differentials

[toolmaker]

hi, anyone on here know what size diffs were fitted to dolomites?
cheers.
ian

[Clive]

Sort of.
The 4.11, 3.89 and 3.63 are all teh same "size", the sprint, 3.45, is different but in common with TR's, big saloons etc.

[toolmaker]

thanks, reason i asked is if i fitted a 3.63 to my gt6, wondered if a dolomite or spit speedo would be ok , i would just change the face
of the speedo to the gt6 one.

[Clive]

Ah, I see your point.
Most of the dollies (all?) And the 1500 spit all seem to use a 10000 or whatever it is speedo. The changes to the drive are in the gearbox. Never played, but I believe a variety are available.
I have never had an accurate speedo. I suspect the easiest way to go is to get yours recalibrated. But that is too easy....

[toolmaker]

thanks for that again clifty, its just the mind wondering, i will research further.

[Toledo Man]

Clive, you forgot to mention that the 1850 auto has a 3.27 diff.

[Richard B]

Shsss! (shhh)

;D ;D ;D

[Freebird]

I thought it would be interesting to collate a list - this is what I have gleaned so far:

4.11 - Toledo 1300
3.89 - Dolly 1500?
3.63 - Dolly 1850/TR7 4 speed
3.45 - Dolly Sprint
3.27 - Dolly 1850 Auto.

There must be a few cars missing from that list EG: What has a Toledo 1500 got? - if you can find one..........Do OD and non OD cars have different ratio diffs?

[thescrapman]

I am sure a Dolly 1500 is a 3.63.

[mikeyb]

Most Dolly 1500 is 3.89 but very late cars were 3.63

[toolmaker]

thanks all who replied, so heres a question thrown in for you, if the speedo gearing is in the gearbox, would it then be possible to fit say a spitfire or dolomite speedo to a gt6 with the gt6 face on it, and retain the later trip meter push button as oposed to the cable?
get your thinking caps on chaps.
cheers, ian.

[Richard B]

or just decide on which speedo you want and send it to;

http://www.speedycables.com/

and get them to calibrate it for you.  8)

[toolmaker]

cheers richard, but thats the whole point i want to do it myself . i have already had great success with changing the rev counter over from cable to electronic at very low cost compared to what these guys charge.