Cougar 2000 drive shaft replacement?

[concorde]

Would anyone be able to advise me of the best approach to replacing the telescoping driveshafts of the Cougar 2000? Mine are actually in OK-ish condition albeit quite bindy. But as I am building a runner for track use I just feel it would benefit from normal steel driveshafts. Muzoom in the UK have the alloy outdrives but no FIreblade type driveshafts. Are there alternatives that can be made to fit?

[concorde]

I have purchased a used Rascal ball diff with conventional outdrives. I'll report back if they fit the 50T 48DP cougar 2000 diff.

[concorde]

The rascal diff is way bigger. The outdrives look like they are for a 1/8th scale!.... Back to the drawing board.

[concorde]

Would anyone be able to tell me if another ball diff outdrive has a diameter of 19mm? Up to 21mm may also work. The outdrive cups need to be 10mm diameter.

[Retro rc]

If you have out drives these are the drive shafts


https://www.racing-cars.com/1-10th-2wd-buggy/cougar-sv/driveshaft-cougar-sv-pr-u3752

They are the blade type drveshafts same as the fireblade USA u1915a according to Schumacher.

If you also need the out drives and blades

https://www.racing-cars.com/1-10th-touring/sst99/light-alloy-blade-diff-output-female-u2006

https://www.racing-cars.com/1-10th-2wd-buggy/firebladeusa/light-alloy-blade-diff-output-male-u2007

https://www.ebay.com/itm/265965672588


Hope this helps
Adrian

[1911Colt]

If you have out drives these are the drive shafts


https://www.racing-cars.com/1-10th-2wd-buggy/cougar-sv/driveshaft-cougar-sv-pr-u3752

Will this same shaft fit a Storm 2000 instead of a Cougar 2000? Asking for a friend...

[Retro rc]

No they won’t as the truck had longer arms all round, if you freind has the manual with a part number I can probably figure out a replacement for them

[1911Colt]

No they won’t as the truck had longer arms all round, if you freind has the manual with a part number I can probably figure out a replacement for them

Thank you! I wasn't sure if they were the same. I had read that Schumacher simply used a wider chassis for the truck as a means of increasing track width. There was a 30 year gap between my ownership of a Cougar 2000 and this Storm 2000, so I can't compare them to verify

[1911Colt]

Maybe they are the same! I checked the Cougar 2000 manual. It also lists U1511Y "driveshafts, Co-Ax U/J - C2000 (pr)".

[Retro rc]

Maybe they are the same! I checked the Cougar 2000 manual. It also lists U1511Y "driveshafts, Co-Ax U/J - C2000 (pr)".

Looks like they are the same but there is a outdrive extender listed, must be to allow for the wider arms. Also the original driveshafts are a slider setup so would take up some of the difference. I wouldn’t risk it till you’ve got a few measurements to double check

[Typpo]

The following thread may be helpful.
https://www.rc10talk.com/viewtopic.php?t=28751

The download link in the last post of the thread above is not working. I will look into options to make the file available and post an update. For now, the following text may be helpful. Please note, my experience is limited to the CAT 2000 '98 but the kits of this generation had many parts in common.

The linked writeup describes what is required to use Menace driveshafts (U2695), rear hubs (U2688), and hexes (U2682) in place of the the CAT 2000 '98 rear driveshafts (U1915), rear hubs (U1843), and hexes (U1408). Though the Fireblade 2000 and the Fireblade USA had different rear arms (U1983 and U2088) than the CAT '98 (U1800), all three have the same rear driveshafts (U1915), hubs (U1843), and hexes (U1408) listed on the exploded diagrams. The Fireblade 2000 used steel diff washer carriers (U1891 and U1892) and the Fireblade USA used alloy diff washer carriers (U2006 and U2007).

Additional observations from the Schumacher exploded diagrams are as follows:

The Fireblade 2000, the Fireblade USA and the Cougar 2000 used the same rear hexes (U1408) and hub carrier bearings (U1439) .

The Fireblade 2000 and the Fireblade USA exploded diagrams list the U1843 hub carriers and the Cougar 2000 lists the U1431 hub carriers. Cross referencing the CAT 2000 (U1431 hub carrier) and CAT 2000 EC (U1799 -- should be compatible with the optional U1843 hub carrier) exploded diagrams indicates both were compatible with the U1510 axle and therefore should have the same dimensions required to fit the U1915 driveshaft axle.

The Fireblade 2000 and Fireblade USA use the U1992 diff gear and the Cougar 2000 uses the U1442 diff gear. All three exploded diagrams list the U730 (U1954 is the "Pro" option) thrust bearing, U1415 diff washers, U1419 bearings, and U1420 diff balls.

The Fireblade diff screw set part number is U1887 and the Cougar 2000 part number is U1417.

The Fireblade diagrams list U1923 flanges while the Cougar 2000 diagram lists U1423. Based on the parts pictured, the Fireblade's diff may be a different diameter than the Cougar 2000 diff.

The Fireblade 2000 rear arms are U1983 the Fireblade USA rear arms are U2088 and the Cougar 2000 rear arms are U1433.

Additional notes
The Cougar 2000 exploded diagram in the writeup shows U1413 driveshafts along with U1469 and U1470 diff washer carriers. It is not clear what the difference is between the U1469 and U1470 diff washer carriers and the U1891 and U1892 diff washer carriers. They could be different lengths.

It is not clear why Schumacher used the telescoping driveshafts (probably U1510 and U1511) and the corresponding carriers (probably U1504 and U1505) on some models and steel driveshafts on others. Perhaps someone can explain why.

The light alloy female and male outdrives U2006 and U2007 will get chewed up by the steel driveshaft pin of U3752 linked in the above posts. The compatible steel outdrive equivalents are:

U1891 Diff Washer Carr Male - SST
U1892 Diff Washer Carr Female - SST

I do not have measurements of the newer generation driveshafts (e.g. U3752 linked above) to confirm if there are more modern compatible alternatives to U1915. There are a variety of dimensions that need to match up for an alternative to fit.

If you have out drives these are the drive shafts
https://www.racing-cars.com/1-10th-2wd-buggy/cougar-sv/driveshaft-cougar-sv-pr-u3752
They are the blade type drveshafts same as the fireblade USA u1915a according to Schumacher.
...

Do you have a picture of these driveshafts used with a Cougar 2000? Based on the picture on Schumacher's site, the U3752 driveshaft appear to have a 2.5mm outdrive pin. The U1915 driveshafts had a much thinner pin that held the 2.5mm thick U1918 blades.

Also, the dimensions of the U3752 driveshaft appear to be different than the U1915 driveshaft.