inches the trike fiberglass body. lot of work for changing the seals. removing the pinion seal is a piece of cake compared to the output shaft seals. Removing the top trunk is almost brain surgery without scratching anything. forget about changing the oil unless you take cover off the differential or want to pump out the oil which defeats even changing it because of any debris that may be resting in the bottom of case. Take the time and remove the cover which involves the same procedure for replacing the seals. Other than that it is a good kit for bike but maintenance headache.

 

[Gorilla]

welcome aboard doug

 

[radismukes]

:welcome: DOUG! FROM SOUTH

To the Trike Talk Family!

 

[rhino 2]

Welcome to Trike-Talk........Doug.....

 

[Lee H. Mann]

Doug, Welcome to Trike Talk Forum from West Virginia.:wave4:

This is good information and should probably be re-posted elsewhere on the forum too.:Shrug:

 

[trike tech]

The differential is from a cougar or mustang 7.5inch Independent rear suspension modified for a 1 3/4 inch output shaft. The seals used on both sides are skf 32mm x 62mm x 7 mm double lipped rubbler seals. hard to find seals but seals are a Napa 13966 part number cover of differential is a 7.5 inch differential 10 bolt. There is not now or will there ever be a service manual for any of their products.

Taking this apart to change seals involves removing the luggage trunk and moving back at least 6 inches the trike fiberglass body. lot of work for changing the seals. removing the pinion seal is a piece of cake compared to the output shaft seals. Removing the top trunk is almost brain surgery without scratching anything. forget about changing the oil unless you take cover off the differential or want to pump out the oil which defeats even changing it because of any debris that may be resting in the bottom of case. Take the time and remove the cover which involves the same procedure for replacing the seals. Other than that it is a good kit for bike but maintenance headache.

I'll start out by saying everyone is different & that's always a factor (example, if you have arms like a gorilla our way of doing it may not work for you). Now that that is out of the way - In our facility we get the bike up in the air & remove the mufflers to access the diff cover. Not gonna lie, it's snug in there (we use a ratcheting combination wrench for the upper bolts) but it gives us just enough room to get all the bolts off & slide the diff cover out the bottom of the bike with the mufflers removed.

From there the stub shaft removes just like a standard Ford axle that's c clipped (or like my Jeep too). We do recommend using an RTV sealant make for gear oil contact in addition to a rear cover gasket & recommend not adding oil for 6-8 hours once buttoned up to ensure silicone sets properly. Diff oil capacity on an IRS MT kit is 1.25 quarts (will be about 1 1/2" or so below fill plug).