R380 differences
- Thread starter SMLE
- Start date
There are variations for different vehicles, with different bellhousings and input shaft lengths, and there are internal differences between the vehicle applications.
Having said that, a Disco box will be physically the same as another Disco box, but a P38 box won't fit a Disco or vice versa.
Scroll down this page to see some internal differences, for example.
www.ashcroft-transmissions.co.uk
Having said that, a Disco box will be physically the same as another Disco box, but a P38 box won't fit a Disco or vice versa.
Scroll down this page to see some internal differences, for example.
Ashcroft Transmissions
Ashcroft Transmissions is a UK based company specialising in the supply of rebuilt manual and automatic gearboxes, transfer cases and differentials to suit Land Rover, Range Rover, Discovery and Freelander 4x4 vehicles.
Thanks guys. Have a '96 Disco 1 with manual transmission.
The diameter of the input shaft on my R380, where it fits into the pilot bushing (spigot bush) is approximately 0.751 inches.
Purchased a Chevy conversion kit. The pilot bushing I was supplied with has an internal measurement of approximately 0.593 inches.
Discussion with the supplier indicates their kit was for 3.5 and 3.9 engine vehicles. Mine was a 4.0 (looks like Rover switch to 4.0 in 1996 ?). Everything seems to be lining up correctly except for the pilot bushing issue...
The supplier is saying that the manual transmission on the 3.5 and 3.9 Disco 1's have a smaller input shaft diameter.
Purchased the kit over three years ago. Don't recall the web page for the kit indicating the 3.5/3.9 only thing, but I suppose I might have overlooked that...
I'm looking at having to try to remove 0.158 inches from the bushing, but am thinking I might bugger the oil impregnated bronze bushing by closing the surface pores. The other option is to machine the R380 input shaft down to the size of the supplied bushing, but am wondering if this would negatively impact the transmission.
Anyone with some experience or thoughts on this? Find an R380 from a '94 or '95 D1? Replace the input shaft with one from a '94/'95 ?
The diameter of the input shaft on my R380, where it fits into the pilot bushing (spigot bush) is approximately 0.751 inches.
Purchased a Chevy conversion kit. The pilot bushing I was supplied with has an internal measurement of approximately 0.593 inches.
Discussion with the supplier indicates their kit was for 3.5 and 3.9 engine vehicles. Mine was a 4.0 (looks like Rover switch to 4.0 in 1996 ?). Everything seems to be lining up correctly except for the pilot bushing issue...
The supplier is saying that the manual transmission on the 3.5 and 3.9 Disco 1's have a smaller input shaft diameter.
Purchased the kit over three years ago. Don't recall the web page for the kit indicating the 3.5/3.9 only thing, but I suppose I might have overlooked that...
I'm looking at having to try to remove 0.158 inches from the bushing, but am thinking I might bugger the oil impregnated bronze bushing by closing the surface pores. The other option is to machine the R380 input shaft down to the size of the supplied bushing, but am wondering if this would negatively impact the transmission.
Anyone with some experience or thoughts on this? Find an R380 from a '94 or '95 D1? Replace the input shaft with one from a '94/'95 ?
Maybe let the supplier know that a 94-95 D1 had a 3.9 engine and uses the same pilot bushing as the later 4.0.
If I had to venture a guess, I'd say the kit was designed with Defenders in mind and there may be differences in the pilot bushings with the older engines in them. But that is purely a guess.
If I had to venture a guess, I'd say the kit was designed with Defenders in mind and there may be differences in the pilot bushings with the older engines in them. But that is purely a guess.
I think they do custom work if you can't find a local shop to do it
www.novak-adapt.com
what engine are you putting in?
Novak Conversions Home
Novak Conversions is the leading company in high quality Jeep Conversions foir GM powertrains. We specialize in all kinds of swaps, and provide quality Made-in-America precision maching.
what engine are you putting in?
Are we talking about a brass pilot bushing for the rear of a chevy small block? A vise and a drill bit should be fine.
Chevy 350.
It's an Oilite Bronze bushing. I probably will go that route to begin with and see how long it lasts while I find a more permanent solution.
It's an Oilite Bronze bushing. I probably will go that route to begin with and see how long it lasts while I find a more permanent solution.
You could always machine it to fit and send it to a company to be coated with something. Probably wouldn’t cost too much.