Engine swap 99 bulldo to 03 mastiff
- Thread starter Top dog
- Start date
Welcome from Florida! Post some pics of what you got going on. 
john sachs
Well-Known Member
There are spacers available from some aftermarket warehouses that offer parts, that should/may solve your problem. Try MID-USA M/C parts in Mo. or MIDWEST M/C Supply / Jireh, also in Mo.
John
John
Different Offset, 03 Mastiff would be 1.5" offset you can go the spacer route or the 1.5" Inner Primary. You're going to need 1.5" offset compensator setup too.
www.bigdogpartskingpin.com
www.bigdogpartskingpin.com
BIG DOG MOTORCYCLES 1 1/2" INNER PRIMARY 2003-04 RT CHOPPER 2003-04 MA
BRAND NEW OEM BIG DOG MOTORCYCLES 1 1/2" OFFSET CHROME INNER PRIMARY. FITMENT IS FOR: 1 1/2" OFFSET FOR 2003-2004 LEFT SIDE DRIVE MODELS WITH ROLLING THUNDER FRAME ONLY. DT FRAME REQUIRES A DIFFERENT OFFSET, WE HAVE THOSE TOO! Check Out the VIN Decoder Page for assistance on Chopper RT/DT Frame...
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BIG DOG MOTORCYCLES COMPENSATOR SPROCKET ASSEMBLY 2003-04 RT CHOPPER M
BRAND NEW COMPLETE BIG DOG MOTORCYCLES COMPENSATOR SPROCKET ASSEMBLY. 1 1/2" OFFSET FOR 2003-2004 LEFT SIDE DRIVE MODELS WITH ROLLING THUNDER FRAME. FITS 2003-04 BIG DOG RT CHOPPER AND MASTIFF. INCLUDES EXTENDED COMPENSATOR SHAFT, CAM, SPROCKET, SPRING AND NUT. FACTORY OEM PARTS FROM THE...
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Rottweiler
Well-Known Member
Glad to hear Eric is a big help. Keep up posted on how things go. 
Jersey James
Jersey James
Correct me if I'm wrong, but why would you want to swap out a 1999 Baker 5 speed, when the 2003 had a 6 speed??? My 03 Put Bull has a factory Baker 6 speed. Maybe the Mastiff came with a 5 speed, not sure.
Actually the older BigDog motorcycles had a Andrews 5 speed. Maybe that’s what he has on that bike.
BigDogRick
Well-Known Member
.Actually the older BigDog motorcycles had a Andrews 5 speed. Maybe that’s what he has on that bike.
i think it was a mixed bag. My 2000 Vintage Classic came with a Baker 5 speed and has since been upgraded to a Baker 6 speedActually the older BigDog motorcycles had a Andrews 5 speed. Maybe that’s what he has on that bike.
That is to funny. I guess back then they just put on whatever was in the next crate! Lol! My 2000 Vintage Sport has a Baker 6 speed also but I have no idea if it was a 5 speed before that. But that bike has loads of upgrades. Do you have the TP engine? Just curious. Great pics your posting btw!
BigDogRick
Well-Known Member
Hey Mick, I've got the S&S Sidewinder. interesting story, I had the Baker 5 speed for about five years and at about 45,000 miles had a crazy crack in my frame that developed at the lug where the vertical twin member under the seat, behind the engine meets the top frame at the split around the battery. I had just finished a ride from Michigan to Memphis and back and had hit a bunch of spalled joints in the concrete interstate that jarred my teeth. I got air a couple of times. Any way, got back home and was on my way to bfast on the interstate at 70 mph outside Grand Rapids when the lug let go and my seat lifted about two inches as my shocks expanded. I was about a mile from the exit with the restaurant at the bottom of the ramp. I went in and had with my riding buddies and called Mike at SW V-Twin (BD Dealer and custom shop) and told him what happened. He was there in 45 minutes with his trailer and took it back to the shop aghast! Well, long story short, he got BD to totally cover the frame under warranty and pay him to transfer everything from my old frame to the new. My new frame has a special reinforced lug at that joint now. While we were at it, we determined it was the time to swap out the 5 speed to the six. Mike had just come back from a bike show where he discussed the six speed with Baker and they were telling him about their brand new 6 speed that was geared to 1:1 at sixth instead of less than that for a true overdrive as had been their previous version. They really hyped the 1:1 and that's the way we went. That was late summer 2005..That is to funny. I guess back then they just put on whatever was in the next crate! Lol! My 2000 Vintage Sport has a Baker 6 speed also but I have no idea if it was a 5 speed before that. But that bike has loads of upgrades. Do you have the TP engine? Just curious. Great pics your posting btw!
Holy smokes! What a ride. Glad you got everything covered & repaired better than original equipment obviously. So funny how the older bikes were just a hodgepodge of different manufacturers put together as best they could to make it work & sell. I like to shit when Knothead told me what was on his ‘96. 4 years made a big difference between his awesome motorcycle & mine. Thank You for sharing this awesome story. This is how us rookies to the amazing BigDog motorcycle learn. Seems you live out west, not sure my old ass will ever make it that far. Arkansas was doable and hope to make it to Dave & Buffys new digs this year. But I will definitely be at Knothead’s in May. Be great to meet you & share these awesome stories!
