transmission | Fix My Hog

1998 FXDL Main-Shaft Nut

February 18, 2021 By Mark DiPietro & filed under Harley Tips.

I have to replace the rear seals on the main and jack shafts on my 98 fxdl. I need to know the diameter of the main shaft, and whether a std size 1 3/16 socket will work or do I need a deep socket? I fabricated the tool. Via Email If you are talking about…

Transmission Oil Level

November 9, 2020 By Mark DiPietro & filed under Harley Tips.

Hi. I have a 2008 Road King Police (FLHP) and after every ride, there’s a quarter-size oil drop just below the primary case, near the drain plug. When I checked the transmission oil level, it was low so I changed it and filled it full. So I’m thinking maybe a shifter or transmission case seal.…

In The Shop: Inner Primary Bearing and Race Failure

March 1, 2020 By Mark DiPietro & filed under Articles on Harley-Davidson How-to and More.

A problem that had become increasingly more common since around 2008 is inner primary bearing and bearing race failure. Until this time, bearing and race replacement was more commonly performed as preventive maintenance. In The Shop, we would commonly replace the bearing when performing jobs like belt and pulley replacement, transmission shift arm replacement, or…

Harley Will Not Shift

December 4, 2019 By Mark DiPietro & filed under Harley Tips.

Good day. I have a 1980 FLH That has been running great until it was parked for two weeks and then went I took it out I could hardly shift it. I actually had to force it in gear when up shifting. Now down shifting seemed to be easier and sometimes now not all the…

Shift Pawl

December 4, 2019 By Mark DiPietro & filed under Harley Tips.

Just got into second gear, want to shift in third, shifter lever moves. Transmission did not engage the next gear, possible cause? Shifting levers are tight. Via Email Inspect your transmission shift arm at the transmission. The spines of the arm & the shift pawl shaft may be stripped, or the weld may have broken…

5 Speed to 6 Speed

August 17, 2018 By Mark DiPietro & filed under Harley Tips.

Hello, I need a complete video of how to change out my stock 5 speed transmission to a (ultimate) 6 speed transmission can you help me? Via Email We have a video showing how to replace the entire gear set. If you are replacing the case (entire transmission), it is a bigger project. Have to…

JIMS Fat Five Upgrade

May 31, 2018 By Mark DiPietro & filed under Harley Tips.

1988 HD FXR…I am going to install a Delkron 91-93 inner primary and tranny case. Then I will install a Jim’s Fat 5 /Overdrive (thanks for the awesome video) set of gears. I am looking for a hydraulic clutch slave cover that will work with this set up. Have not had any luck finding one.…

In The Shop: Grinding Noise When Shifting into 4th

April 30, 2018 By Mark DiPietro & filed under Articles on Harley-Davidson How-to and More.

1989 FLHTC ISSUE: Grinding noise when shifting into 4th. DIAGNOSIS: Counter-shaft door bearing; complete failure. REPAIR: Complete transmission rebuild including: Main drive gear bearing (main bearing) Main drive gear internal bearings (2) Countershaft bearing Jims shift pawl assembly Main & Countershaft caged bearings (4) Shaft retaining clips Trans door bearings Throw out bearing Ball &…

Starter Pinion Gear

January 31, 2017 By Mark DiPietro & filed under Harley Tips.

I just put a Baker DD6 transmission in my 1999 Night Train. For some reason, the starter pinion gear is now resting against the ring gear on the clutch, and I have no clearance between the two at all. I have the jackshaft bolt torqued to spec, and I’ve checked and rechecked the assembly of…

New Transmission Case

July 27, 2016 By Mark DiPietro & filed under Harley Tips.

I need to remove my transmission an do a swap to a new transmission case on this bike where my rear sway bar mounts, it got cracked. Got a book but was wondering if you had a video just to make sure and make me feel more comfortable, first one I’ve done on a Harley.…