2500M Overdrive

2500M Overdrive

Author
Discussion

plasticpig1972

Original Poster:

203 posts

53 months

Wednesday 22nd July 2020
quotequote all
I imagine on a 2500M the gearbox is Triumph.
So can an Overdrive be fitted like on a Triumph GT6, fixed to Gearbox Output.
Was an Overdrive an Option on the 2500M and if so what Overdrive.
Thanks in advance if someone knows
Alan

phillpot

17,279 posts

190 months

Wednesday 22nd July 2020
quotequote all
plasticpig1972 said:
Was an Overdrive an Option on the 2500M
Yes ....... http://www.tvr-car-club.co.uk/uploads/9/5/1/5/9515...

the other tim

136 posts

154 months

Saturday 25th July 2020
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Would have been a Laycock, probably a J type.

plasticpig1972

Original Poster:

203 posts

53 months

Saturday 25th July 2020
quotequote all
Hi Tim,
thanks. I know someone who is in the process of buying a lhd 2500M and it doesn't have an Overdrive. He asked on the French TVR Club Forum if it is possible to fit an Overdrive.
Imho i think to have an Overdrive is a nice 60/70s thing.
Alan

Slow M

2,787 posts

213 months

Saturday 25th July 2020
quotequote all
Swap transmissions from non Laycock De Normanville O/D to O/D type. Use one with an A type, not J type. A type is stronger, and better suited to any engine performance upgrades your friend might perform, or that the car may already have.

Adding the Laycock O/D to an existing gearbox involves several costly parts. Shorter tail shaft being the one that comes to mind immediately.

plasticpig72

1,647 posts

156 months

Saturday 25th July 2020
quotequote all
Thanks,
sounds like the easiest way is to find a Gearbox with already an Overdrive
Alan

anonymous-user

61 months

Sunday 26th July 2020
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I would speak to Gary at TRGB he’s done a lot of work on TVR 2500 gearboxes and has a graveyard of parts.