R151F How to I.D. ?

[5020Chris]

Hello all, after much reading about dropping the 1uz into my Hilux and after reading many posts about which trans to use I have come to the conclusion that I need a R150F/R151F to handle the power and torque.

My Hilux has a G58 currently but I have found a 1993 Hilux surf 2.4TD with 5 speed manual that is being broken for spares and my question is how to I.D. the R150F/R151F as the sticker/plate on the bulk head is missing.
Have I got my facts right ;

The R150F/R151F is the only 5 speed with a rubber bung on the under side at the front of the housing just behind the sump of about 3.5 inches across ?
The difference between the two is only the ratio of the first gear ?
This is the ideal trans to put behind the 1uz ?
Any more info etc would be great.
Thanks in advance for any help, still much to learn as ever,
Chris.

 

[zidaro]

yes, circular hole on bottom of bell. R151 is only one with the hole.
Good info on pirate4x4.com toyota forum and on Marlincrawler.com for pictures/ID /info of differences between trannies. 151 has the lower first gear and is a bit more heave duty/ bigger bearings.

 

[gloverman]

I find as a rule with toyotas the bigger boxes have the drain on the side at the bottom whereas the smaller boxes are directly to the bottom. Surfs / hilux seem to follow this rule. I have done 4x4 swaps with both boxes and have had no problem with the smaller boxes yet. If I was building a serious mud toy I would use the bigger box - For piece of mind - Cheers