What do you think?

S

satfix

Member
I have a 52 F1 with a 239 and 3 spd on the tree. Dana 44 rear end.

From the day I've had the truck, the transmission would 'grind' going into 1st gear (non-sync?).

This past weekend, I decided to change the gear oil in my rear end. I've had the truck since April and not sure if/when the prior owner changed it. So I decided to do it.

No issues with the change - but since then, there is NO grinding going into first gear? When I start out, and I drop the truck to 1st (from a stop), it slides in and off we go.

IS there a correlation between the new gear oil in the rear end and the fact my transmission no longer grinds going into first gear?

Thoughts?


Rich
 
correlation is coming to a complete stop before putting into first gear. non synchro trans will grind with out doing this. when are you going to change the trans gear oil? look for metal in bottom of trans case
 
Proper clutch adjustment and the viscosity of the transmission oil help slow the clutch disc to minimize first gear grinding. Depending on where you live, you might consider changing the transmission oil to 140 GL1 oil. You can also shift the transmission into second or third before shifting into first from a stop to stop the clutch disc from spinning. I can think of no correlation between the rear end grease and the first gear grind.
 
satfix. I'm making the assumption, that you are talking about the grinding happening when you are stopped, and try to put the trans into first gear. I can't see how changing diff lube would have an affect on the action of the transmission. If the the trans oil is old, or the wrong grade (i.e. diff gear oil), changing the lube, (I use 80/90 in my '46) would be something to do.
 
Thanks - I did flush the transmission and replaced the gear oil in it about 60 days ago (1000 miles ago?) --- I didn't think there was a correlation - but thought I'd ask and just enjoy the lack of grind. And, I do come to a complete stop and always go to neutral when I do - then drop to first gear. It would still grind as I 'pushed' it into first - that just seems to have quit now.

R
 
As 40cpe above said,,,Shift into second gear, then shift into first gear.
That should help eliminate the first gear grind. ;)




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