GKN to BTR conversion .

[SILICONEKID346HP]

I`m wondering if buying a new one would be better value ,after having mine reconditioned with second hand parts there is not going to be a big difference in the price
http://www.ebay.co.uk/itm/TVR-BTR-Differntial-3-45...

[gacksen]

what has been damaged on yours ?

[SILICONEKID346HP]

gacksen said:

what has been damaged on yours ?

LSD shot and maybe the crown and pinion and number of other tired parts .

Why do you have a good GKN in your garage ?

[gacksen]

would be nice to have it´s more like waiting for mine to fail....

have also thought about a BTR conversion if it fails as currently in the car is a 3.77 gkn.

[SILICONEKID346HP]

gacksen said:

would be nice to have it´s more like waiting for mine to fail....

have also thought about a BTR conversion if it fails as currently in the car is a 3.77 gkn.

What year is your car ? I`m not sure if mine is 3.77:1 or 3.31:1.

What`s the easiest way to find out .

[rigga]

SILICONEKID346HP said:

What year is your car ? I`m not sure if mine is 3.77:1 or 3.31:1.

What`s the easiest way to find out .

Easiest way is to look at the tag that might still be attached and legible on the case that states what ratio it is. If not there then count the pinion and crownwheel teeth.

Edited by rigga on Sunday 20th April 22:53

[Alexdaredevils]

I still got a fully working Gkn, let's see if it will take Ls power

[SILICONEKID346HP]

Alexdaredevils said:

I still got a fully working Gkn, let's see if it will take Ls power

Have you checked if the LSD is in operation ?

[gacksen]

SILICONEKID346HP said:

What year is your car ? I`m not sure if mine is 3.77:1 or 3.31:1.

What`s the easiest way to find out .

the ratio is imprinted on the side of the diff. car is from 94.

[Grey Ghost]

Unless the ebay add posted by Daz is the Central TVR ebay shop I'd give Adrian a call as he has recently taken delivery of a load of the original BTR 3.45:1 diffs.

[SILICONEKID346HP]

Grey Ghost said:

Unless the ebay add posted by Daz is the Central TVR ebay shop I'd give Adrian a call as he has recently taken delivery of a load of the original BTR 3.45:1 diffs.

The Ebay seller is Central , £750 is a bit on the heavy side , i wonder what the condition of the internals are like sitting in a hot humid country for years .

[Grey Ghost]

SILICONEKID346HP said:

Grey Ghost said:

Unless the ebay add posted by Daz is the Central TVR ebay shop I'd give Adrian a call as he has recently taken delivery of a load of the original BTR 3.45:1 diffs.

The Ebay seller is Central , £750 is a bit on the heavy side , i wonder what the condition of the internals are like sitting in a hot humid country for years .

Good question to be fair Daz.

Have a drive over to see Adrian and his team, very approachable and will probably show you one up close if you ask

[Graham]

SILICONEKID346HP said:

The Ebay seller is Central , £750 is a bit on the heavy side , i wonder what the condition of the internals are like sitting in a hot humid country for years .

judging by the condition of all the other stuff they got ( adrian showed me around the hord when i picked up the old chaps M), and the outside of the diffs, id say the condition of the insides is probably spot on. the stuff looks to have been stored carefully

[Brummmie]

Alexdaredevils said:

I still got a fully working Gkn, let's see if it will take Ls power

Brumm..bruummm..dump..clunk, clunk, clunk, will be diff or driveshafts!

[Andy JB]

Folks already mentioned Central stock & yes superficially it looks good condition when i viewed recently

Andy (their technician) was telling me it would be possible to retro fit later BTR diffs esp as orig GKN no longer made/stocked - change to mounting brackets

[SILICONEKID346HP]

Andy JB said:

Folks already mentioned Central stock & yes superficially it looks good condition when i viewed recently

Andy (their technician) was telling me it would be possible to retro fit later BTR diffs esp as orig GKN no longer made/stocked - change to mounting brackets

Iv`e not seen any brackets for sale ,been making phone calls ,I wish someone would sell them off the shelf .

[ctsdave]

Dont beleive they do Daz. We had to modify to suit when we converted racer... Bought BTR mounts and basically got kne set from the 2! Done with diff in place on jack to measure on car...

[SteveSPG]

i swapped a gkn for btr....never found anyone who had brackets off the shelf, so ended up making my own...

[Alexdaredevils]

Be patient Daz, a kit is on it's way

[SILICONEKID346HP]

Alexdaredevils said:

Be patient Daz, a kit is on it's way

Keep me posted ,i want the brackets ! please . Is there four brackets or just the two ? Cheers Alex