2500M Overdrive

2500M Overdrive

Author
Discussion

plasticpig1972

Original Poster:

79 posts

5 months

Wednesday 22nd July
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

16,012 posts

142 months

Wednesday 22nd July
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

134 posts

106 months

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

plasticpig1972

Original Poster:

79 posts

5 months

Saturday 25th July
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

2,581 posts

165 months

Saturday 25th July
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

1,605 posts

108 months

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

V6 Pushfit

15,734 posts

69 months

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