GM synchromesh and your o2m tranny

[Red90]

Re: GM synchromesh and your o2m tranny

Something is different about measuring gear oil weights and engine oil weights (can't remember what). But a 75w/90 gear oil is equivalent to a 15w-ish/50-ish weight engine oil.

I'm well aware of viscosity ratings. That is very thick. The GM syncromesh is a 75W-80. Basically 1/2 the viscosity of a 75W-90.

[Mcrow]

Re: GM synchromesh and your o2m tranny


Reference: http://www.kewengineering.co.uk/Auto..._explained.htm

[Mcrow]

Re: GM synchromesh and your o2m tranny

Something is different about measuring gear oil weights and engine oil weights (can't remember what). But a 75w/90 gear oil is equivalent to a 15w-ish/50-ish weight engine oil.

[Red90]

Re: GM synchromesh and your o2m tranny

It works fine, but I preferentially go to Redline 75w/90 fluid. I find it the best.

75W-90? Seriously? That would be super thick....

[xJarodx]

Re: GM synchromesh and your o2m tranny

I forgot about Motul, that is a very nice fluid as well. I ran that when I used to work at Tunerworks.

Already grabbed some synchromesh, but I drive 100+ kms/day. I'll see how she goes and try the motul next.

Thanks for the insight.

[onceover]

Re: GM synchromesh and your o2m tranny

Park it in second gear. That fixed it for me.

[Natty54]

Re: GM synchromesh and your o2m tranny

use the gear 300 myself as well

[Mcrow]

Re: GM synchromesh and your o2m tranny

I since switched to Motul Gear 300, very nice feel, was good for the 8,000km this year

I forgot about Motul, that is a very nice fluid as well. I ran that when I used to work at Tunerworks.

[BaggedGLI]

Re: GM synchromesh and your o2m tranny

I since switched to Motul Gear 300, very nice feel, was good for the 8,000km this year

[xJarodx]

Re: GM synchromesh and your o2m tranny

I have an O2A, but no complaints here either, helped "fix" my second gear!

Love it, it's goin down this weekend

[xJarodx]

Re: GM synchromesh and your o2m tranny

I used the AC Delco synchromesh and it worked great, used it on Colin's car too and i haven't heard any complaints so far.

If you and Colin use it, then I'm down. Thanks guys

[Mcrow]

Re: GM synchromesh and your o2m tranny

It works fine, but I preferentially go to Redline 75w/90 fluid. I find it the best.

[GingerBeef]

Re: GM synchromesh and your o2m tranny

I have an O2A, but no complaints here either, helped "fix" my second gear!

[kujiwara]

Re: GM synchromesh and your o2m tranny

Works great.

[MechEngg]

Re: GM synchromesh and your o2m tranny

I used the AC Delco synchromesh and it worked great, used it on Colin's car too and i haven't heard any complaints so far.